GPT-5.1

3 rows in The Deploy Log from 2 companies name GPT-5.1: OpenAI and Vercel. Newest first, each linking the publisher's own page.

GPT-5.1 for developers

GPT-5.1 is available on all paid API tiers with pricing and rate limits the same as GPT-5, plus gpt-5.1-codex and gpt-5.1-codex-mini.

OpenAI | In Edition 9, Saturday 15 Nov 2025

SOURCE OpenAI, Introducing GPT-5.1 for developers

GPT-5.1 on AI Gateway

Vercel AI Gateway now serves GPT-5.1 Instant and GPT-5.1 Thinking with no other provider accounts required.

Vercel | Tools and products | In Edition 9, Saturday 15 Nov 2025

SOURCE Vercel, GPT-5.1 models now available in Vercel AI Gateway

GPT-5.1 Instant and Thinking roll out to all users, with warmer tone, adaptive reasoning, and faster simple tasks. API release includes no-reasoning mode, 24-hour prompt caching, and new apply_patch and shell tools.

OpenAI | Models and APIs | Published Wednesday 12 Nov 2025

SOURCE OpenAI, GPT-5.1: A smarter, more conversational ChatGPT

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