LMSpeed is a free developer tool for comparing LLM API pricing and real-world speed benchmarks across over 100 providers.
What is LMSpeed?
LMSpeed is a web-based comparison tool that tracks per-token costs, latency, throughput, and provider health for OpenAI, Claude, Gemini, DeepSeek, Llama, Qwen, and other popular models. It aggregates data from more than 100 API providers and presents side-by-side benchmarks for pricing and speed. The tool is free to use and does not require an account.
Key Features
- Per‑token cost comparison — Shows exact pricing per input and output token for each provider and model, including free API options.
- Latency and throughput benchmarks — Displays real-world response times and requests-per-second for each endpoint.
- Provider health monitoring — Indicates live status and uptime for every tracked API provider.
- Model coverage — Supports over 100 providers covering GPT‑4, Claude 3, Gemini, DeepSeek, Llama, Qwen, Mistral, and many open‑source and commercial models.
- Custom endpoint benchmarking — Lets you test any API endpoint and compare its speed and cost against the database of providers.
- No‑signup access — All data is publicly viewable without registration; no login required.
Who is it for?
- AI developers choosing the most cost‑effective or lowest‑latency API for a production LLM application.
- Researchers evaluating multiple providers for model performance, cost, and reliability under real usage.
- Product managers assessing API provider trade‑offs before committing to a vendor or planning cost budgets for LLM‑powered features.
What can you do with LMSpeed?
- Find the cheapest provider for a specific model: Enter the model name (e.g., GPT‑4o) and immediately see which API offers the lowest per‑token price.
- Benchmark a custom endpoint: Paste your own API URL and compare its latency and throughput against the catalog of over 100 providers.
- Identify free API tiers: Filter by free‑tier options to find zero‑cost endpoints suitable for prototyping, testing, or low‑volume tasks.
Pricing
LMSpeed is completely free to use. No paid tiers or subscriptions are mentioned.
FAQ
Is LMSpeed free?
Yes, all features — including price comparisons, speed benchmarks, and custom endpoint testing — are available at no cost.
Does LMSpeed require an account?
No, you can browse and use all comparison data without creating an account or logging in.
What providers and models does LMSpeed cover?
LMSpeed indexes over 100 API providers, including OpenAI (GPT‑4 series, GPT‑3.5), Anthropic (Claude 3), Google (Gemini), DeepSeek, Meta (Llama), Alibaba (Qwen), Mistral, and many open‑source and commercial endpoints.
Can I test my own API endpoint?
Yes, LMSpeed allows you to input a custom API URL and benchmark its latency and throughput against the existing provider data.
