ReasoningSaturated
Trust Score:
25

BIG-Bench Hard

23 BIG-Bench tasks where models trailed humans — the benchmark that proved chain-of-thought prompting works, then fell to the reasoning-model era.

Launched: —Refresh: static
Status Assessment (saturated):

Frontier and reasoning-tuned models exceed ~90% on the 23-task average and are near-perfect on many individual tasks; the reasoning-model era made BBH trivial. Google DeepMind built BBEH (2025) — replacing each task with a harder counterpart — precisely because BBH stopped discriminating at the top.

Performance Timeline

Longitudinal progression of model scores against human baselines.

Performance & Historical Trajectory

Empirical score progression across model release dates and evaluation rounds.

Independent Vendor-Reported Human Baseline (84.3%)
ModelScoreDateSource TypeProvenance
MiMo-V2.6-Flash83.7%2026-09-12independentSource ↗
Claude Opus 5.580.2%2026-09-12independentSource ↗
Qwen 3.8 Max Prime75.5%2026-09-12independentSource ↗
Nemotron 3.5 Super VL77%2026-09-12independentSource ↗
Gemini 4 Argon84.1%2026-09-12independentSource ↗
Claude Haiku 5.577%2026-09-12independentSource ↗
Nano Banana 2.184.1%2026-09-12independentSource ↗
Mistral Large 480.9%2026-09-12independentSource ↗
GPT-6.1 Sol Pro84.1%2026-09-12independentSource ↗
GPT-6.1 Sol84.1%2026-09-12independentSource ↗
Claude Sonnet 5.584.1%2026-09-12independentSource ↗
Z.ai: GLM 5.3 Prime84.1%2026-09-12independentSource ↗
GPT-6 Luna Pro77%2026-09-12independentSource ↗
GPT-6 Luna77%2026-09-12independentSource ↗
GPT-6 Sol Pro84.1%2026-09-12independentSource ↗
GPT-6 Sol84.1%2026-09-12independentSource ↗
Claude Opus 5.587%2026-09-12independentSource ↗
Xiaomi: MiMo-V2.6-Pro-UltraSpeed84.1%2026-09-12independentSource ↗
Xiaomi: MiMo-V2.6-Flash77%2026-09-12independentSource ↗
Xiaomi: MiMo-V2.6-Pro77%2026-09-12independentSource ↗
Z.ai: GLM 5.3 FlashX80.9%2026-09-12independentSource ↗
DeepSeek V4.1 Flash77%2026-09-12independentSource ↗
Claude Sonnet 5.592.6%2026-09-12independentSource ↗
Claude Haiku 5.586.2%2026-09-12independentSource ↗
GPT-6.1 Sol Pro94.9%2026-09-12independentSource ↗
GPT-6 Luna92.1%2026-09-12independentSource ↗
Gemini 4 Argon93.9%2026-09-12independentSource ↗
Qwen 3.8 Max Prime91.1%2026-09-12independentSource ↗
DeepSeek V4.1 Flash 101777%2026-09-12independentSource ↗
GPT-6.1 Terra Pro84.1%2026-09-12independentSource ↗
GPT-6.1 Terra84.1%2026-09-12independentSource ↗
MoonshotAI: Kimi K3.1 Pro84.1%2026-09-12independentSource ↗
MiniMax: MiniMax M3.1 Flash77%2026-09-12independentSource ↗
Muse Spark Open84.1%2026-09-12independentSource ↗
LiquidAI: LFM2.5-24B-A2B77%2026-09-12independentSource ↗
Muse Wonder87%2026-09-12independentSource ↗
Qwen: Qwen3.8 Max Prime87%2026-09-12independentSource ↗
Upstage: Solar Mini 473.2%2026-09-12independentSource ↗
SpaceXAI: Grok 4.784.1%2026-09-12independentSource ↗
Qwen: Qwen3.8 Omni Flash77%2026-09-12independentSource ↗
GPT-6 Astra87%2026-09-08independentSource ↗
GPT-6 Astra Pro87%2026-09-08independentSource ↗
Gemini 3.8 Flash84.1%2026-09-07independentSource ↗
Gemini 3.8 Flash91.6%2026-09-07independentSource ↗
Qwen: Qwen3.8 Max (0902)84.1%2026-09-07independentSource ↗
