Claude Opus 4.8
Claude Opus 4.8Alternatives?
CheaperClaude Opus 5.5unstated+5%-20%$4 / $20No forced tool use+5BetterClaude Opus 5unstated+7%same$5 / $25
OpenGLM 5.3unstated+1%-79%$1.40 / $4.40No image input+4
CheaperGrok 4.7unstated+3%-70%$2 / $6Context: 1M → 500K+5
CheaperMuse Spark 1.3unstated+2%-80%$1.25 / $4.25Only auto tool_choice is supported+5Claude Opus 5.5unstated+5%-20%$4 / $20No forced tool use+5Grok 4.7unstated+3%-70%$2 / $6Context: 1M → 500K+5Muse Spark 1.3unstated+2%-80%$1.25 / $4.25Only auto tool_choice is supported+5
GPT-6 Solunstated+2%-60%$2 / $10aAion 3.5unstated+2%-63%$3 / $6Context: 1M → 262K+1Claude Opus 5unstated+7%same$5 / $25Claude Fable 5.1unstated+6%+100%$10 / $50Replace forced tool_choice+5Claude Opus 5.5unstated+5%-20%$4 / $20No forced tool use+5Claude Fable 5unstated+3%+100%$10 / $50Grok 4.7unstated+3%-70%$2 / $6Context: 1M → 500K+5GLM 5.3unstatedOpen+1%-79%$1.40 / $4.40No image input+4
Kimi K3unstatedOpen-1%-40%$3 / $15Sampling parameters are fixed+3Kimi K2.6unstatedOpen-3%-83%$0.95 / $4Context: 1M → 256KGLM 5.2unstatedOpen-4%-79%$1.40 / $4.40No image input
DeepSeek V4 Pro 0813unstatedOpen-6%-80%$1.32 / $3.96No image input+5Claude Opus 5unstated+7%—$5 / $25Claude Fable 5.1unstated+6%—$10 / $50Replace forced tool_choice+5Claude Opus 5.5unstated+5%—$4 / $20No forced tool use+5Claude Fable 5unstated+3%—$10 / $50Claude Opus 4.7unstated+1%—$5 / $25Claude Sonnet 4.6unstatedsame—$3 / $15Claude Sonnet 5unstated-3%—$2 / $10Claude Opus 4.6unstated-4%—$5 / $25All 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. 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 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 Claude Opus 4.1?›
On EQ-Bench Longform Creative Writing 1.11, Claude Opus 4.8 scores 80.8 vs 70.5 — higher.
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), Claude Opus 5 (better), GLM 5.3 (open weights).