Claude Sonnet 5
Claude Sonnet 5Alternatives?
CheaperGPT-6 Astramax+12%-36%$3.26Monitoring can return HTTP 403+2BetterGPT-6 Lunaxhigh+3%-99%$0.042Function calling only with none · Chat Completions+3
OpenMuse Spark Openxhigh+5%-83%$0.84Reasoning off leaves output unchanged · Self-hosted / llama.cpp+1CheaperClaude Opus 5.5xhigh+12%-32%$3.46No forced tool use+5CheaperGPT-6.1 Solmax+11%-86%$0.72Remove unsupported parameters+5GPT-6 Astramax+12%-36%$3.26Monitoring can return HTTP 403+2Claude Opus 5.5xhigh+12%-32%$3.46No forced tool use+5GPT-6.1 Solmax+11%-86%$0.72Remove unsupported parameters+5
Gemini 3.8 Flashhigh+11%-76%*$1.24Sampling parameters are ignored+1GPT-5.6 Solmax+8%-61%$1.99GPT-6 Lunaxhigh+3%-99%$0.042Function calling only with none · Chat Completions+3GPT-6.1 Sollow+8%-97%$0.13Remove unsupported parameters+5GPT-6 Sollow+4%-97%$0.13
Qwen3.7 Plusthinking+4%-96%$0.22GPT-5.6 Sollow+5%-95%$0.26Muse Spark OpenxhighOpen+5%-83%$0.84Reasoning off leaves output unchanged · Self-hosted / llama.cpp+1
DeepSeek V4.1 Flash 1017maxOpen+4%-95%$0.26Pass back reasoning_content · Chat Completions+4
Kimi K3maxOpen+4%-61%$2.00Sampling parameters are fixed+3Qwen3.8 FlashthinkingOpen+3%-93%$0.37Context: 1M → 262K+6Kimi K2.6thinkingOpen+3%-84%$0.80Context: 1M → 256KClaude Opus 5.5max+13%+17%$5.98No forced tool use+5Claude Opus 5max+10%+15%$5.86Claude Opus 4.7max+2%—$5 / $25Claude Opus 4.6max-2%—$5 / $25Claude Sonnet 4.6max-5%-51%$2.49Claude Opus 4.5non-thinking-8%—$5 / $25Context: 1M → 200KClaude Sonnet 4.5non-thinking-16%—$3 / $15Claude Haiku 4.5non-thinking-29%—$1 / $5Context: 1M → 200KAll Anthropic models →History
7 versionsBenchmarks
in Vision & DocumentsFAQ
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 $5.09 at max 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?›
#38 of 334 in Chat & Knowledge, #32 of 132 in Coding, #45 of 133 in Agents & Tool Use, #40 of 195 in Writing & Language, #36 of 124 in Vision & Documents. Strongest at: Coding, Agents & work tasks, Reasoning, Science, Long context, Knowledge.
Is Claude Sonnet 5 better than Claude Sonnet 4.6?›
On MMMU-Pro (vision), Claude Sonnet 5 scores 77.3 vs 73.3 — higher. It is 105% more expensive per task.
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 Muse Spark Open.
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?›
GPT-6 Astra (cheaper), GPT-6 Luna (better), Muse Spark Open (open weights).