Muse Spark 1.3 Contributor73.2%2026-09-07independentSource ↗
Muse Spark 1.384.1%2026-09-07independentSource ↗
Claude Fable 5.187%2026-09-05independentSource ↗
Hy489.6%2026-09-01independentSource ↗
Hy480.9%2026-09-01independentSource ↗
GLM 5.3 Flash90.7%2026-08-31independentSource ↗
Z.ai: GLM 5.3 Flash77%2026-08-31independentSource ↗
Qwen: Qwen3.8 Flash77%2026-08-31independentSource ↗
DeepSeek V4 Flash Vision Exp77%2026-08-26independentSource ↗
DeepSeek V4-Pro90.2%2026-08-21independentSource ↗
DeepSeek V4-Flash84.8%2026-08-21independentSource ↗
Z.ai: GLM 5.384.1%2026-08-21independentSource ↗
Claude Fable 5.187.9%2026-08-20independentSource ↗
Qwen: Qwen3.8 27B80.9%2026-08-19independentSource ↗
Gemini 3.7 Flash91.1%2026-08-18independentSource ↗
Gemini 3.7 Flash84.1%2026-08-18independentSource ↗
DeepSeek V4 Pro 081384.1%2026-08-18independentSource ↗
Grok 4.691.6%2026-08-17independentSource ↗
Qwen: Qwen3.8 2.4T A95B84.1%2026-08-17independentSource ↗
LiquidAI: LFM2.5-2.6B77%2026-08-16independentSource ↗
ByteDance Seed: Seed 2.1 Turbo80.9%2026-08-15independentSource ↗
SpaceXAI: Grok 4.684.1%2026-08-15independentSource ↗
Muse Glimmer 30B80.9%2026-08-15independentSource ↗
GPT-592.9%2026-08-12independentSource ↗
Nemotron 3.5 Lightning73.2%2026-08-12independentSource ↗
GPT-5 Image Mini80.9%2026-08-12independentSource ↗
GPT-5 Image84.1%2026-08-12independentSource ↗
Muse Spark 1.2 Contributor73.2%2026-08-10independentSource ↗
Muse Spark 1.284.1%2026-08-10independentSource ↗
DeepSeek V4.1 Flash86.6%2026-08-06independentSource ↗
Space Bunny Alpha88.4%2026-08-06independentSource ↗
DeepSeek V4 Flash 073186%2026-08-05independentSource ↗
DeepSeek V4 Flash 073180.9%2026-08-05independentSource ↗
ByteDance Seed: Seed-2.0-Code80.9%2026-08-04independentSource ↗
GPT-6 Astra89.9%2026-08-02independentSource ↗
Qwen: Qwen3.7 Flash73.2%2026-08-01independentSource ↗
Kimi K391.9%2026-07-31independentSource ↗
Claude Opus 593.6%2026-07-29independentSource ↗
Claude Sonnet 591.1%2026-07-29independentSource ↗
Claude Opus 587%2026-07-28independentSource ↗
Gemini 3.6 Flash89.7%2026-07-26independentSource ↗
Gemini 3.5 Flash-Lite83.8%2026-07-26independentSource ↗
Gemini 3.6 Flash84.1%2026-07-26independentSource ↗
Gemini 3.5 Flash Lite80.9%2026-07-26independentSource ↗
MoonshotAI: Kimi K387%2026-07-20independentSource ↗
GPT-5.6 Sol94.1%2026-07-14independentSource ↗
GPT-5.5 Thinking92.6%2026-07-14independentSource ↗
GPT-5.6 Luna87.2%2026-07-14independentSource ↗
GPT-5.6 Luna Pro80.9%2026-07-14independentSource ↗
GPT-5.6 Luna80.9%2026-07-14independentSource ↗
GPT-5.6 Terra Pro87%2026-07-14independentSource ↗
GPT-5.6 Terra87%2026-07-14independentSource ↗
GPT-5.6 Sol Pro87%2026-07-14independentSource ↗
GPT-5.6 Sol87%2026-07-14independentSource ↗
Muse Spark 1.184.1%2026-07-14independentSource ↗
SpaceXAI: Grok 4.584.1%2026-07-13independentSource ↗
Hy377%2026-07-11independentSource ↗
Claude Sonnet 584.1%2026-07-05independentSource ↗
Gemini 3.1 Flash Lite Image80.9%2026-07-05independentSource ↗
MiniMax M386.2%2026-06-30independentSource ↗
Qwen3-235B89.7%2026-06-23independentSource ↗
QwQ Plus89.2%2026-06-23independentSource ↗
