OpenAIproprietary
Released: 2026-08-07

GPT-5

OpenAI generational flagship unifying high-speed inference with deep test-time verification architectures.

Intelligence Index
93.8/ 100
Calibrated multi-domain composite
Throughput Speed
85tok/sec
Output streaming throughput
Time To First Token
380ms
Initial chunk server latency
LiveBench Contam-Free
82.0%
September 2026 suite score

LiveBench Multi-Domain Evaluation Breakdown

Monthly refreshed contamination-free test sets
Logical Reasoning94.8%
Coding & Repo Repair84.5%
Mathematics (AIME)94.0%
Data Analysis & Tables88.5%
Language & Comprehension91.0%
Instruction Following95.5%

Sourced Benchmark Evaluations (4)

Verified performance across authoritative benchmarks with provenance tracking.
BenchmarkStatusScoreTrustDateSource TypeProvenance
ARC-AGI-2Nearing Saturation73.9%
75
2026-09-04independentSource ↗
SWE-bench VerifiedSaturated64.2%
25
2026-08-16independentSource ↗
IFEvalDeprecated95.5%
25
2026-08-11independentSource ↗
Humanity's Last ExamActive25.3%
90
2024-06-01independentSource ↗
OpenAI Compatible API ExecutionAPI Ready
from openai import OpenAI

client = OpenAI()
response = client.chat.completions.create(
    model="gpt-5",
    messages=[{"role": "user", "content": "Evaluate multi-step logic problem"}],
    temperature=0.2
)
print(response.choices[0].message.content)

Evaluation & Sourcing Notes

Scores listed for GPT-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.