Anthropicproprietary
Released: 2026-06-01Claude Haiku 5.5
Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding, computer use, and...
Intelligence Index
81.0/ 100
Calibrated multi-domain compositeThroughput Speed
130tok/sec
Output streaming throughputTime To First Token
280ms
Initial chunk server latencyLiveBench Contam-Free
71.3%
September 2026 suite scoreLiveBench Multi-Domain Evaluation Breakdown
Monthly refreshed contamination-free test setsLogical Reasoning74.5%
Coding & Repo Repair72.9%
Mathematics (AIME)72.1%
Data Analysis & Tables68.9%
Language & Comprehension70.5%
Instruction Following71.3%
Sourced Benchmark Evaluations (61)
Verified performance across authoritative benchmarks with provenance tracking.| Benchmark | Status | Score | Trust | Date | Source Type | Provenance |
|---|---|---|---|---|---|---|
| ARC-AGI-3 | Active | 51.1% | 93 | 2026-07-06 | independent | Source ↗ |
| ARC-AGI-2 | Nearing Saturation | 61.3% | 75 | 2026-06-29 | independent | Source ↗ |
| FrontierMath | Active | 21.1% | 98 | 2026-06-26 | independent | Source ↗ |
| PutnamBench | Active | 39.2% | 90 | 2026-06-25 | independent | Source ↗ |
| SWE-Lancer | Deprecated | 52.4% | 20 | 2026-06-23 | independent | Source ↗ |
| Omni-MATH | Deprecated | 55.7% | 10 | 2026-06-23 | independent | Source ↗ |
| Soohak | Active | 57.2% | 98 | 2026-06-21 | independent | Source ↗ |
| FrontierCode | Active | 44.7% | 98 | 2026-06-21 | independent | Source ↗ |
| Humanity's Last Exam | Active | 34.6% | 93 | 2026-06-19 | independent | Source ↗ |
| StructFlowBench | Nearing Saturation | 60.6% | 75 | 2026-06-19 | independent | Source ↗ |
| AIME | Nearing Saturation | 71.5% | 75 | 2026-06-19 | independent | Source ↗ |
| OlympiadBench | Active | 61.7% | 80 | 2026-06-18 | independent | Source ↗ |
| MathArena | Active | 60.2% | 99 | 2026-06-17 | independent | Source ↗ |
| FireBench | Active | 59.9% | 95 | 2026-06-17 | independent | Source ↗ |
| Terminal-Bench | Active | 53.9% | 80 | 2026-06-17 | independent | Source ↗ |
| OpenAI-MRCR | Active | 68% | 80 | 2026-06-16 | independent | Source ↗ |
| SimpleQA | Active | 42.1% | 90 | 2026-06-16 | independent | Source ↗ |
| CodeContests | Deprecated | 50.1% | 10 | 2026-06-16 | independent | Source ↗ |
| ComplexBench | Nearing Saturation | 58.5% | 80 | 2026-06-15 | independent | Source ↗ |
| SWE-bench Pro | Active | 47.7% | 90 | 2026-06-15 | independent | Source ↗ |
| LongBench-Pro | Active | 66.4% | 80 | 2026-06-15 | independent | Source ↗ |
| ZeroSCROLLS | Nearing Saturation | 64.8% | 78 | 2026-06-14 | independent | Source ↗ |
| MultiPL-E | Deprecated | 70.8% | 10 | 2026-06-14 | independent | Source ↗ |
| LiveCodeBench | Saturated | 63.1% | 39 | 2026-06-13 | independent | Source ↗ |
| AgentIF | Nearing Saturation | 48.5% | 80 | 2026-06-13 | independent | Source ↗ |
| MATH | Saturated | 73.8% | 25 | 2026-06-13 | independent | Source ↗ |
| InfiniteBench | Nearing Saturation | 68.9% | 65 | 2026-06-13 | independent | Source ↗ |
| Mercury | Deprecated | 67.8% | 10 | 2026-06-12 | independent | Source ↗ |
| SCROLLS | Nearing Saturation | 64.8% | 65 | 2026-06-12 | independent | Source ↗ |
