Skip to content
  • Models
  • Rankings
  • Ori
Sign Up
Sign Up
OpenRouterOpenRouter
© 2026 OpenRouter, Inc

Product

  • Chat
  • Rankings
  • Benchmarks
  • Apps
  • Discover
  • Models
  • Collections
  • Providers
  • Pricing
  • Business
  • Enterprise
  • Labs

Company

  • About
  • Blog
  • Careers
    Hiring
  • Privacy
  • Terms of Service
  • Trust Center
  • Support
  • Works With OR
  • Data
  • Brand

Developer

  • Documentation
  • API Reference
  • Developer Platform
  • Status

Connect

  • Discord
  • GitHub
  • LinkedIn
  • X
  • YouTube
  1. Home
  2. /
  3. Compare

Step 3.7 Flash vs Claude Opus 4.8 (Fast)

Compare Step 3.7 Flash from stepfun and Claude Opus 4.8 (Fast) from Anthropic on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.

Step 3.7 Flash vs Claude Opus 4.8 (Fast): side-by-side summary

Step 3.7 Flash and Claude Opus 4.8 (Fast) are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Step 3.7 Flash, from stepfun, has a 262,144-token context window and is priced at $0.16/M tokens input, $0.92/M tokens output on OpenRouter.

Claude Opus 4.8 (Fast), from Anthropic, has a 1,000,000-token context window and is priced by the provider serving it on OpenRouter.

Context window
  • Step 3.7 Flash: 262,144 tokens
  • Claude Opus 4.8 (Fast): 1,000,000 tokens
Price
  • Step 3.7 Flash: $0.16/M tokens input, $0.92/M tokens output
  • Claude Opus 4.8 (Fast): Pricing varies by provider
Provided by
  • Step 3.7 Flash: stepfun
  • Claude Opus 4.8 (Fast): Anthropic
  • Step 3.7 Flash model details, providers and pricing
  • Claude Opus 4.8 (Fast) model details, providers and pricing