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Claude Opus 4.8

anthropic/claude-opus-4-8

Anthropic / Claude

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Top Claude Opus tier for the hardest reasoning, coding, and long-horizon agents

Released
2026-05-28
Context window
1M
Max output
128K
Weights
Closed
Modalities
TextInputImageInputDocumentInputTextOutput
Capabilities
AttachmentsReasoningTool call
Providers
AbacusAIHubMixAnthropicAzureAzure Cognitive ServicesCloudflare AI GatewayCrossModelDaoXEFastRouterFreeModelGitHub CopilotGMI CloudKenariKilo GatewayLLM GatewayMerge GatewayModel Oracle AIModelisNanoGPTNeonOfoxOpenCode ZenOpenRouterPioneerPoerouting.runSnowflake CortexUnoRouterVenice AIVercel AI GatewayXpersonaZenMux

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