Claude Sonnet 4.6
Claude Sonnet 4.6Alternatives?
CheaperGemini 4 Argonhighwins 60%-33%*$1.99Synchronous output stops at 65,536+2
BetterGPT-5.6 Solxhighwins 53%+33%$1.18
OpenKimi K3maxsamesame$2.00Sampling parameters are fixed+3CheaperGemini 3.8 Flashhighwins 55%-75%*$1.24Sampling parameters are ignored+1CheaperGemini 3.1 Pro Previewunstatedwins 55%-25%$2 / $12Cannot use both thinking controlsGemini 4 Argonhighwins 60%-33%*$1.99Synchronous output stops at 65,536+2Gemini 3.8 Flashhighwins 55%-75%*$1.24Sampling parameters are ignored+1Gemini 3.1 Pro Previewunstatedwins 55%-25%$2 / $12Cannot use both thinking controlsGemini 3.6 Flashhighwins 53%-75%*$1.60
Muse Sparkunstatedwins 52%-67%$1.25 / $4.25Only n=1 · Meta / Chat Completions+1GPT-5.6 Solxhighwins 53%+33%$1.18Gemini 3.8 Flashhighwins 55%-75%*$1.24Sampling parameters are ignored+1Gemini 3.6 Flashhighwins 53%-75%*$1.60Claude Opus 5.5highwins 60%+33%$1.82No forced tool use+5Gemini 4 Argonhighwins 60%-33%*$1.99Synchronous output stops at 65,536+2Kimi K3maxOpensamesame$2.00Sampling parameters are fixed+3
GLM 5.2maxOpensame-64%$1.47No image inputGLM 5.3maxOpensame-64%$2.01No image input+4GLM 5unstatedOpensame-74%$1 / $3.20Context: 1M → 203K+1GLM 5.1unstatedOpensame-64%$1.40 / $4.40Context: 1M → 203K+1Claude Opus 5.5highwins 60%—$1.82No forced tool use+5Claude Fable 5highwins 57%—$10 / $50Claude Opus 4.6highwins 57%—$5 / $25Claude Opus 4.7highwins 56%—$5 / $25Claude Fable 5.1maxwins 55%—$7.63Replace forced tool_choice+5Claude Opus 5maxwins 53%—$5.86Claude Opus 4.8highwins 53%—$5 / $25Claude Opus 4.5highwins 53%—$5 / $25Context: 1M → 200KAll Anthropic models →History
7 versionsBenchmarks
in Writing & LanguageFAQ
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?›
#152 of 334 in Chat & Knowledge, #46 of 132 in Coding, #61 of 133 in Agents & Tool Use, #27 of 195 in Writing & Language, #67 of 124 in Vision & Documents. Strongest at: Knowledge.
Is Claude Sonnet 4.6 better than GPT-6 Astra?›
On Arena Text · creative writing, Claude Sonnet 4.6 scores 1,449 vs 1,450 — 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 Kimi K3.
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 4 Argon (cheaper), GPT-5.6 Sol (better), Kimi K3 (open weights).