Long Contexts Multiply Speculative Decoding Gains, Acceptance Rate Nears 100%

DjCanalex · reddit · 2026-08-06

A Reddit developer shared benchmark data showing that speculative decoding acts as a massive performance multiplier, especially with long contexts.

The logs indicate that as the context length increases, the draft acceptance rate climbs steadily: in tasks processing around 139k to 140k tokens, the acceptance rate rises from 80% to nearly 98% and even hits 100%. In individual tasks, the mean accepted length reaches up to 3.00, effectively reducing generation latency and significantly boosting tokens per second (t/s).

Original post →

More from Infra

Infra channel →