OpenAI: GPT-5.1-Codex-Max
OpenAI: GPT-5.1-Codex-Max at $3.44/1M tokens blended - and ranks #158 of 291 by average real OpenRouter usage share over the trailing 35-day window (0.00%).
- Quality (Intelligence Index) - -
- Coding index - -
- Agentic index - -
- Price (blended $/1M) - 3.44
- Context window - 400,000
- Usage rank - #158 of 291
- Providers - 0
- Open/closed - closed
Frequently asked questions
What is OpenAI: GPT-5.1-Codex-Max's quality score?
OpenAI: GPT-5.1-Codex-Max does not yet have a published Artificial Analysis benchmark score.
How much does OpenAI: GPT-5.1-Codex-Max cost?
OpenAI: GPT-5.1-Codex-Max costs $3.44 per 1M tokens (blended 75% prompt / 25% completion pricing).
Is OpenAI: GPT-5.1-Codex-Max widely used?
OpenAI: GPT-5.1-Codex-Max ranks #158 of 291 models by average real OpenRouter usage share, averaging 0.00% of classified token volume over the trailing 35-day window.
Is OpenAI: GPT-5.1-Codex-Max open-weight or closed?
OpenAI: GPT-5.1-Codex-Max is a closed-weight model.
Source: OpenRouter (openrouter.ai/rankings), as of August 9, 2026.
Benchmark scores: Artificial Analysis (artificialanalysis.ai) via OpenRouter (openrouter.ai/rankings).
Methodology: smophy.ai/benchmark/methodology
Token counts originate from each provider's own tokenizer and are not directly comparable across providers.