Z.ai: GLM 5.280.9%2026-06-21independentSource ↗
Grok 492.6%2026-06-20independentSource ↗
GLM-5.287.2%2026-06-17independentSource ↗
MoonshotAI: Kimi K2.7 Code84.1%2026-06-17independentSource ↗
Claude Fable 594.6%2026-06-14independentSource ↗
Claude Fable 587%2026-06-14independentSource ↗
Nemotron 3 Ultra84.9%2026-06-09independentSource ↗
Nemotron 3.5 Content Safety73.2%2026-06-09independentSource ↗
Nemotron 3 Ultra80.9%2026-06-09independentSource ↗
Qwen: Qwen3.7 Plus80.9%2026-06-07independentSource ↗
MiniMax: MiniMax M380.9%2026-06-05independentSource ↗
Gemini 3.1 Flash Image80.9%2026-06-02independentSource ↗
Gemini 3 Pro Image (Nano Banana Pro)87%2026-06-02independentSource ↗
Claude Opus 4.887%2026-06-02independentSource ↗
Hy-MT2-1.8B73.2%2026-05-26independentSource ↗
Hy-MT2-30B-A3B77%2026-05-26independentSource ↗
Hy-MT2-7B77%2026-05-26independentSource ↗
Qwen: Qwen3.7 Max84.1%2026-05-25independentSource ↗
SpaceXAI: Grok Build 0.180.9%2026-05-25independentSource ↗
Gemini 3.5 Flash84.1%2026-05-24independentSource ↗
Gemini 3 Pro90.2%2026-05-23independentSource ↗
Gemini 3.1 Flash Lite80.9%2026-05-12independentSource ↗
GPT Chat Latest87%2026-05-10independentSource ↗
Command A+80.9%2026-05-06independentSource ↗
Mistral Medium 3.584.1%2026-05-05independentSource ↗
SpaceXAI: Grok 4.380.9%2026-05-05independentSource ↗
Qwen: Qwen3.6 Flash80.9%2026-05-02independentSource ↗
GPT-5.5 Pro87%2026-04-28independentSource ↗
GPT-5.587%2026-04-28independentSource ↗
DeepSeek V4 Pro 042380.9%2026-04-28independentSource ↗
DeepSeek V4 Flash 042373.2%2026-04-28independentSource ↗
MiMo-V2.582.5%2026-04-27independentSource ↗
Xiaomi: MiMo-V2.5-Pro77%2026-04-27independentSource ↗
Xiaomi: MiMo-V2.577%2026-04-27independentSource ↗
Qwen: Qwen3.6 27B80.9%2026-04-27independentSource ↗
Hy377%2026-04-26independentSource ↗
GPT-5.4 Image 287%2026-04-26independentSource ↗
Qwen: Qwen3.5 Plus 2026-04-2080.9%2026-04-25independentSource ↗
MoonshotAI: Kimi K2.684.1%2026-04-25independentSource ↗
Claude Opus 4.787%2026-04-21independentSource ↗
Qwen: Qwen3.6 35B A3B77%2026-04-20independentSource ↗
Z.ai: GLM 5.184.1%2026-04-11independentSource ↗
Gemma 4 26B A4B77%2026-04-08independentSource ↗
Gemma 4 31B77%2026-04-07independentSource ↗
Qwen: Qwen3.6 Plus80.9%2026-04-07independentSource ↗
Z.ai: GLM 5V Turbo84.1%2026-04-06independentSource ↗
Lyria 3 Pro73.2%2026-04-04independentSource ↗
Lyria 3 Clip73.2%2026-04-04independentSource ↗
Reka Edge73.2%2026-03-25independentSource ↗
MiniMax: MiniMax M2.780.9%2026-03-23independentSource ↗
GPT-5.4 Nano80.9%2026-03-22independentSource ↗
GPT-5.4 Mini84.1%2026-03-22independentSource ↗
Z.ai: GLM 5 Turbo84.1%2026-03-20independentSource ↗
Qwen: Qwen3.5-9B77%2026-03-15independentSource ↗
SpaceXAI: Grok 4.20 Multi-Agent80.9%2026-03-14independentSource ↗
SpaceXAI: Grok 4.2080.9%2026-03-14independentSource ↗
ByteDance Seed: Seed-2.0-Lite80.9%2026-03-14independentSource ↗
GPT-5.4 Pro87%2026-03-10independentSource ↗
GPT-5.487%2026-03-10independentSource ↗
Gemini 3.1 Flash Lite80.9%2026-03-08independentSource ↗
Gemini 3.1 Flash Image80.9%2026-03-03independentSource ↗
GPT-5.3-Codex87%2026-03-01independentSource ↗
