OpenAI: GPT-5.1 (openai/gpt-5.1) costs $1.25 per 1M prompt tokens and $10 per 1M completion tokens, has a 400,000-token context window, and supports tool calling, structured outputs, reasoning and response format. Data updated 2026-10-30.
- Prompt price
- $1.25 / 1M tokens
- Completion price
- $10 / 1M tokens
- Context
- 400,000 tokens
- Input modalities
- image, text, file
- Output modalities
- text
- Tokenizer
- GPT
- Instruct type
- —
- Knowledge cutoff
- —
- Hugging Face
- —
Last price change: 2025-11-14
GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive reasoning...
Price history
No price changes recorded