O
OpenAI
gpt-5-1-codex-mini
OpenRouter priceModel overview
GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
- Context window
- 400,000 tokens
- Knowledge cutoff
- —
- Price last verified
- First observed
Descriptions, capabilities, and tariffs come from the linked source. First-party prices take priority; OpenRouter fallbacks are labelled.
Capabilities and formats
- image
- text
- include reasoning
- max completion tokens
- reasoning
- reasoning effort
- response format
- seed
- structured outputs
- tool choice
- tools
Performance references
No comparable benchmark data is currently available.
PRICE EVOLUTIONPrice history
Original observation and every later change, including any change of price source.
Original observed priceOfficial price unavailable
Input: —Cached input: —Cache write 5m: —Cache write 1h: —Output: —
Price changeOpenRouter price
Input: $0.25Cached input: $0.03Cache write 5m: —Cache write 1h: —Output: $2
