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SpecPilot
SpecPilot is an agentic optimization tool that discovers lossless speedups for speculative decoding systems.
SpecPilot is an agentic loop that finds lossless optimizations for speculative decoding systems. It uses a cost model to locate gaps between the current system and its ceiling, while parallel agents explore directions and a kernel sub-agent tunes memory-bandwidth limits. Token forcing checks every output token against stock models to catch drift. The repository ships engines for six deployments alongside scripts to serve, benchmark, and verify them. It supports models on Hugging Face such as Qwen and Muse, and communicates via SGLang HTTP and OpenAI-compatible APIs.
SpecPilot at a glance
Key features
- Finds lossless optimizations for speculative decoding
- Uses parallel agents to explore and integrate improvements
- Tunes kernels to memory-bandwidth limits
- Checks output tokens with token forcing
- Streams BF16 weights in a 12-bit format
- Runs benchmarks and grades outputs
Use it for
- Optimizing speculative decoding speed
- Benchmarking language model deployments
- Verifying token accuracy against target models
Alternatives to SpecPilot
- Specops — It stops AI from coding without requirements by enforcing a multi-phase spec workflow.
- Spec Kit — Provides structured processes and templates for AI coding agents.
- SpecDeck — It gives human teams and coding agents a single shared source of truth to build from.
- Spectra-FFT — Cuts training memory by over fifty percent on standard GPUs.
- JFrog Boost — Lowers token usage for AI coding agents through input filtering.
- Strata — Runs large AI models locally on consumer gaming PCs without server reliance.
- Specweave — It coordinates multiple AI tools and agents with shared specs, memory, and an append-only ledger.
- spec-first — It replaces vibe coding with reviewed specs, isolated worktrees, and gated commits.
- SpectraAdamw — Reduces optimizer state memory by fifty percent without losing convergence speed.
- ModLens — Converts screenshots and charts into structured JSON data for coding agents.
- jevgrep — Reduces coding agent costs by providing targeted, relevant repository context.
- MTPLX — It runs local models twice as fast via native MTP speculative decoding.
All SpecPilot alternatives