ByteDance Seed: Seed-2.0-Mini77%2026-03-01independentSource ↗
Qwen: Qwen3.5-35B-A3B77%2026-03-01independentSource ↗
Qwen: Qwen3.5-27B80.9%2026-03-01independentSource ↗
Qwen: Qwen3.5-122B-A10B80.9%2026-03-01independentSource ↗
Qwen: Qwen3.5-Flash77%2026-03-01independentSource ↗
Gemini 3.1 Pro Custom Tools87%2026-02-24independentSource ↗
Gemini 3.1 Pro87%2026-02-24independentSource ↗
Claude Sonnet 4.687%2026-02-22independentSource ↗
Qwen: Qwen3.5 Plus 2026-02-1580.9%2026-02-21independentSource ↗
Qwen: Qwen3.5 397B A17B84.1%2026-02-21independentSource ↗
Z.ai: GLM 584.1%2026-02-16independentSource ↗
MiniMax: MiniMax M2.577%2026-02-16independentSource ↗
Claude Opus 4.687%2026-02-10independentSource ↗
MoonshotAI: Kimi K2.580.9%2026-02-01independentSource ↗
MiniMax: MiniMax M2-her80.9%2026-01-28independentSource ↗
Z.ai: GLM 4.7 Flash77%2026-01-24independentSource ↗
GPT-5.2-Codex87%2026-01-19independentSource ↗
MiniMax: MiniMax M2.180.9%2025-12-28independentSource ↗
Z.ai: GLM 4.780.9%2025-12-27independentSource ↗
o391.6%2025-12-25independentSource ↗
Gemini 3 Flash80.9%2025-12-22independentSource ↗
GPT-5.2 Chat87%2025-12-16independentSource ↗
GPT-5.2 Pro87%2025-12-16independentSource ↗
GPT-5.287%2025-12-16independentSource ↗
Z.ai: GLM 4.6V77%2025-12-13independentSource ↗
GPT-5.1-Codex-Max84.1%2025-12-09independentSource ↗
DeepSeek V3.277%2025-12-06independentSource ↗
Claude Opus 4.587%2025-11-29independentSource ↗
Gemini 3 Pro Image (Nano Banana Pro)87%2025-11-25independentSource ↗
GPT-5.184.1%2025-11-18independentSource ↗
GPT-5.1-Codex84.1%2025-11-18independentSource ↗
GPT-5.1-Codex-Mini80.9%2025-11-18independentSource ↗
Mistral Large 383.3%2025-11-17independentSource ↗
MoonshotAI: Kimi K2 Thinking80.9%2025-11-11independentSource ↗
MiniMax: MiniMax M280.9%2025-10-28independentSource ↗
Qwen: Qwen3 VL 8B Instruct77%2025-10-19independentSource ↗
GPT-5 Pro87%2025-10-11independentSource ↗
Qwen: Qwen3 VL 30B A3B Thinking77%2025-10-11independentSource ↗
Qwen: Qwen3 VL 30B A3B Instruct77%2025-10-11independentSource ↗
Claude Haiku 4.584.1%2025-10-06independentSource ↗
Claude Sonnet 4.587%2025-10-04independentSource ↗
Qwen: Qwen3 VL 235B A22B Instruct80.9%2025-09-28independentSource ↗
Qwen: Qwen3 Coder Flash77%2025-09-22independentSource ↗
Qwen: Qwen3 Next 80B A3B Instruct80.9%2025-09-16independentSource ↗
MoonshotAI: Kimi K2 090580.9%2025-09-09independentSource ↗
GPT-584.1%2025-08-12independentSource ↗
GPT-5 Mini80.9%2025-08-12independentSource ↗
GPT-5 Nano77%2025-08-12independentSource ↗
Claude 4.1 Opus87%2025-08-10independentSource ↗
Qwen: Qwen3 Coder 30B A3B Instruct77%2025-08-05independentSource ↗
Qwen: Qwen3 30B A3B Instruct 250777%2025-08-03independentSource ↗
Qwen: Qwen3 235B A22B Thinking 250784.1%2025-07-30independentSource ↗
Qwen: Qwen3 Coder 480B A35B77%2025-07-28independentSource ↗
ByteDance: UI-TARS 7B73.2%2025-07-27independentSource ↗
Qwen: Qwen3 235B A22B Instruct 250777%2025-07-26independentSource ↗
MoonshotAI: Kimi K2 071180.9%2025-07-16independentSource ↗
ByteDance Seed: Seed 1.6 Flash77%2025-06-30independentSource ↗
ByteDance Seed: Seed 1.680.9%2025-06-30independentSource ↗
MiniMax: MiniMax M180.9%2025-06-22independentSource ↗
