Claude Opus 4.8
Claude Opus 4.8Alternatives?
CheaperClaude Opus 5.5high×4.9-20%$1.82No forced tool use+5
BetterGPT-6 Astrahigh×4.5+100%$1.73Monitoring can return HTTP 403+2
OpenGLM 5.3max×4-79%$2.01No image input+4CheaperGPT-5.6 Solxhigh×3.3-20%$1.18
CheaperKimi K3unstatedOpen×3.2-40%$3 / $15Sampling parameters are fixed+3Claude Opus 5.5high×4.9-20%$1.82No forced tool use+5GLM 5.3maxOpen×4-79%$2.01No image input+4GPT-5.6 Solxhigh×3.3-20%$1.18Kimi K3unstatedOpen×3.2-40%$3 / $15Sampling parameters are fixed+3GPT-5.4medium×2.6-44%$2.50 / $15GPT-6 Astrahigh×4.5+100%$1.73Monitoring can return HTTP 403+2Claude Opus 5.5high×4.9-20%$1.82No forced tool use+5GLM 5.3maxOpen×4-79%$2.01No image input+4Claude Opus 5high×4.4same$3.61Claude Fable 5.1high×4.9+100%$3.91Replace forced tool_choice+5GLM 5.3maxOpen×4-79%$2.01No image input+4Kimi K3unstatedOpen×3.2-40%$3 / $15Sampling parameters are fixed+3
MiMo v2.6 ProthinkingOpensame-95%$0.13Pass back reasoning_content+3
DeepSeek V4 Pro 0813highOpensame-80%$1.32 / $3.96No image input+5GLM 5.2maxOpensame-79%$1.47No image inputClaude Fable 5.1high×4.9—$3.91Replace forced tool_choice+5Claude Opus 5xhigh×4.9—$4.88Claude Opus 5.5high×4.9—$1.82No forced tool use+5Claude Fable 5high×3.8—$10 / $50Claude Opus 4.7high×2.3—$5 / $25Claude Haiku 5.5mediumn/a—$0.047Remove sampling parameters+5Claude Sonnet 5.5highn/a—$0.88No forced tool use+5Claude Sonnet 5mediumn/a—$1.00All Anthropic models →History
9 versionsBenchmarks
in Writing & LanguageFAQ
How much does Claude Opus 4.8 cost?›
$5 per 1M input tokens and $25 per 1M output tokens; cached input $0.50 per 1M.
Is Claude Opus 4.8 free to use?›
There is no free API; the cheapest paid price is $5 per 1M input tokens.
How good is Claude Opus 4.8, and what is it best at?›
#14 of 334 in Chat & Knowledge, #28 of 132 in Coding, #41 of 133 in Agents & Tool Use, #12 of 195 in Writing & Language, #28 of 37 in Vision & Documents. Strongest at: Coding, Agents & work tasks, Tool calling, Reasoning, Science, Knowledge.
Is Claude Opus 4.8 better than Gemini 4 Argon?›
On Lech Mazur Short-Story, Claude Opus 4.8 scores 0.8 vs 0.8 — about the same.
How can I use Claude Opus 4.8?›
Through the API of Amazon Bedrock, Anthropic, Azure, Claude Platform on AWS, DeepInfra and 1 more.
What is the context window of Claude Opus 4.8?›
1M tokens, with up to 128K output tokens.
When was Claude Opus 4.8 released? Is there a newer version?›
Released 2026-05-28. It has been superseded by Claude Opus 5.
Is Claude Opus 4.8 open source?›
No, Claude Opus 4.8 is a closed model available through an API. The closest open-weights option here is GLM 5.3.
Can Claude Opus 4.8 read images?›
It accepts text and images, PDF files as input.
What is Claude Opus 4.8?›
Claude Opus 4.8 is a closed language model from Anthropic, released May 2026, the successor to Claude Opus 4.1.
What are the best alternatives to Claude Opus 4.8?›
Claude Opus 5.5 (cheaper), GPT-6 Astra (better), GLM 5.3 (open weights).