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openai
OpenAI: GPT-5.1 Chat
openai/gpt-5.1-chat
GPT-5.1 Chat (AKA Instant is the fast, lightweight member of the 5.1 family, optimized for low-latency chat while retaining strong general intelligence. It uses adaptive reasoning to selectively “think” on...
specs & pricing
- Type
- text
- Provider
- openai
- Model ID
- openai/gpt-5.1-chat
- Capabilities
- vision, tools
- Context window
- 128K tokens
- Input price
- $1.38 / 1M tokens
- Output price
- $11.00 / 1M tokens
Cloud price is billed from prepaid credits when a request fails over to the cloud. Open-weight models run free on GPUs you own — the gateway routes to your nodes first.