Best of
Best of · 16 lists · data Oct 24, 2026
Best Rust crates and cheapest AI APIs, by the numbers
Ranked lists built only from data we measure ourselves, with the rules printed on every page: Rust crates by real use (release-day bot spikes removed), AI models by what the same work costs. No paid placements, no reviews scraped from elsewhere.
Best Rust crates for web frameworksaxum: 1.6M real downloads a day; 5 ranked.Best Rust crates for async runtimestokio: 3.1M real downloads a day; 5 ranked.Best Rust crates for serialization formatsserde_json: 4.3M real downloads a day; 12 ranked.Best Rust crates for error handlingthiserror: 5M real downloads a day; 5 ranked.Best Rust crates for logging and tracinglog: 3.9M real downloads a day; 4 ranked.Best Rust crates for databases and SQLsqlx: 540K real downloads a day; 6 ranked.Best Rust crates for dates and timestime: 2.4M real downloads a day; 5 ranked.Best Rust crates for testingcriterion: 753K real downloads a day; 9 ranked.Best Rust crates for concurrency and parallelismparking_lot: 3M real downloads a day; 10 ranked.Best Rust crates for parsingwinnow: 3.6M real downloads a day; 5 ranked.Best Rust crates for compressionminiz_oxide: 2.5M real downloads a day; 8 ranked.Best Rust crates for hashing and checksumssha2: 3.5M real downloads a day; 11 ranked.Best Rust crates for GUI and graphicstauri: 160K real downloads a day; 6 ranked.Cheapest LLM API with a 1M-token context windowClaude Haiku 5.5 at $0.35 per 1,000 chatbot replies.Cheapest LLM API with prompt cachingClaude Haiku 5.5 at $2.30 per 1,000 cached agent steps.Cheapest LLM API with a batch discountClaude Haiku 5.5 at $0.17 per 1,000 batch jobs.
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Another best-of list, same rulesCheapest LLM API with a 1M-token context windowCheapest LLM API with a 1M-token context window: Claude Haiku 5.5 at $0.35 per 1,000 chatbot replies. 24 current models ranked, rules stated.Read it next →