Claude Opus 5
Claude Opus 5Alternatives?
CheaperStep 5 PreviewthinkingOpen+9%-7%$1.03web_search not available · Chat Completions+2
BetterMuse Glimmer 30BhighOpen+2%-95%$0.058Context: 1M → 131K
OpenKimi K3max+9%+82%$2.00Sampling parameters are fixed+3
CheaperMiMo v2.6 ProthinkingOpen+6%-88%$0.13Pass back reasoning_content+3
CheaperGPT-6.1 Sollow+3%-88%$0.13Remove unsupported parameters+5Step 5 PreviewthinkingOpen+9%-7%$1.03web_search not available · Chat Completions+2MiMo v2.6 ProthinkingOpen+6%-88%$0.13Pass back reasoning_content+3GPT-6.1 Sollow+3%-88%$0.13Remove unsupported parameters+5
Gemini 3.8 Flashmedium+3%-15%*$0.93Sampling parameters are ignored+1GPT-5.6 Lunamax+3%-84%$0.18Muse Glimmer 30BhighOpen+2%-95%$0.058Context: 1M → 131KGPT-6 Lunamax+2%-94%$0.068Function calling only with none · Chat Completions+3GPT-6.1 Sollow+3%-88%$0.13Remove unsupported parameters+5MiMo v2.6 ProthinkingOpen+6%-88%$0.13Pass back reasoning_content+3GPT-5.6 Lunamax+3%-84%$0.18Kimi K3maxOpen+9%+82%$2.00Sampling parameters are fixed+3Step 5 PreviewthinkingOpen+9%-7%$1.03web_search not available · Chat Completions+2MiMo v2.6 ProthinkingOpen+6%-88%$0.13Pass back reasoning_content+3Muse Glimmer 30BhighOpen+2%-95%$0.058Context: 1M → 131K
Ling 3.1 FlashOpen+2%-9%$1.00No image inputClaude Fable 5.1low+1%+116%$2.37Replace forced tool_choice+5Claude Fable 5max+1%+696%$8.75Claude Opus 5.5lowsame-50%$0.55No forced tool use+5Claude Opus 4.8max-5%+272%$4.08Claude Sonnet 5.5low-7%-69%$0.35No forced tool use+5Claude Opus 4.7high-7%—$5 / $25Claude Haiku 5.5low-11%-98%$0.024Remove sampling parameters+5Claude Opus 4.5non-thinking-13%—$5 / $25Context: 1M → 200KAll Anthropic models →History
9 versionsBenchmarks
in Agents & Tool UseFAQ
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 $1.10 at low 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?›
#28 of 334 in Chat & Knowledge, #23 of 132 in Coding, #33 of 133 in Agents & Tool Use, #10 of 195 in Writing & Language, #20 of 124 in Vision & Documents. Strongest at: Coding, Reasoning, Science, Long context, Knowledge, Vision.
Is Claude Opus 5 better than Claude Opus 4.8?›
On AA-LCR (long context) 1.1, Claude Opus 5 scores 82 vs 77.7 — higher. It is 73% 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 Kimi K3.
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?›
Step 5 Preview (cheaper), Muse Glimmer 30B (better), Kimi K3 (open weights).