OpenAI: GPT-5.1 Chat
OpenAI: GPT-5.1 Chat is a text model from Openai, with a 128K-token context window, priced at $1.25 in · $10.00 out / 1M. On Fully Informed you can add OpenAI: GPT-5.1 Chat to a multi-model panel, where it answers independently, debates the other models and gets cross-checked for blind spots.
Vendor OpenaiType Text128K contextPrice $1.25 in · $10.00 out / 1M
Put OpenAI: GPT-5.1 Chat on the panel →
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...
Related text models
OpenAI: GPT-3.5 Turbo$0.50 in · $1.50 out / 1MOpenAI: GPT-3.5 Turbo (older v0613)$1.00 in · $2.00 out / 1M
Anthropic: Claude Fable Latest$10.00 in · $50.00 out / 1MAnthropic Claude Haiku Latest$1.00 in · $5.00 out / 1MAnthropic: Claude Opus Latest$5.00 in · $25.00 out / 1MAnthropic Claude Sonnet Latest$2.00 in · $10.00 out / 1MFAQ
- What is 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...
- What is the context window of OpenAI: GPT-5.1 Chat?
- OpenAI: GPT-5.1 Chat supports a 128K-token context window.
- How much does OpenAI: GPT-5.1 Chat cost?
- OpenAI: GPT-5.1 Chat is priced at $1.25 in · $10.00 out / 1M via OpenRouter.
- What are alternatives to OpenAI: GPT-5.1 Chat?
- Comparable text models include OpenAI: GPT-3.5 Turbo, OpenAI: GPT-3.5 Turbo (older v0613), Anthropic: Claude Fable Latest, Anthropic Claude Haiku Latest.
Model data via OpenRouter. Browse all models · Run a panel on Fully Informed