Claude Opus 4.8 on OpenRouter: Pricing and Fast Mode
Melvin Vivas · X post · 2026-05-29 · Open on X
Topics: LLM Fundamentals, LLMOps, Deployment & Monitoring · Level: beginner
Summary
Claude Opus 4.8 is now on OpenRouter at the same price as Opus 4.7. The quoted post says it improves agentic coding, reasoning and computer use, and that Fast Mode trades higher cost for speed.
Key points
- Opus 4.8 costs the same as Opus 4.7.
- It improves agentic coding, reasoning and computer use.
- It is about 4x less likely than 4.7 to let code flaws pass without comment.
- Opus 4.8 Fast Mode costs 2x as much and runs about 2.5x faster.
- OpenRouter lets you call the model through one unified API gateway.
Resources mentioned
- OpenRouter · tool · openrouter.ai · free
A single OpenAI-compatible API that routes requests to hundreds of models from many providers, with one bill and model fallbacks.
Also in: Customizing Your Coding Setup with Pi Coding Agent Extensions (Melvin Vivas on X · notes), The Jev model is now on OpenRouter (Melvin Vivas on X · notes), Kev-4B model, an alternative to Jev, now available on OpenRouter (Melvin Vivas on X · notes), Space Bunny Alpha: stealth 1M-context flash model on OpenRouter (Melvin Vivas on X · notes) and 42 more - Claude Opus 5.5 · tool · claude.ai · paid · open in a browser to verify · recommended by both Bashiri Smith & Melvin Vivas
Anthropic's AI assistant, used throughout the guide to tailor resumes, add live roles to the tracker, match connections to target companies and find hiring managers.
Also in: Generating a Repo Promo Video with a Claude Skill on Sonnet 5.5 vs Opus 5.5 (Melvin Vivas on X · notes), Comparing Coding Models on the Same Task in Devin iOS (Melvin Vivas on X · notes), Customizing Your Coding Setup with Pi Coding Agent Extensions (Melvin Vivas on X · notes), AI Engineer Roadmap Overview: From ML Foundations to RAG, Agents & Ops (Bashiri Smith on Facebook · notes) and 53 more