readable AI benchmarks (simplified)
OpenAI
GPT-5.1 Codex (high)
GPT-5.1 Codex (high) has a Quality Score of 41.6, ranking 160th among 551 scored models. Per 1M tokens, pricing is $1.25 input, $10.00 output, and $0.125 cached input. It accepts text and image input, outputs text, and has a 400k token context window. Its Reliability Score is 46.8, ranking 144th among 553 scored models, above average (total average: 35.6). Its Value Score is 28.1, around average compared with the total Value average of 30.7.
Quality Score41.6coverage 100.0%: AA Intelligence and AA-Omniscience outcomes available
Value Score28.1
Factual reliability46.8
Cache Discount90%
Model specification
- Reasoning
- reasoning
- Input modalities
- text, image
- Output modalities
- text
- Context window
- 400k tokens
- Weights
- closed weights
Token prices USD per 1M tokens
- Input
- $1.25
- Output
- $10.00
- Cached Input
- $0.125
- Cache write
- not available
- Cost per task
- not available
Capability
- Intelligence
- 23.7
- Coding
- not available
- Agentic
- not available
- Omniscience
- -6.5
- Correct
- 39.9%
- Blended price
- $1.34
Answer outcomes
Fully graded outcomes (Correct + Incorrect): 86.3%
Correct 39.9%Incorrect 46.4%Partial / not attempted 13.7%
Artificial Analysis benchmarks
- Humanity’s Last Exam
- 26%
- GPQA Diamond
- 86%
- CritPt
- 6%
- AA-Omniscience
- 47%
- AA-LCR
- 69%
Similar models
- GPT-5 Codex (high)OpenAIQuality Score 42.3Value Score 28.5
- GPT-5.6 Luna (medium)OpenAIQuality Score 41.0Value Score 35.0
- GPT-5 (high)OpenAIQuality Score 40.5Value Score 27.3
- GPT-5 (medium)OpenAIQuality Score 39.9Value Score 26.9
- GPT-5.4 mini (xhigh)OpenAIQuality Score 38.8Value Score 28.6
- GPT-5.5 Instant (May 2026)OpenAIQuality Score 45.2Value Score 26.6