Claude Opus 5.5 Offers 30% Faster Output and Improved Token Efficiency
September 28, 2026
Claude Opus 5.5 generates output tokens over 30% faster than Claude Opus 5 and requires fewer tokens to complete identical tasks. The model supports new prompting patterns for managing agentic runs, handling refusal reasons, and providing user-facing progress updates during long turns.
HOW THIS AFFECTS YOU
●
builderYou can reduce latency and token costs in your production pipelines.
●
founderImproved throughput and efficiency can lower your gross margins for LLM-based products.