Anthropic's Claude Opus 4.1 achieves 74.5% on coding benchmarks, leading the AI market, but faces risk as nearly half its $3.1B API revenue depends on just two customers.

Claude Opus 4.1 not with fireworks, but with unmistakable intent. It arrives just as OpenAI is expected to drop GPT-5 (a ...

Anthropic says it has revoked OpenAI's access to the Claude API after ChatGPT's engineers were found using Claude's coding ...

An OpenAI spokesperson said the API access allowed for industry-standard benchmarking and safety improvements.

Anthropic launches automated AI security tools for Claude Code that scan code for vulnerabilities and suggest fixes, ...

OpenAI’s new algorithms, gpt-oss-120b and gpt-oss-20b, are available under an open-source license. Anthropic, for its part, ...

Reportedly, Anthropic has restricted OpenAI from accessing the Claude API after noticing an apparent breach of the terms of ...

Anthropic is releasing a new version of its most powerful artificial intelligence model as rival OpenAI nears the ...

Two early testers of the new model told Reuters they have been impressed with its ability to code and solve science and math problems, but they believe the leap from GPT-4 to GPT-5 is not as large as ...

Anthropic, on Tuesday, announced a new version of its AI model, the Claude Opus 4.1, just as rival OpenAI is getting close to ...

OpenAI  has lost its access to the Claude API, just before the GPT 5 launch. The primary reason  behind this sudden move is ...

OpenAI was connecting Claude to internal tools that allowed the company to compare Claude’s performance to its own models in ...