Backed by Y CombinatorOpenbenchmarks
Independent benchmarks for build-vs-buy decisions. Verifiable, reproducible and open source.
Last run on 30 Aug 2026Benchmarks
Company Lookalikes
Tests how well company-search and lookalike APIs turn a seed company domain or description into a ranked list of genuinely similar businesses. Use it to compare tools for account discovery, prospecting, market mapping, and TAM expansion.
Company Firmographic Enrichment
282 company domains × 8 APIs, normalized into the same seven-field active scoring contract. Compare enrichment success rate, field accuracy, coverage, company match rate, latency, and cost by workflow.
Company Funding Data Enrichment
16 funding vendors, judged on latest funding stage against human labelled ground truth.
Company News
Which API answers questions about recent company events. Web search APIs against dedicated news indexes, same questions.
Voice Agents Latency Benchmark
TTFAB — how long a caller waits before a voice AI agent starts speaking — measured over real phone calls from the call's own audio, never platform-reported timestamps.
Text-to-Speech
29 text-to-speech models on Time to First Audio (TTFA) + Word Error Rate, measured by Coval under production-realistic conditions. Mirrored with attribution.
Live Speech-to-Text
26 live speech-to-text models on Word Error Rate and Time to Final Segment (TTFS), measured by Coval under production-realistic conditions. Rolling 7-day window, mirrored with attribution. Ranked here by WER, not median TTFS.
Structured Speech-to-Text
300 human-recorded workplace utterances × 17 ASR systems, checked for exact recovery of 1,482 structured values — emails, phone numbers, CLI flags, file paths, IDs. Cell value is Task Success Rate — recordings with every value correct.