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Claude Sonnet 5

ANTHROPIC Developer Architecture Profile

OpenRouter ↗HuggingFace ↗
Intelligence (ELO)1588Chatbot Arena Verified
Max Context1,000,000Tokens
API Cost / 1M$12.00Blended Prompt + Completion

Model Capabilities

  • Fictional
  • Reasoning
  • Agentic
  • Top Tier
  • Coding & Logic
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...

Granular Pricing Matrix

Input Tokens (Prompt)$2.00 / 1M
Output Tokens (Completion)$10.00 / 1M

Pricing data via OpenRouter. Sync: 6/30/2026

Evaluate Competitors

VS Engine MatchupClaude Sonnet 5 vs DeepSeek: DeepSeek V4 ProVS Engine MatchupClaude Sonnet 5 vs xAI: Grok 4.3VS Engine MatchupClaude Sonnet 5 vs DeepSeek: DeepSeek V3.2VS Engine MatchupClaude Sonnet 5 vs xAI: Grok Build 0.1VS Engine MatchupClaude Sonnet 5 vs Anthropic: Claude Fable 5VS Engine MatchupClaude Sonnet 5 vs OpenAI: GPT-5.5 Pro