How Fast LiteLLM compares
Fast LiteLLM is an add-on to LiteLLM, not a competitor to it. These pages lay out the trade-offs honestly — including where the alternative is the better call and where we have no head-to-head numbers.
Fast LiteLLM vs stock LiteLLM
Fast LiteLLM is not an alternative to LiteLLM — it is an add-on that keeps stock LiteLLM as the source of truth and swaps only a few hot-path components for Rust.
Read the comparison →Fast LiteLLM vs the LiteLLM Rust sidecar
Both use Rust to speed up LiteLLM but take different shapes.
Read the comparison →Fast LiteLLM vs building your own Rust extension
You can write your own PyO3 extension to accelerate LiteLLM's hot paths, but you then own the fallback logic, circuit breaking, feature flags, wheel-building across platforms, and the ongoing benchmarking.
Read the comparison →Not sure whether acceleration will help your workload? Read the honest benchmarks (with the cases where Python wins) or book a 30-minute call and we'll tell you straight.