Rime Labs

Notes from the team building the future of voice

Rime Labs is one hub to learn more about how we design our models, build our APIs, and run unbiased field experiments. Pushing the boundaries of AI voice, one release at a time.

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Experiments and benchmarks from the field

Answering questions every day that help our team, and our customers, ship world-class products for human enjoyment.

Featured

Voice Lab live call leaderboard

Which voices keep customers on the line. Thousands of real outbound calls a week, scored on completion, competitors named.

See the results

Voice Lab live call leaderboard

Which voices keep customers on the line. Thousands of real outbound calls a week, scored on completion, competitors named.

October 8, 2026

See the results

A new standard for voice benchmarks

What a voice does on the job: reading identifiers, support calls, and narration. 31,100 human judgments across five TTS systems, all open.

September 15, 2026

See the results

Publications

Weekly findings from the lab, benchmark results, and papers and build notes from the linguists and engineers behind our models.

DateLaneTitle

October 8, 2026

Field experiments

Voice Lab live call leaderboard

Which voices keep customers on the line. Thousands of real outbound calls a week, scored on completion, competitors named.

September 15, 2026

Benchmarks

A new standard for voice benchmarks

What a voice does on the job: reading identifiers, support calls, and narration. 31,100 human judgments across five TTS systems, all open.

Read the findings before they publish

Raw data, repo access, early research drops, and the researchers who ran the tests, in one Slack community for people running voice agents in production.

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