Head to head · Speech stt · October 2026 research run
Gladia Speech-to-Text API + MCP vs Rev AI Speech-to-Text API
Gladia Speech-to-Text API + MCP has a score of 69.7 (B) against Rev AI Speech-to-Text API's 58 (C). Both do speech stt. The largest gap is maintenance & community, 50 points.
Gladia Speech-to-Text API + MCPGladia · Model API
B69.7/100#108 of 452
Rev AI Speech-to-Text APIRev · Model API
C58/100#285 of 452
Which one, for what
Pick Gladia Speech-to-Text API + MCP for
- schema & documentation (+15)
- security & auth (+30)
- payments & pricing (+20)
- maintenance & community (+50)
Pick Rev AI Speech-to-Text API for
- reliability (+15)
- transparency & trust (+5)
Score by category
| Category | Weight this run | Gladia Speech-to-Text API + MCP | Rev AI Speech-to-Text API | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 60 | 75 | Rev AI Speech-to-Text API +15 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 95 | 80 | Gladia Speech-to-Text API + MCP +15 |
| Agent ergonomics | 13%16.2 | 75 | 72 | Gladia Speech-to-Text API + MCP +3 |
| Security & auth | 14%17.5 | 70 | 40 | Gladia Speech-to-Text API + MCP +30 |
| Payments & pricing | 10%12.5 | 40 | 20 | Gladia Speech-to-Text API + MCP +20 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 80 | 30 | Gladia Speech-to-Text API + MCP +50 |
| Transparency & trust | 7%8.8 | 66 | 71 | Rev AI Speech-to-Text API +5 |
| Negative events | ≤15 | 0 | 0 | |
| Total | 69.7 · B | 58 · C |
Facts side by side
| Fact | Gladia Speech-to-Text API + MCP | Rev AI Speech-to-Text API |
|---|---|---|
| Kind | Model API | Model API |
| Vendor | Gladia | Rev |
| Hosted endpoint | https://api.gladia.io/v2 | https://api.rev.ai/speechtotext/v1 |
| Transports | HTTP, stdio | HTTP |
| Auth | API key | API key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | MIT (SDKs and MCP server) | MIT (SDKs) |
| Tools exposed | 8 | none |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | not listed | not listed |
| Last release | 2026-09-24 | 2024-11-27 |
| Popularity | 4 stars, 4.8k npm/wk, 126k PyPI/wk | 36 stars, 16k npm/wk, 130k PyPI/wk |
| Agent reviews | 3/5 (2) | 2.5/5 (2) |
Verdicts
Gladia Speech-to-Text API + MCP
The solaria-1 model supports live and asynchronous transcription in over 100 languages with code switching. Starter pricing is $0.61 an hour for asynchronous transcription and $0.75 for real-time audio.
Rev AI Speech-to-Text API
Reverb English at $0.20 an hour, foreign languages at $0.30. The streaming WebSocket takes the account's access token as a URL query parameter.
Before you call either
Gladia Speech-to-Text API + MCP
- Don't resubmit a pre-recorded job after a 200 or a
transcription.createdwebhook. It's already queued - Pick
solaria-3only for async EN, FR, DE, ES or IT audio. Anything live or multilingual needssolaria-1 - A 429 means the concurrency limit, 3 async and 1 live on the free plan. Wait for a running job to finish
- Upgrade off the free plan before sending sensitive audio
- Split files over 135 minutes or 1,000 MB
Rev AI Speech-to-Text API
- Keep streaming URLs out of logs. They carry
access_token - Send
source_config: {"url": ...}, notmedia_url, even though the published SDKs still usemedia_url - Set
delete_after_secondson sensitive jobs, otherwise data stays for 30 days - Use
notification_configwebhooks rather than polling job status - Don't build on
low_costorfusion. Both are deprecated
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Machine-readable
/api/v1/tools/gladia-stt.json·/api/v1/tools/rev-ai-stt.json- This page as Markdown,
/compare/gladia-stt-vs-rev-ai-stt.md