Claude Sonnet 4.6

Name: Claude Sonnet 4.6
Author: Anthropic

Claudev4.6Current

Anthropic(ai lab)

Released February 17, 2026

API Docs Playground

Context1M tokens

Price (In / Out)$3.00/M / $15.00/M

CategoryMultimodal LLM

Max Output128K tokens

About Claude Sonnet 4.6

Claude Sonnet 4.6 is a multimodal llm from Anthropic. Supports up to 1,000,000 token context window. Achieves 88.0% on MMLU. Available from $3.00/M input tokens.

Capabilities

textvisioncodetool use

Input Modalities

textimage

Output Modalities

text

Technical Details

API Identifier: anthropic/claude-sonnet-4.6
Category: Multimodal LLM
Context Window: 1,000,000 tokens
Max Output Tokens: 128,000 tokens

Benchmarks

Performance scores for Claude Sonnet 4.6 across standard benchmarks.

MMLUAnthropic · Feb 2026

86.7

GPQA DiamondAnthropic · Feb 2026

89.9

SWE-bench VerifiedAnthropic · Feb 2026

72.5

Terminal-Bench 2.0Anthropic · Feb 2026

MATH 500Anthropic · Feb 2026

54.2

LiveCodeBenchAnthropic · Feb 2026

41.5

Berkeley Function CallingAnthropic · Feb 2026

88.3

HLEOpenRouter · Feb 2026

GPQA-AA EloArtificial Analysis · Feb 2026

1674

GPQA DiamondArtificial Analysis

79.9%

Pricing

Token pricing for Claude Sonnet 4.6 API usage.

Input Tokens

$3.00/M

per million tokens

Output Tokens

$15.00/M

per million tokens

Cache read: $0.3000/M tokens

Anthropicai lab

Building reliable, interpretable, and steerable AI systems

8 Tools3 MCP Servers7 ModelsFounded 2021San Francisco, CA

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Model	Context Window	Price (In / Out per M)	Capabilities
Claude Fable 5.1Current	1.0M	$10.00 / $50.00	textvisionreasoningcoding+4
Claude Opus 5Current	1.0M	$5.00 / $25.00	textvisionreasoningcoding+3
Claude Sonnet 5Current	1.0M	$2.00 / $10.00	textvisionreasoningcoding+3
Claude Fable 5Current	1.0M	$10.00 / $50.00	textvisionreasoningcoding+3
Claude Opus 4.7Current	1.0M	$5.00 / $25.00	textvisioncodetool use
Claude Opus 4.6Current	1.0M	$5.00 / $25.00	textvisioncodetool use