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Claude Sonnet 5

Reviewed 2026-07-12
Anthropicanthropic/claude-sonnet-5
Context
1M
Price
$2/$10
Tooling
5/5
Deploy
Cloud API

Best for

  • Agentic workflows and tool calling
  • Writing and editing code
  • Complex reasoning and analysis
  • Long documents (~1M context)

Skip if

  • You need open weights to self-host

Capability scores

Tool calling5/5
Multi-step reasoning5/5

Specifications

Context window
1M tokens
VRAM
N/A (cloud-hosted)
License
proprietary
Pricing
$2/M input · $10/M output
Deployment
Cloud API

Our take

Claude Sonnet 5 from Anthropic offers a 1M-token context window and is well-suited to strong tool calling, multi-step reasoning, coding, long-context work. Pricing is $2/M input · $10/M output, billed per token through the provider API.

Watch for the trade-offs: weights are closed, so you cannot self-host.

Compare to

Claude Fable 5
Anthropic
1M context · $10/M input · $50/M output
Claude Opus 4.8
Anthropic
1M context · $5/M input · $25/M output
Claude Sonnet 4.6
Anthropic
1M context · $3/M input · $15/M output
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