Job 07 · Not yet tested
Best AI voice for narration or a voice agent?
Speech tools on one 300-word script. A person listens. We also record latency, price for that clip, and whether an API exists for a voice agent.
People picking a voice for narration or a spoken agent.
The standard test
Pack 0.1.0 · specified · 300-word narration
Same 300-word script
Setup
Generate speech from one script. A person reviews pronunciation, pacing, and artifacts. We record time-to-first-audio where the product exposes it, the price of the clip, and whether a streaming or API path exists. We do not publish a made-up listener score.
Inputs
The script and the voice settings, which are the same kind of choice for every tool (default voice unless the pack names one).
Time limit
One wall-clock cap for every tool in the job. The number is published with the pack before the first run and does not move between tools.
What we record
- Listening notes
- Latency
- Cost of the clip
- API or streaming path
- Version
- Plan
How the FitScore is built
FitScore = weighted average × 20, rounded to the nearest integer. The weighted average is the sum of (criterion score × weight) divided by 100.
- Output quality30
- Reliability15
- Cost and free tier15
- Speed10
- Setup friction10
- Agent, API, and MCP support10
- Privacy and data10
5 excellent · 4 good · 3 usable · 2 poor · 1 fails. Full method.
Candidates
Candidates for Voice / TTS. This order is the launch list, not a ranking. No FitScores are published.
Version and plan recorded when a test is published
Version and plan recorded when a test is published
Version and plan recorded when a test is published
Version and plan recorded when a test is published
Version and plan recorded when a test is published
Version and plan recorded when a test is published
Questions this page answers
- Best AI voice for narration or a voice agent?
- FitForTool has not published a FitScore for this job. The launch candidates are ElevenLabs, OpenAI TTS, Cartesia, Hume, PlayHT, and Google Gemini TTS. Each one is listed as not yet tested. A ranking is published only after every tool in the comparison has had the same test pack run, and a person has reviewed the result. Until that page shows a FitScore, there is no winner.
- How will FitForTool test voice / tts?
- Same 300-word script. Generate speech from one script. A person reviews pronunciation, pacing, and artifacts. We record time-to-first-audio where the product exposes it, the price of the clip, and whether a streaming or API path exists. We do not publish a made-up listener score. We record listening notes, latency, cost of the clip, api or streaming path, version, and plan. Those notes are then scored from 1 to 5 on seven shared criteria. The pack has been specified and has not been run.
- Can a vendor pay to rank higher on this job?
- No. FitForTool does not sell position or score. A sponsorship, if we run one later, is labelled and sits outside the ranked list. An affiliate link is disclosed and does not change order. A vendor may ask for a retest, and we rerun the same pack. Sponsors do not see the result before it is public.
- What does "Not yet tested" mean?
- The tool is a candidate for this job. There is no published hands-on run, so there is no FitScore, no criterion score, and no rank. Research-only is a different label, used when we have read the docs and still have not run the pack. Neither label is a score.