Anthropic Ships Sonnet 5 With Agentic Safety and Pricing Details
1 July 20265 min read
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OpenAI released GPT-5.1, including GPT-5.1 Instant and GPT-5.1 Thinking, with a focus on more conversational behaviour and better customization.
For developers, OpenAI also described faster adaptive reasoning, extended prompt caching and coding improvements in the API.
The release continued the shift from single headline benchmarks toward controllability, latency, cost and developer workflow fit.
Why It Matters
Model updates increasingly compete on usability and economics, not only raw capability.
What to Watch
Watch migration patterns from GPT-5, developer adoption of extended caching and whether GPT-5.1 changes agent reliability.
Primary Sources
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Topics
OpenAIGPT-5.1ChatGPTAI Models