Claude Sonnet 4.6 specs, prices, where it runs and its benchmark standing

Name: Claude Sonnet 4.6
Author: Anthropic

closed weights · #44 overall, podium score 0.7 · top 10 on 1 of 11 · released Feb 17, 2026

Provider: Anthropic
Release date: Feb 17, 2026; Boards
Parameters: Not disclosed by Anthropic
Modalities: Text, Image, Files to Text; OpenRouter
License: Proprietary; LMArena
Context window: 1M tokens; Pricing
Pricing: $3 in / $15 out per 1M tokens; All prices
Hosting: 11 priced API routes · AWS Bedrock (33 regions) · OpenRouter; Pricing Regions
Weights: Closed weights
Benchmarks: 11 boards captured, #44 overall

Rank	Board	Category	Score	Of
10	Document ArenaVision · as “Claude Sonnet 4.6”	Vision	1,478	40
17	Search ArenaAgents and tools · as “Claude Sonnet 4.6 (Search)”	Agents and tools	1,201	40
26	MCP AtlasAgents and tools · as “claude-sonnet-4-6”	Agents and tools	69.5%	37
27	Vision ArenaVision · as “Claude Sonnet 4.6”	Vision	1,275	85
34	ARC-AGI-2Reasoning · as “Claude Sonnet 4.6 (High)”	Reasoning	60.4%	92
40	Text ArenaChat · as “Claude Sonnet 4.6”	Chat	1,472	84
45	LiveBenchReasoning · as “claude-sonnet-4-6-thinking-auto-medium-effort”	Reasoning	73.0%	64
49	WebDev ArenaCoding · as “Claude Sonnet 4.6”	Coding	1,522	82
51	Epoch ECIReasoning · as “Claude Sonnet 4.6”	Reasoning	152.9	100
66	GPQA DiamondReasoning · as “claude-sonnet-4-6_32K”	Reasoning	87.4%	100
12	MMLU-ProReasoning · stale since 2026-03-11 · as “Claude-4.6-Sonnet(Thinking)”	Reasoning	87.3%	100

Versions and release history

7 versions in this line since Feb 24, 2025, from Pricing, OpenRouter and the boards.

Category ranks, more models and catalog changes