The fastest Anthropic model is Claude Opus 4.8 (Fast) at 121 output tokens per second. Claude Haiku 4.5 (82 t/s) and Claude 3 Haiku (68 t/s) round out the top three.
AI models ranked by output speed (tokens per second, p50). The fastest large language models for low-latency and high-throughput applications.
The fastest Anthropic model is Claude Opus 4.8 (Fast) at 121 output tokens per second. Claude Haiku 4.5 (82 t/s) and Claude 3 Haiku (68 t/s) round out the top three.
Claude Haiku 4.5 (82 t/s) is the closest alternative on this metric, followed by Claude 3 Haiku (68 t/s). See the full ranking above for the tradeoffs.
modelgrep tracks 16 Anthropic models with live benchmarks, speed, latency and per-provider pricing, led on intelligence by Claude Fable 5. 14 of them qualify for this ranking.