Claude Sonnet 4.6
Claude Sonnet 4.6Alternatives?
CheaperGemini 3.8 Flashhigh×2.5-75%*$1.24Sampling parameters are ignored+1
BetterGPT-5.6 Lunahigh+48%-93%$0.044
OpenGLM 5.3max×2.3-64%$2.01No image input+4CheaperGPT-6.1 Solmax×2.4-33%$2 / $10Remove unsupported parameters+5CheaperClaude Sonnet 5.5max×2.4-33%$2 / $10No forced tool use+5Gemini 3.8 Flashhigh×2.5-75%*$1.24Sampling parameters are ignored+1GPT-6.1 Solmax×2.4-33%$2 / $10Remove unsupported parameters+5Claude Sonnet 5.5max×2.4-33%$2 / $10No forced tool use+5GPT-6 Solmax×2.4-33%$2 / $10GPT-5.6 Terramax×2.3-25%$1.40Prompts with >272K input tokensGPT-5.6 Lunahigh+48%-93%$0.044GPT-5.6 Terramedium+17%-25%$0.18Prompts with >272K input tokensGPT-5.6 Sollow+52%+33%$0.26GLM 5.3 FlashmaxOpen×2.1-96%$0.28Defaults to max · Self-hosted+4
Grok 4.6low+39%-50%$0.38Context: 1M → 500KGLM 5.3maxOpen×2.3-64%$2.01No image input+4
Kimi K3maxOpen×2.3same$2.00Sampling parameters are fixed+3GLM 5.3 FlashmaxOpen×2.1-96%$0.28Defaults to max · Self-hosted+4
DeepSeek V4 Pro 0813maxOpen×2.1-67%$1.32 / $3.96No image input+5DeepSeek V4.1 Flash 1017maxOpen+78%-91%$0.30 / $1.20Pass back reasoning_content · Chat Completions+4Claude Opus 5high×2.4—$3.61Claude Opus 5.5max×2.4—$4 / $20No forced tool use+5Claude Sonnet 5.5max×2.4—$2 / $10No forced tool use+5Claude Fable 5high×2.3—$10 / $50Claude Opus 4.8high+73%—$5 / $25Claude Opus 4.7max+65%—$5 / $25Claude Sonnet 5high+61%—$1.79Claude Opus 4.6max+7%—$5 / $25All Anthropic models →History
7 versionsFAQ
How much does Claude Sonnet 4.6 cost?›
$3 per 1M input tokens and $15 per 1M output tokens; cached input $0.30 per 1M.
Is Claude Sonnet 4.6 free to use?›
There is no free API; the cheapest paid price is $3 per 1M input tokens.
How good is Claude Sonnet 4.6, and what is it best at?›
#70 of 334 in Chat & Knowledge, #46 of 132 in Coding, #61 of 133 in Agents & Tool Use, #27 of 195 in Writing & Language, #62 of 124 in Vision & Documents. Strongest at: Reasoning, Science, Long context, Knowledge.
Is Claude Sonnet 4.6 better than Kimi K2.7 Code?›
On DeepSWE 1.1, Claude Sonnet 4.6 scores 29.9 vs 30.5 — about the same.
How can I use Claude Sonnet 4.6?›
Through the API of Amazon Bedrock, Anthropic, Azure, Claude Platform on AWS, DeepInfra and 1 more.
What is the context window of Claude Sonnet 4.6?›
1M tokens, with up to 128K output tokens.
When was Claude Sonnet 4.6 released? Is there a newer version?›
Released 2026-02-17. It has been superseded by Claude Sonnet 5.
Is Claude Sonnet 4.6 open source?›
No, Claude Sonnet 4.6 is a closed model available through an API. The closest open-weights option here is GLM 5.3.
Can Claude Sonnet 4.6 read images?›
It accepts text and images, PDF files as input.
What is Claude Sonnet 4.6?›
Claude Sonnet 4.6 is a closed language model from Anthropic, released Feb 2026.
What are the best alternatives to Claude Sonnet 4.6?›
Gemini 3.8 Flash (cheaper), GPT-5.6 Luna (better), GLM 5.3 (open weights).