Claude Opus 5
Claude Opus 5Alternatives?
CheaperGemini 4 Argonhigh+11%-9%*$1.99Synchronous output stops at 65,536+2BetterClaude Opus 5.5medium+7%-39%$1.34No forced tool use+5
OpenMiMo v2.6 Prothinking-4%-94%$0.13Pass back reasoning_content+3Lower effortSame modellow-15%-50%$1.10
CheaperGPT-6 Astrahigh+3%-21%$1.73Monitoring can return HTTP 403+2Gemini 4 Argonhigh+11%-9%*$1.99Synchronous output stops at 65,536+2Claude Opus 5.5high+8%-17%$1.82No forced tool use+5GPT-6 Astrahigh+3%-21%$1.73Monitoring can return HTTP 403+2GPT-6.1 Solmax+3%-67%$0.72Remove unsupported parameters+5Claude Sonnet 5.5xhigh-3%-8%$2.01No forced tool use+5Claude Opus 5.5medium+7%-39%$1.34No forced tool use+5Gemini 4 Argonhigh+11%-9%*$1.99Synchronous output stops at 65,536+2GPT-6 Astraxhigh+6%+5%$2.31Monitoring can return HTTP 403+2Claude Fable 5.1medium+5%+36%$2.98Replace forced tool_choice+5Claude Sonnet 5.5max+7%+149%$5.46No forced tool use+5MiMo v2.6 ProthinkingOpen-4%-94%$0.13Pass back reasoning_content+3
Kimi K3maxOpen-9%-9%$2.00Sampling parameters are fixed+3
Step 5 PreviewthinkingOpen-9%-53%$1.03web_search not available · Chat Completions+2
Muse Spark OpenxhighOpen-14%-61%$0.84Reasoning off leaves output unchanged · Self-hosted / llama.cpp+1
DeepSeek V4.1 Flash 1017maxOpen-16%-88%$0.26Pass back reasoning_content · Chat Completions+4Claude Fable 5max+8%+299%$8.75Claude Opus 5.5medium+7%-39%$1.34No forced tool use+5Claude Fable 5.1medium+5%+36%$2.98Replace forced tool_choice+5Claude Opus 4.8max-5%+86%$4.08Claude Sonnet 5.5medium-22%-78%$0.48No forced tool use+5Claude Haiku 5.5medium-34%-98%$0.047Remove sampling parameters+5Claude Opus 4.7high-35%—$5 / $25Claude Sonnet 5medium-42%-54%$1.00All Anthropic models →History
9 versionsBenchmarks
in Chat & KnowledgeFAQ
How much does Claude Opus 5 cost?›
$5 per 1M input tokens and $25 per 1M output tokens; cached input $0.50 per 1M. A typical benchmark task costs about $2.19 at medium effort.
Is Claude Opus 5 free to use?›
There is no free API; the cheapest paid price is $5 per 1M input tokens.
How good is Claude Opus 5, and what is it best at?›
#9 of 334 in Chat & Knowledge, #16 of 132 in Coding, #30 of 133 in Agents & Tool Use, #10 of 195 in Writing & Language, #11 of 124 in Vision & Documents. Strongest at: Coding, Agents & work tasks, Reasoning, Science, Long context, Knowledge, Vision.
Is Claude Opus 5 better than Claude Opus 4.8?›
On Humanity's Last Exam, Claude Opus 5 scores 54.9 vs 48.7 — higher. It is 46% cheaper per task.
How can I use Claude Opus 5?›
Through the API of Amazon Bedrock, Anthropic, Azure, Claude Platform on AWS, DeepInfra and 1 more.
What is the context window of Claude Opus 5?›
1M tokens, with up to 128K output tokens.
When was Claude Opus 5 released? Is there a newer version?›
Released 2026-07-24. It has been superseded by Claude Opus 5.5.
Is Claude Opus 5 open source?›
No, Claude Opus 5 is a closed model available through an API. The closest open-weights option here is MiMo v2.6 Pro.
Can Claude Opus 5 read images?›
It accepts text and images, PDF files as input.
What is Claude Opus 5?›
Claude Opus 5 is a closed language model from Anthropic, released Jul 2026, the successor to Claude Opus 4.8.
What are the best alternatives to Claude Opus 5?›
Gemini 4 Argon (cheaper), Claude Opus 5.5 (better), MiMo v2.6 Pro (open weights).