Model
claude-opus-4.1
Claude Opus 4.1, shipped in August 2025 at the same price as Opus 4, was an incremental update aimed at coding and agentic tasks, with Anthropic reporting 74.5% on SWE-bench Verified. The company framed it explicitly as a stopgap and promised "substantially larger" gains within weeks, signalling the faster cadence of small, frequent Opus updates that followed through the rest of the year.
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- Safety & alignment 2
- Benchmarks & progress 2
- Compute & infrastructure 1
- Money & business 1
- Models & capabilities 1
Microsoft and Nvidia to invest up to $15bn combined in Anthropic; Anthropic commits $30bn to Azure
The deal added Azure as a third cloud for Claude alongside AWS and Google Cloud, with Anthropic committing to buy up to a gigawatt of Nvidia Grace Blackwell and Vera Rubin compute.
Compute & infrastructure · Money & business
Anthropic publishes 'Emergent Introspective Awareness in Large Language Models'
Using concept injection, Anthropic finds Claude Opus 4 and 4.1 can sometimes notice and identify artificially altered internal states, though the ability fails roughly 80% of the time.
Safety & alignment
OpenAI publishes GDPval, a benchmark for economically valuable knowledge work
Blind grading by industry professionals rated GPT-5 and Claude Opus 4.1 outputs as equal to or better than human work on nearly half of the 1,320 tasks.
Benchmarks & progress
Scale AI launches SWE-bench Pro
The leading models scored around 23%, against over 70% on the older SWE-bench Verified, a gap Scale AI attributed to unseen, real-world commercial codebases.
Benchmarks & progress
Anthropic lets Claude end abusive conversations
The feature is a last resort after redirection fails; Claude cannot use it if a user appears at risk of self-harm, and the user can still start a fresh conversation immediately.
Safety & alignment
Anthropic ships Claude Opus 4.1
Anthropic reported 74.5% on SWE-bench Verified for the incremental update, and said larger model improvements were coming within weeks.
Models & capabilities