Speech-to-speech model benchmarks on live phone calls
Cekura Bench publishes voice AI benchmarks you can verify. Our new speech-to-speech benchmark tests 9 realtime voice models, including GPT Realtime 2.1, Gemini Live, Grok and Phonic, as complete phone agents on live calls: 82 scenarios, three runs each. Models are ranked on reliability, data accuracy, stalled calls, response time and cost, and every call transcript is public. Cekura Bench also covers voice agent benchmarks and STT benchmarks, with TTS benchmarks coming soon.
Cekura Bench launched on Product Hunt on 2026-10-08 and has 94 upvotes and 13 comments so far.
Pricing details for this tool haven’t been verified yet — check the tool’s website for current plans.