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Claude Opus 4.8 (Fast)

ANTHROPIC Developer Architecture Profile

OpenRouter ↗HuggingFace ↗
Intelligence (ELO)1642Chatbot Arena Verified
Max Context1,000,000Tokens
API Cost / 1M$60.00Blended Prompt + Completion

Model Capabilities

  • Fictional
  • Reasoning
  • Agentic
  • Top Tier
  • Coding & Logic
Fast-mode variant of [Opus 4.8](/anthropic/claude-opus-4.8) - identical capabilities with higher output speed at 2x pricing relative to regular Opus 4.8. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode

Granular Pricing Matrix

Input Tokens (Prompt)$10.00 / 1M
Output Tokens (Completion)$50.00 / 1M

Pricing data via OpenRouter. Sync: 6/13/2026

Evaluate Competitors

VS Engine MatchupClaude Opus 4.8 (Fast) vs Anthropic: Claude Fable 5VS Engine MatchupClaude Opus 4.8 (Fast) vs DeepSeek: DeepSeek V4 ProVS Engine MatchupClaude Opus 4.8 (Fast) vs xAI: Grok 4.3VS Engine MatchupClaude Opus 4.8 (Fast) vs DeepSeek: DeepSeek V3.2VS Engine MatchupClaude Opus 4.8 (Fast) vs xAI: Grok Build 0.1