| MMLU-Pro | Nearing Saturation | 74.5% | 75 | 2026-06-12 | independent | Source ↗ |
| RULER | Nearing Saturation | 74.5% | 84 | 2026-06-11 | independent | Source ↗ |
| TabMWP | Saturated | 69.3% | 25 | 2026-06-11 | independent | Source ↗ |
| CyberSecEval | Deprecated | 69.3% | 10 | 2026-06-11 | independent | Source ↗ |
| SWE-bench Verified | Saturated | 60.1% | 25 | 2026-06-10 | independent | Source ↗ |
| MMLU-Redux | Saturated | 79.4% | 25 | 2026-06-10 | independent | Source ↗ |
| QuALITY | Nearing Saturation | 71.3% | 78 | 2026-06-10 | independent | Source ↗ |
| LongBench | Nearing Saturation | 69.7% | 65 | 2026-06-09 | independent | Source ↗ |
| SWE-bench | Deprecated | 52.4% | 10 | 2026-06-09 | independent | Source ↗ |
| MGSM | Nearing Saturation | 71.5% | 65 | 2026-06-09 | independent | Source ↗ |
| AGIEval | Saturated | 67.6% | 25 | 2026-06-08 | independent | Source ↗ |
| QASPER | Nearing Saturation | 67.2% | 65 | 2026-06-08 | independent | Source ↗ |
| TruthfulQA | Saturated | 71.3% | 25 | 2026-06-08 | independent | Source ↗ |
| GSM-Hard | Deprecated | 72.3% | 10 | 2026-06-07 | independent | Source ↗ |
| SuperGLUE | Saturated | 80.2% | 25 | 2026-06-07 | independent | Source ↗ |
| CodeXGLUE | Deprecated | 72.4% | 23 | 2026-06-06 | independent | Source ↗ |
| MT-Bench | Nearing Saturation | 7.3% | 75 | 2026-06-06 | independent | Source ↗ |
| BIG-Bench Hard | Saturated | 77% | 25 | 2026-06-06 | independent | Source ↗ |
| WinoGrande | Saturated | 81.7% | 28 | 2026-06-05 | independent | Source ↗ |
| MBPP+ | Nearing Saturation | 78.5% | 65 | 2026-06-05 | independent | Source ↗ |
| IFEval | Deprecated | 69.9% | 25 | 2026-06-05 | independent | Source ↗ |
| GPQA | Nearing Saturation | 71.3% | 78 | 2026-06-05 | independent | Source ↗ |
| Needle-in-a-Haystack | Saturated | 96.2% | 44 | 2026-06-04 | independent | Source ↗ |
| HumanEval+ | Saturated | 83.2% | 25 | 2026-06-04 | independent | Source ↗ |
| CommonsenseQA | Saturated | 82.5% | 28 | 2026-06-04 | independent | Source ↗ |
| MBPP | Saturated | 81.6% | 25 | 2026-06-03 | independent | Source ↗ |
| GSM8K | Saturated | 81.3% | 25 | 2026-06-03 | independent | Source ↗ |
| GLUE | Saturated | 84.9% | 28 | 2026-06-03 | independent | Source ↗ |
| MMLU | Saturated | 82.6% | 25 | 2026-06-02 | independent | Source ↗ |
| HumanEval | Saturated | 87.8% | 25 | 2026-06-02 | independent | Source ↗ |
| ARC-AGI | Saturated | 73.9% | 25 | 2026-06-02 | independent | Source ↗ |
| LiveBench (Continuous) | Active | 71.3% | 94 | 2025-02-01 | independent | Source ↗ |
Anthropic Python SDKAPI Ready
import anthropic
client = anthropic.Anthropic()
message = client.messages.create(
model="anthropic-claude-haiku-5-5",
max_tokens=2048,
temperature=0,
messages=[{"role": "user", "content": "Execute SWE-bench verified repository fix"}]
)
print(message.content[0].text)Evaluation & Sourcing Notes
Scores listed for Claude Haiku 5.5 represent verified evaluations extracted from official research papers, independent evaluation suites (HELM, LMSYS, OpenCompass, LiveBench), and verified audit reports.
All benchmarks marked as saturated or deprecated reflect historical performance where the benchmark no longer provides active discriminative power.