Anthropic has upgraded Claude Sonnet 4 with a 1M token context window, competing with OpenAI's GPT-5 and Meta's Llama 4.

Anthropic's popular coding model just became a little more enticing for developers with a million-token context window.

The company today revealed that Claude Sonnet 4 now supports up to 1 million tokens of context in the Anthropic API — a five-fold increase over the previous limit.

Anthropic’s developers recently upgraded the AI model Claude Sonnet 4 to support up to 1 million tokens of context, thereby ...

Claude Sonnet 4 can now support up to one million tokens of context, marking a fivefold increase from the prior 200,000, ...

Anthropic upgrades Claude Sonnet 4 to a 1M token context window and adds memory, enabling full codebase analysis, long ...

Anthropic has expanded the capabilities of its Claude Sonnet 4 AI model to handle up to one million tokens of context, five ...

The new context window is available today within the Anthropic API for certain customers — like those with Tier 4 and custom ...

Claude Opus 4 excels at coding and complex problem-solving, whereas Claude Sonnet 4 improves on Sonnet 3.7 and balances performance and efficiency.

Google and Anthropic are racing to add memory and massive context windows to their AIs right as new research shows that ...

Claude 4, especially in its Sonnet form, stands out for its natural, thoughtful tone. It often feels more like a helpful assistant offering clear explanations, thoughtful suggestions and a calm ...