All Models

Claude Opus 4.8 Fast

claude-opusReasoningTool CallingAttachmentsStructured Output

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

Providers1
ReleasedMay 28, 2026
Input Modalitiestext, image
Output Modalitiestext
Tarsk Usecoding

Available Providers (1)

ProviderModel IDInput CostOutput CostContextMax OutputDocs
Venice AIclaude-opus-4-8-fast$12/MTok$60/MTok1M128K

Capabilities

Reasoning
Tool Calling
Attachments
Open Weights
Structured Output