Anthropic: Claude Sonnet 4

Anthropic

Anthropic: Claude Sonnet 4 by Anthropic costs $3.00 per 1M input tokens and $15.00 per 1M output tokens, with a 200K-token context window.

Pricing

Input (per 1M tokens)

$3.00

Output (per 1M tokens)

$15.00

Cached input (per 1M)

$0.30

Specifications

Provider: Anthropic
Context window: 200K tokens
Parameters: —
Released: May 2025
Open weights: No
Frontier model: No

Benchmarks

Epoch Capabilities Index: 141.7
FrontierMath: 4.1
GPQA Diamond: 78.3
LMArena (Chatbot Arena) Elo: 1350.8
LMArena Vision Elo: 1191.1
SWE-bench Verified: 76.8

Speed & latency

Time to first token

1.20s

Output speed

81 tok/s

Fastest host: bedrock (via vercel-ai-gateway).

Compare Anthropic: Claude Sonnet 4 with…

Anthropic: Claude Sonnet 4 vs chatgpt-4o-latest$15.00/1M Anthropic: Claude Sonnet 4 vs Kimi K3$15.00/1M Anthropic: Claude Sonnet 4 vs GPT-5.4$15.00/1M Anthropic: Claude Sonnet 4 vs Claude Sonnet 4.5$15.00/1M Anthropic: Claude Sonnet 4 vs Claude Sonnet 4.6$15.00/1M Anthropic: Claude Sonnet 4 vs Claude Sonnet 4.6 Thinking$15.00/1M

FAQ

How much does Anthropic: Claude Sonnet 4 cost?

Anthropic: Claude Sonnet 4 is priced at $3.00 per 1M input tokens and $15.00 per 1M output tokens. Output tokens cost more than input.

What is Anthropic: Claude Sonnet 4's context window?

Anthropic: Claude Sonnet 4 supports a context window of 200K tokens — the maximum prompt plus response length it can handle in a single request.

Is Anthropic: Claude Sonnet 4 open weight?

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

Data as of 2026-10-15. Source: Pricing via OpenRouter API, openrouter.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.