How much does Claude Sonnet 4.6 cost?

Claude Sonnet 4.6 costs $3 per million input tokens and $15 per million output tokens. The blended average is $9.00 per million tokens.

What is the context window of Claude Sonnet 4.6?

Claude Sonnet 4.6 supports a context window of 1000K tokens (1,000,000 tokens) and can generate up to 64K output tokens per request.

What is Claude Sonnet 4.6 best for?

Claude Sonnet 4.6 is best for: Coding & balance. It supports chat, vision, function_calling, code, reasoning capabilities.

Claude Sonnet 4.6 — Pricing, Benchmarks & Specs

Claude Sonnet 4.6

Anthropicbalanced

Anthropic's Feb 17 2026 balanced model. Near-Opus performance at Sonnet pricing — SWE-bench Verified 79.6%, OSWorld 72.5%, 1M context. Best price-to-performance in the Claude lineup.

Context Window

tokens

Max Output

64K

tokens

Input Price

per 1M tokens

Output Price

$15

per 1M tokens

Speed

tokens/sec

Released

Feb 2026

2026-02-17

Blended Cost

$9.00

per 1M tokens

Value Score

10.0

quality per $

Capabilities

ChatVisionFunction CallingCode GenerationReasoning

Benchmarks

Quality Index

MMLU Pro

88.4

HumanEval (Coding)

93.1

MATH

85.6

Arena ELO

1467

Try in Playground Use via Swfte Connect Anthropic Docs

Compare With

Claude Opus 4

Quality: 91·$45.00/1M

About Claude Sonnet 4.6

Claude Sonnet 4.6 is a balanced AI model by Anthropic, released on February 17, 2026. It supports a context window of 1000K tokens and can generate up to 64K output tokens.

At $3 per million input tokens and $15 per million output tokens, its blended cost of $9.00/1M tokens places it in the premium pricing tier. Its value score of 10.0 reflects the balance of quality and cost.

Using Claude Sonnet 4.6 with Swfte

Access Claude Sonnet 4.6 through Swfte Connect, our unified LLM gateway. Connect gives you a single API for 50+ models, with automatic routing, cost optimization, and fallback handling. You can also try Claude Sonnet 4.6 in our AI Playground before integrating.