AnthropicClaude Opus 4.8
Anthropic's Claude Opus 4.8 is a chat model that excels at handling diverse inputs, including images, PDFs, and text, within a large context window of 1,000,000 tokens. It demonstrates exceptional performance across various benchmarks, with top 10% scores in Intelligence Index, Coding Index, GPQA, and HLE, showcasing its strength in these areas.
Input
Output
Context
1M
Max Output
128K
Parameters
-
Technical Specifications
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Output Modalities
Capabilities
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Benchmarks
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Frequently asked questions about Claude Opus 4.8
Answered from the entry's own fields: context, license, modalities, evidence, serving and the memory to self-host.
Claude Opus 4.8 advertises a context window of 1,000,000 tokens, with a maximum output of 128,000 tokens in a single response. The figure is the creator's published maximum; a given provider may serve less, and the gateway routes on what each provider actually serves.
No. Claude Opus 4.8 is a proprietary model (license: Proprietary): its weights are not distributed, and it runs only through Anthropic's own API or a provider licensed to serve it.
Claude Opus 4.8 accepts Text and Image and produces Text. The capabilities card on this page lists which API features each deployment honours, such as function calling and structured output, with the source each was checked against.
Claude Opus 4.8 has published results from Artificial Analysis, shown by suite in the benchmarks card above exactly as the publisher reported them. Scores are not combined across suites, and a suite that has not measured Claude Opus 4.8 is shown as not available rather than estimated.
Not on the managed pool today; Claude Opus 4.8 is listed for reference and comparison. Connect your own provider key or endpoint that serves it and the gateway runs it on your account, with routing decisions recorded the same way.
Claude Opus 4.8 cannot be self-hosted: its weights are not distributed. It is used through an API, either Anthropic's own or the Inferbase gateway where it is served.
Fields collected from public registries, provider APIs and benchmark publishers, each tagged with its source.
Last updated: Oct 16, 2026
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