GPT-5.1-Codex-Mini pricing & benchmarks
Released Nov 13, 2025 · served by 2 providers
What GPT-5.1-Codex-Mini is
GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
- Model ID:
openai/gpt-5.1-codex-mini - Modality: text+image->text
- Tool calling: supported · Structured output: supported
Providers and prices for GPT-5.1-Codex-Mini
The same model costs different amounts depending on who serves it. Prices are per 1M tokens, cheapest first. Uptime and throughput are OpenRouter's rolling measurements, not vendor claims.
| Provider | Input | Output | Context | Quant | Uptime 24h | Throughput |
|---|---|---|---|---|---|---|
| OpenAIcheapest | $0.250 | $2.00 | 400K | — | 0.0% | — |
| Azure | $0.250 | $2.00 | 400K | — | 100.0% | — |
GPT-5.1-Codex-Mini benchmark results
Design Arena head-to-head results, as reported through the OpenRouter model API.
| Category | Arena | Rank | Elo | Win rate |
|---|---|---|---|---|
| asciiart | models | #45 | 1142 | 43% |
| gamedev | models | #69 | 1149 | 43.4% |
| svg | models | #70 | 1028 | 35.3% |
| uicomponent | models | #75 | 1117 | 41% |
| dataviz | models | #79 | 1126 | 40.7% |
| website | models | #80 | 1135 | 42.8% |
| codecategories | models | #81 | 1124 | 41.5% |
| 3d | models | #91 | 1045 | 32.8% |
FAQ
How much does the GPT-5.1-Codex-Mini API cost?
$0.250 per 1M input tokens and $2.00 per 1M output tokens. A typical workload of 1M input + 300K output tokens costs about $0.85.
Is GPT-5.1-Codex-Mini free?
No. It is a paid model starting at $0.250 per 1M input tokens, though some providers offer trial credits.
Which provider is cheapest for GPT-5.1-Codex-Mini?
OpenAI at $0.250 input / $2.00 output per 1M tokens.
Can I self-host GPT-5.1-Codex-Mini?
No. GPT-5.1-Codex-Mini is closed-weight and only available through hosted APIs.