Sarvam 105B85.5%2025-06-20independentSource ↗
o3 Pro87%2025-06-15independentSource ↗
Sarvam Vision (Document AI)78.9%2025-05-25independentSource ↗
Amazon Nova 2 Lite79.4%2025-05-23independentSource ↗
Amazon Nova 2 Lite77.8%2025-05-23independentSource ↗
Qwen: Qwen3 30B A3B77%2025-05-03independentSource ↗
Qwen: Qwen3 14B77%2025-05-03independentSource ↗
Qwen: Qwen3 32B77%2025-05-03independentSource ↗
o4 Mini High84.1%2025-04-21independentSource ↗
o384.1%2025-04-21independentSource ↗
o4 Mini84.1%2025-04-21independentSource ↗
Muse Wonder90.6%2025-04-20independentSource ↗
Muse Wonder Full93.1%2025-04-20independentSource ↗
GPT-4.184.1%2025-04-19independentSource ↗
GPT-4.1 Mini80.9%2025-04-19independentSource ↗
GPT-4.1 Nano77%2025-04-19independentSource ↗
Gemma 3 27B82.3%2025-04-17independentSource ↗
Nemotron 3 Ultra 550B89.2%2025-04-15independentSource ↗
Sarvam 30B81.1%2025-04-15independentSource ↗
Llama 4 Maverick88.2%2025-04-10independentSource ↗
Llama 4 Scout86.7%2025-04-10independentSource ↗
Gemini 2.5 Pro86.2%2025-03-30independentSource ↗
Gemini 2.5 Pro84.1%2025-03-30independentSource ↗
Gemini 2.5 Pro 06-0584.1%2025-03-30independentSource ↗
Microsoft-Decision-185.8%2025-03-27independentSource ↗
Nemotron 3 Super 120B82.8%2025-03-25independentSource ↗
OpenAI Decisions API91.1%2025-03-23independentSource ↗
Jev 1.1488.7%2025-03-19independentSource ↗
Krutrim-283.3%2025-03-17independentSource ↗
Reka Flash 373.2%2025-03-17independentSource ↗
Amazon Nova Premier 1.088.7%2025-03-15independentSource ↗
Amazon: Nova Premier 1.087%2025-03-15independentSource ↗
QwQ 32B84.5%2025-03-10independentSource ↗
Saaras v3 (Speech-to-Text)76.4%2025-03-06independentSource ↗
Bulbul v3 (Text-to-Speech)74.5%2025-03-06independentSource ↗
Phi-4-multimodal79.9%2025-03-05independentSource ↗
GPT-4.583.3%2025-03-04independentSource ↗
Claude 3.7 Sonnet87.3%2025-03-01independentSource ↗
Grok 390.2%2025-02-22independentSource ↗
Grok 3 Mini84.8%2025-02-22independentSource ↗
Phi-4-mini74.5%2025-02-20independentSource ↗
Perplexity: Sonar Deep Research84.1%2025-02-19independentSource ↗
Gemini 2.5 Flash (Thinking)83.5%2025-02-15independentSource ↗
Perplexity: Sonar Reasoning Pro84.1%2025-02-11independentSource ↗
Gemini 2.0 Pro83.8%2025-02-10independentSource ↗
Gemini 2.0 Flash80.4%2025-02-10independentSource ↗
Sonar Reasoning Pro88.2%2025-02-10independentSource ↗
Qwen: Qwen3 Coder Next77%2025-02-08independentSource ↗
o3-mini86.4%2025-02-05independentSource ↗
o3 Mini High84.1%2025-02-05independentSource ↗
o3 Mini84.1%2025-02-05independentSource ↗
Qwen 2.5 Max82.8%2025-02-02independentSource ↗
Qwen: Qwen2.5 VL 72B Instruct77%2025-01-31independentSource ↗
Qwen: Qwen-Plus77%2025-01-30independentSource ↗
Ollama DeepSeek-R1 (Q4_K_M)89.7%2025-01-27independentSource ↗
Perplexity: Sonar Pro Search87%2025-01-26independentSource ↗
Perplexity: Sonar Pro87%2025-01-26independentSource ↗
DeepSeek-R186.1%2025-01-25independentSource ↗
Gemini 2.0 Flash Thinking85.3%2025-01-25independentSource ↗
Kimi k1.583.3%2025-01-25independentSource ↗
R1 052880.9%2025-01-25independentSource ↗
MiniMax-Text-0179.4%2025-01-20independentSource ↗
MiniMax: MiniMax-0180.9%2025-01-20independentSource ↗
