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GPT-5.1 Medium
🇺🇸OpenAI8mo
Context:400K tokens
Input:$1.25/1M
Output:$10/1M
Neura Index
82.1
Rank #16—
lowCategory Profile
Benchmark Scores (1)
math
| Benchmark | Score | Source |
|---|---|---|
| AIME 2025 | 98.4 | verified |
Performance History
Similar Models
Frequently Asked Questions about GPT-5.1 Medium
What is GPT-5.1 Medium's Neura Intelligence Index score?▾
GPT-5.1 Medium by OpenAI scores 82.1 out of 100 on the Neura Intelligence Index, ranking #16 among tracked AI models. This composite score is computed from 1 individual benchmarks across coding, math, reasoning, and language categories.
How much does GPT-5.1 Medium cost to use?▾
GPT-5.1 Medium costs $1.25/1M input tokens and $10/1M output tokens via API. At a typical 3:1 input-to-output ratio with 1M tokens/day usage, the estimated monthly cost is approximately $103.
Is GPT-5.1 Medium open source?▾
No, GPT-5.1 Medium is a proprietary model by OpenAI. It is only accessible via their API.
What is GPT-5.1 Medium's context window?▾
GPT-5.1 Medium supports a context window of 400K tokens, allowing it to process very long documents, codebases, and conversations in a single request.
What benchmark does GPT-5.1 Medium perform best on?▾
GPT-5.1 Medium achieves its highest score on AIME 2025 with a score of 98.4%. This benchmark evaluates american invitational mathematics examination 2025 — competition-level math problems.