Claude Opus 4.8
Claude Opus 4.8Alternatives?
CheaperGPT-5.5xhigh+20%-49%$2.10Prompts with >272K input tokens
OpenGLM 5.2max-29%-69%$1.28No image inputCheaperGPT-5.4xhigh-5%-44%$2.50 / $15
OpenKimi K2.6unstated-59%-83%$0.95 / $4Context: 1M → 256K
OpenMiniMax M3unstated-65%-95%$0.30 / $1.20Context: 1M → 524K+2GPT-5.5xhigh+20%-49%$2.10Prompts with >272K input tokensGPT-5.4xhigh-5%-44%$2.50 / $15GPT-5.5high+6%-66%$1.40Prompts with >272K input tokensGLM 5.2maxOpen-29%-69%$1.28No image inputKimi K2.6unstatedOpen-59%-83%$0.95 / $4Context: 1M → 256KMiniMax M3unstatedOpen-65%-95%$0.30 / $1.20Context: 1M → 524K+2
MiMo v2.5 ProunstatedOpen-67%-95%$0.43 / $0.87No image inputGLM 5.1unstatedOpen-70%-79%$1.40 / $4.40Context: 1M → 203K+1Claude Opus 4.7max-7%—$5 / $25Claude Sonnet 4.6high-45%—$3 / $15Claude Opus 4.6max-53%—$5 / $25Claude Haiku 4.5unstated-100%—$1 / $5Context: 1M → 200KClaude Haiku 5.5mediumn/a—$0.047Remove sampling parameters+5Claude Sonnet 5.5highn/a—$0.88No forced tool use+5Claude Opus 5.5mediumn/a—$1.34No forced tool use+5Claude Fable 5.1mediumn/a—$2.98Replace forced tool_choice+5All Anthropic models →History
9 versionsBenchmarks
in CodingFAQ
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. A typical benchmark task costs about $4.08 at max effort.
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 336 in Chat & Knowledge, #30 of 134 in Coding, #43 of 135 in Agents & Tool Use, #21 of 197 in Writing & Language, #28 of 37 in Vision & Documents. Strongest at: Coding, Agents & work tasks, Tool calling, Reasoning, Science, Long context, Knowledge.
Is Claude Opus 4.8 better than GPT-5.5?›
On DeepSWE 1, Claude Opus 4.8 scores 58.2 vs 70 — lower. It is 94% more expensive per task.
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 It has been superseded by Claude Opus 5.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 5.2.
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?›
GPT-5.5 (cheaper), GLM 5.2 (open weights).