Codestral 25.0172.5%2025-01-19independentSource ↗
Phi-483.3%2025-01-13independentSource ↗
Phi 473.2%2025-01-13independentSource ↗
DeepSeek V3.2 Exp77%2024-12-31independentSource ↗
DeepSeek V3.1 Terminus77%2024-12-31independentSource ↗
DeepSeek V3.177%2024-12-31independentSource ↗
DeepSeek V3 032480.9%2024-12-31independentSource ↗
DeepSeek V380.9%2024-12-31independentSource ↗
DeepSeek-V387.5%2024-12-26vendor-reportedSource ↗
o187%2024-12-22independentSource ↗
Sonar Pro81.8%2024-12-15independentSource ↗
Ollama Llama 3.3 (Q4_K_M)81.3%2024-12-13independentSource ↗
Llama 3.3 70B77.9%2024-12-11independentSource ↗
Llama 3.3 70B Instruct78.9%2024-12-11independentSource ↗
Llama 3.3 70B Instruct77%2024-12-11independentSource ↗
o185.1%2024-12-10independentSource ↗
o1-pro87%2024-12-10independentSource ↗
Amazon Nova Pro79.4%2024-12-08independentSource ↗
Amazon Nova Lite72.5%2024-12-08independentSource ↗
Amazon Nova Pro 1.082.3%2024-12-08independentSource ↗
Amazon Nova Lite 1.076.4%2024-12-08independentSource ↗
Amazon Nova Micro 1.069.6%2024-12-08independentSource ↗
Amazon: Nova Lite 1.077%2024-12-08independentSource ↗
Amazon: Nova Micro 1.073.2%2024-12-08independentSource ↗
Amazon: Nova Pro 1.084.1%2024-12-08independentSource ↗
Command R7B (12-2024)73.2%2024-12-06independentSource ↗
QwQ-32B84.3%2024-12-03independentSource ↗
Krutrim Pro79.6%2024-11-25independentSource ↗
GPT-4o84.1%2024-11-25independentSource ↗
Upstage: Solar Pro 477%2024-11-25independentSource ↗
Jev87.4%2024-11-20independentSource ↗
Sonar77.4%2024-11-20independentSource ↗
TypeSafe: Jev Router73.2%2024-11-20independentSource ↗
Perplexity: Sonar77%2024-11-20independentSource ↗
Qwen 2.5 Coder 32B76.4%2024-11-17independentSource ↗
Qwen2.5 Coder 32B Instruct77%2024-11-17independentSource ↗
Hunyuan-Large81.3%2024-11-10independentSource ↗
Claude 3.5 Haiku73.5%2024-11-09independentSource ↗
Claude 3.5 Sonnet83.3%2024-10-27independentSource ↗
Claude 3.5 Sonnet (v2)81.8%2024-10-27independentSource ↗
BharatGPT-14B77.9%2024-10-23independentSource ↗
Yi-Lightning80.4%2024-10-20independentSource ↗
Llama-3.1-Nemotron-70B-Instruct84.3%2024-10-20independentSource ↗
Llama 3.2 1B Instruct77%2024-09-30independentSource ↗
Llama 3.2 3B Instruct77%2024-09-30independentSource ↗
Qwen: Qwen2.5 7B Instruct73.2%2024-09-24independentSource ↗
Qwen2.5 72B Instruct77%2024-09-24independentSource ↗
Switchyard73.2%2024-09-20independentSource ↗
Mistral Small 477%2024-09-20independentSource ↗
GPT Audio84.1%2024-09-20independentSource ↗
GPT Audio Mini80.9%2024-09-20independentSource ↗
Nemotron 3 Nano 30B A3B77%2024-09-20independentSource ↗
Devstral 2 251280.9%2024-09-20independentSource ↗
Ministral 3 14B 251273.2%2024-09-20independentSource ↗
Ministral 3 8B 251273.2%2024-09-20independentSource ↗
Ministral 3 3B 251273.2%2024-09-20independentSource ↗
Voxtral Small 24B 250777%2024-09-20independentSource ↗
gpt-oss-safeguard-20b77%2024-09-20independentSource ↗
Gemini 2.5 Flash Image80.9%2024-09-20independentSource ↗
Z.ai: GLM 4.680.9%2024-09-20independentSource ↗
Mistral Medium 3.180.9%2024-09-20independentSource ↗
Z.ai: GLM 4.5V80.9%2024-09-20independentSource ↗
gpt-oss-120b77%2024-09-20independentSource ↗
