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Anthropic

Claude Sonnet 4.5

The workhorse — production coding and content at mid-tier cost.

Context

200K

Max output

64K

Input /1M

$3.00

Output /1M

$15.00

Live pricing via OpenRouter

Best for

  • Standard coding and integrations
  • Content generation at scale
  • Moderate-complexity production tasks

Compare Claude Sonnet 4.5

Claude Sonnet 4.5 vs Gemini 3.5 Flash

Gemini 3.5 Flash edges ahead on agentic-coding benchmarks and cost; Claude Sonnet 4.5 remains a proven, well-integrated production workhorse.

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