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Claude Sonnet 4

Anthropic

Claude Sonnet 4 by Anthropic costs — per 1M input tokens and — per 1M output tokens, with a —-token context window.

Pricing

Input (per 1M tokens)
—
Output (per 1M tokens)
—
Cached input (per 1M)
—

Specifications

Provider
Anthropic
Context window
—
Parameters
—
Released
May 2025
Open weights
No
Frontier model
No

Benchmarks

Aider Polyglot
61.3

Compare Claude Sonnet 4 with…

Claude Sonnet 4 vs DeepSeek V3.1 Terminus$1.00/1MClaude Sonnet 4 vs Qwen2.5 Coder 32B Instruct$1.00/1MClaude Sonnet 4 vs Nemotron 3 Super 120B A12B$1.00/1MClaude Sonnet 4 vs MiniMax M2$1.02/1MClaude Sonnet 4 vs MiniMax M2.5$0.95/1MClaude Sonnet 4 vs DeepSeek V3.1$0.95/1M

FAQ

How much does Claude Sonnet 4 cost?

Claude Sonnet 4 is priced at — per 1M input tokens and — per 1M output tokens. Output tokens cost more than input.

What is Claude Sonnet 4's context window?

Claude Sonnet 4 supports a context window of — tokens — the maximum prompt plus response length it can handle in a single request.

Is Claude Sonnet 4 open weight?

No — Claude Sonnet 4 is a closed/proprietary model accessed via API.

Data as of 2026-10-16. Source: Epoch AI, Data on AI Models (CC BY 4.0), epoch.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.