Claude Sonnet 5
Claude Sonnet 5Alternatives?
CheaperGemini 3.8 Flashhighwins 57%-31%*$1.24Sampling parameters are ignored+1
BetterGPT-6.1 Solmaxwins 53%-60%$0.72Remove unsupported parameters+5
OpenKimi K3maxwins 54%+12%$2.00Sampling parameters are fixed+3CheaperGemini 3.6 Flashhighwins 55%-11%*$1.60CheaperGPT-5.6 Solxhighwins 55%-34%$1.18Gemini 3.8 Flashhighwins 57%-31%*$1.24Sampling parameters are ignored+1Gemini 3.6 Flashhighwins 55%-11%*$1.60GPT-5.6 Solxhighwins 55%-34%$1.18
Muse Sparkunstatedwins 54%-50%$1.25 / $4.25Only n=1 · Meta / Chat Completions+1Muse Spark 1.3maxwins 54%-10%$1.60Only auto tool_choice is supported+5GPT-6.1 Solmaxwins 53%-60%$0.72Remove unsupported parameters+5GPT-5.6 Solxhighwins 55%-34%$1.18Gemini 3.8 Flashhighwins 57%-31%*$1.24Sampling parameters are ignored+1
GLM 5.2maxOpenwins 53%-18%$1.47No image inputGPT-5.5highwins 52%-14%$1.54Prompts with >272K input tokensKimi K3maxOpenwins 54%+12%$2.00Sampling parameters are fixed+3GLM 5.2maxOpenwins 53%-18%$1.47No image inputGLM 5.3maxOpenwins 52%+12%$2.01No image input+4GLM 5unstatedOpensame-61%$1 / $3.20Context: 1M → 203K+1GLM 5.1unstatedOpensame-46%$1.40 / $4.40Context: 1M → 203K+1Claude Opus 5.5highwins 62%same$1.82No forced tool use+5Claude Fable 5highwins 59%—$10 / $50Claude Opus 4.6highwins 59%—$5 / $25Claude Opus 4.7highwins 58%—$5 / $25Claude Fable 5.1maxwins 57%+326%$7.63Replace forced tool_choice+5Claude Opus 5maxwins 55%+227%$5.86Claude Opus 4.8highwins 55%—$5 / $25Claude Opus 4.5highwins 55%—$5 / $25Context: 1M → 200KAll Anthropic models →History
7 versionsBenchmarks
in Writing & LanguageFAQ
How much does Claude Sonnet 5 cost?›
$2 per 1M input tokens and $10 per 1M output tokens; cached input $0.20 per 1M. A typical benchmark task costs about $1.00 at medium effort.
Is Claude Sonnet 5 free to use?›
There is no free API; the cheapest paid price is $2 per 1M input tokens.
How good is Claude Sonnet 5, and what is it best at?›
#80 of 334 in Chat & Knowledge, #48 of 132 in Coding, #50 of 133 in Agents & Tool Use, #40 of 195 in Writing & Language, #36 of 124 in Vision & Documents. Strongest at: Reasoning, Science.
Is Claude Sonnet 5 better than Claude Sonnet 4.6?›
On Arena Text · creative writing, Claude Sonnet 5 scores 1,436 vs 1,449 — about the same.
How can I use Claude Sonnet 5?›
Through the API of Amazon Bedrock, Anthropic, Azure, Claude Platform on AWS, DeepInfra and 1 more.
What is the context window of Claude Sonnet 5?›
1M tokens, with up to 128K output tokens.
When was Claude Sonnet 5 released? Is there a newer version?›
Released 2026-06-29. It has been superseded by Claude Sonnet 5.5.
Is Claude Sonnet 5 open source?›
No, Claude Sonnet 5 is a closed model available through an API. The closest open-weights option here is Kimi K3.
Can Claude Sonnet 5 read images?›
It accepts text and images, PDF files as input.
What is Claude Sonnet 5?›
Claude Sonnet 5 is a closed language model from Anthropic, released Jun 2026, the successor to Claude Sonnet 4.6.
What are the best alternatives to Claude Sonnet 5?›
Gemini 3.8 Flash (cheaper), GPT-6.1 Sol (better), Kimi K3 (open weights).