Llmspeed
feel how fast a local LLM runs before you buy the hardware
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What is Llmspeed?
Llmspeed is feel how fast a local LLM runs before you buy the hardware It's designed for anyone sizing hardware for a local llm before buying.
About Llmspeed
Key Strengths
- Pick a GPU, Mac or CPU and a model, then watch a simulated response stream at the estimated tokens/sec and time-to-first-token
- Figures are labeled as measured (from r/LocalLLaMA, localscore.ai and other community benchmarks), derived or projected
- Free, no sign-up, open source (MIT) and quickly updated with new models
Limitations to Consider
- Single-device estimates only: no multi-GPU or mixed-card setups yet (an open GitHub request)
- Based on a short prompt; HN users pointed out that prefill speed matters more for agentic coding
- Some numbers look off: an HN user said their M2 Ultra runs about twice the listed M3 Ultra speed, and an open issue flags RTX 5080/5090 rows below an RTX 3090
Best For
Anyone sizing hardware for a local LLM before buying.
Skip it if: You need multi-GPU planning or exact numbers for your own workload.
Pricing
flexible pricing options
Free and open source (MIT). (checked Oct 19, 2026)
Sources
- https://llmspeed.dev/
- https://github.com/nicorobinreal/llmspeed
- https://news.ycombinator.com/item?id=50127979
- https://github.com/nicorobinreal/llmspeed/issues/3
Pros, cons and pricing compiled from public sources (official pricing/docs pages, published reviews, user reports), not hands-on testing.
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What is Llmspeed?
Llmspeed is feel how fast a local LLM runs before you buy the hardware It's designed for anyone sizing hardware for a local llm before buying.
How much does Llmspeed cost?
Llmspeed offers flexible pricing options You can check pricing on their official website.
Who should use Llmspeed?
Llmspeed is best suited to anyone sizing hardware for a local llm before buying.