gpt-oss-20b73.2%2024-09-20independentSource ↗
Codestral 250877%2024-09-20independentSource ↗
Z.ai: GLM 4.580.9%2024-09-20independentSource ↗
Z.ai: GLM 4.5 Air77%2024-09-20independentSource ↗
Gemini 2.5 Flash Lite77%2024-09-20independentSource ↗
Hunyuan A13B Instruct77%2024-09-20independentSource ↗
Mistral Small 3.2 24B77%2024-09-20independentSource ↗
Gemini 2.5 Flash80.9%2024-09-20independentSource ↗
Mistral Medium 380.9%2024-09-20independentSource ↗
Llama Guard 4 12B73.2%2024-09-20independentSource ↗
Llama 4 Maverick77%2024-09-20independentSource ↗
Llama 4 Scout77%2024-09-20independentSource ↗
Mistral Small 3.1 24B77%2024-09-20independentSource ↗
Gemma 3 4B73.2%2024-09-20independentSource ↗
Gemma 3 12B73.2%2024-09-20independentSource ↗
Gemma 3 27B77%2024-09-20independentSource ↗
Saba77%2024-09-20independentSource ↗
Mistral Small 373.2%2024-09-20independentSource ↗
Mistral Nemo73.2%2024-09-20independentSource ↗
Gemma 2 27B77%2024-09-20independentSource ↗
Mixtral 8x22B Instruct84.1%2024-09-20independentSource ↗
GPT-4 Turbo87%2024-09-20independentSource ↗
Mistral Large84.1%2024-09-20independentSource ↗
GPT-3.5 Turbo (older v0613)80.9%2024-09-20independentSource ↗
GPT-3.5 Turbo Instruct80.9%2024-09-20independentSource ↗
GPT-3.5 Turbo 16k84.1%2024-09-20independentSource ↗
GPT-3.5 Turbo80.9%2024-09-20independentSource ↗
GPT-487%2024-09-20independentSource ↗
GLM-4-Plus78.4%2024-08-25independentSource ↗
Sarvam 2B (Sarvam-1)73.5%2024-08-19independentSource ↗
GPT-4o84.1%2024-08-11independentSource ↗
Command R (08-2024)77%2024-08-06independentSource ↗
Gemma 2 2B54.9%2024-08-05independentSource ↗
Mistral Large 275.5%2024-07-29independentSource ↗
Mistral Large 278.2%2024-07-29independentSource ↗
Mistral Large 3 251280.9%2024-07-29independentSource ↗
Llama 3.1 405B79.4%2024-07-28independentSource ↗
Llama 3.1 70B Instruct77%2024-07-28independentSource ↗
Llama 3.1 8B Instruct73.2%2024-07-28independentSource ↗
GPT-4o mini68.6%2024-07-23independentSource ↗
GPT-4o-mini77%2024-07-23independentSource ↗
GPT-4o-mini77%2024-07-23independentSource ↗
ERNIE 4.0 Turbo78.4%2024-07-03independentSource ↗
Gemma 2 27B75.5%2024-07-02independentSource ↗
Gemma 2 9B69.6%2024-07-02independentSource ↗
Claude 3.5 Sonnet93.1%2024-06-21vendor-reportedSource ↗
Nemotron-4-340B-Instruct82.3%2024-06-19independentSource ↗
Nemotron-4-340B-Reward83.3%2024-06-19independentSource ↗
Hanooman 7B75.5%2024-05-20independentSource ↗
GPT-4o79.9%2024-05-18independentSource ↗
GPT-4o84.1%2024-05-18independentSource ↗
GPT-4o87%2024-05-18independentSource ↗
Gemini 1.5 Pro89.2%2024-05-01vendor-reportedSource ↗
Snowflake Arctic73.5%2024-04-29independentSource ↗
WizardLM-2 8x22B79.4%2024-04-20independentSource ↗
DBRX Instruct74.5%2024-04-01independentSource ↗
Claude 3 Opus86.8%2024-03-04vendor-reportedSource ↗
Airavata 7B71.5%2024-01-30independentSource ↗
Gemini Ultra 1.083.6%2023-12-06vendor-reportedSource ↗
IndicTrans-268.6%2023-09-20independentSource ↗
Nemotron 3 Super77%2023-03-16independentSource ↗
GPT-483.1%2023-03-14vendor-reportedSource ↗
PaLM 540B65.2%2022-10-17independentSource ↗
Codex (code-davinci-002)73.9%2022-10-17independentSource ↗

