Harness Index Data on AI coding harnesses: benchmarks, pricing, and specs. No takes, just numbers.
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  • 16 February 2026

    The field, February 2026: 115 harnesses and counting

    We track every CLI coding harness we can find. This month's count: 115 active projects, from 389K-star giants to weekend experiments.

  • 16 February 2026

    What a coding harness actually costs you

    Everyone compares models. Almost nobody compares harnesses — yet the harness decides how many tokens your task burns, and tokens are what you pay for.