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Claude Sonnet 4 now supports 1M tokens of context

12 days ago
https://www.anthropic.com/news/1m-context
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  • #AI
  • #Claude Sonnet 4
  • #Long Context
  • Claude Sonnet 4 now supports up to 1 million tokens of context, a 5x increase.
  • Long context support is in public beta on Anthropic API and Amazon Bedrock, with Google Cloud’s Vertex AI coming soon.
  • Enables large-scale code analysis, document synthesis, and context-aware agents.
  • Pricing adjusts for prompts over 200K tokens: $3/MTok (≤200K input), $6/MTok (>200K input), $15/MTok (≤200K output), $22.50/MTok (>200K output).
  • Prompt caching and batch processing can reduce costs and latency.
  • Customer spotlight: Bolt.new uses Claude Sonnet 4 for code generation with high accuracy on larger projects.
  • Customer spotlight: iGent AI's Maestro leverages 1M token context for autonomous software engineering capabilities.
  • Available in public beta for Tier 4 and custom rate limit customers on Anthropic API, with broader availability coming soon.
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