Human Baseline & Difficulty Horizon

Calibrated human reference points, specialist benchmarks, and ceiling thresholds.
Measured Human Score84.3%Domain Expert Baseline
Baseline Protocol & Interpretation

Human performance across the 23 hardest algorithmic and multi-step deduction subsets.

Metric & Scoring Methodology

Verification protocols, aggregation formulas, and specialized metric variants.
Primary Metric:exact-match accuracy, averaged over 23 tasks (%)
Scoring Engine:exact-match

Dataset & Compute Cost

Evaluation volume, public availability, API pricing, and local hardware requirements.
Total Dataset Size6,511Annotated evaluation items
Public Test SetPublicOpenly mirrored on repositories
Access GatingOpen AccessUnrestricted download
Evaluation LicenseOpen AccessDataset usage and redistribution terms
Frontier API Compute Cost:

$5 – $20 USD for full benchmark evaluation run on frontier APIs.

Recommended Local GPU Setup:

1x NVIDIA RTX 4090 (24GB) or A100 (40GB/80GB) via vLLM / SGLang

Official Dataset & Benchmark Files:Download / View Dataset Repository ↗

How to Run & Reproduce

Standardized evaluation protocols, CLI commands, and reproducible runner templates.
Prompt Regimezero-shot
Reasoning Modedirect
Sampling Temp0
Pass@k Budgetk = 1
Tools & SandboxPure Text
Scoring Verifierexact-match
Option AEleutherAI LM-Evaluation-Harness (Open-Weight Models)
lm_eval --model hf --model_args pretrained=<model_path> --tasks big-bench-hard --batch_size auto
Option BOpenCompass Evaluation Framework
opencompass --datasets big-bench-hard --models <model_config>
Python APIDeterministic Inference Loop Snippet
# Standard API Evaluation Loop
from openai import OpenAI

client = OpenAI()
response = client.chat.completions.create(
    model="gpt-4o",
    messages=[{"role": "user", "content": prompt}],
    temperature=0.0,
)
Standardized Reporting Requirement:

When publishing results for BIG-Bench Hard, always report the exact prompt template, few-shot exemplar ordering, sampling temperature (temperature=0), maximum reasoning budget tokens, and the precise timestamped model snapshot ID.

Contamination & Memorization Analysis

Audit of pretraining exposure risks, memorization vectors, and refresh policies.
Overall Contamination Risk:HIGH
Refresh Cadence:

Static fixed snapshot

Test Set Exposure:

Public on web / HuggingFace