Head to head
Gladia vs Rev AI
As a speech-to-text API, Gladia rates higher on the APIbenchmarks Index, 74 to 72.7, a 1.3-point gap. Here is how they compare on each criterion.
Criterion by criterion
| Criterion | Gladia | Rev AI |
|---|---|---|
| Documentation & DX | ||
| Reliability | ||
| Ecosystem & SDKs | ||
| Accessibility | ||
| APIbenchmarks Index | 74.0 | 72.7 |
Specifications
| Gladia | Rev AI | |
|---|---|---|
| Best for | All-inclusive STT for voice products | STT with human-transcription fallback |
| Free tier | 10 hrs/mo | 45 AI min/mo (English) |
| Pricing | Per hour (usage-based) | Per minute (usage-based) |
| Official SDKs | 6 languages | 5 languages |
Is Gladia better than Rev AI?
On the APIbenchmarks Index, Gladia rates higher (74 vs 72.7). It leads on the four weighted criteria, but price is reported separately, so the best choice still depends on your budget.
Verdict in one line
Gladia leads by 1.3 points (74 vs 72.7) and wins 3 of 4 criteria; Rev AI wins 1.
Winner by criterion
| Criterion | Winner | ||
|---|---|---|---|
| Documentation & DX | 78 | 74 | |
| Reliability | 70 | 74 | |
| Ecosystem & SDKs | 62 | 60 | |
| Accessibility | 88 | 85 |
Choose Gladia if… / choose Rev AI if…
- →documentation & dx matters most to you (78 vs 74)
- →ecosystem & sdks matters most to you (62 vs 60)
- →accessibility matters most to you (88 vs 85)
- →you need broad SDK coverage (6 official SDKs vs 5)
- →your use case matches its focus: all-inclusive stt for voice products
- →reliability matters most to you (74 vs 70)
- →your use case matches its focus: stt with human-transcription fallback
Pricing side by side
- Model
- Per hour (usage-based)
- Free tier
- 10 hrs/mo
- Free$0 (10 hrs/month)
- Starter (Pay-as-you-go)$0.61/hr async, $0.75/hr real-time
- Growth (Commitment)from $0.20/hr async, $0.25/hr real-time
- EnterpriseCustom (annual)
- Model
- Per minute (usage-based)
- Free tier
- 45 AI min/mo (English)
- Free credits5 hours free
- Reverb Transcription (English)$0.20/hour
- Reverb Turbo (English)$0.10/hour
- Reverb Foreign Language$0.30/hour
- Whisper Fusion / Whisper Large (English)$0.005/minute
- Human Transcription$1.99/minute
Vendor-published pricing, verified 2026-06-27 (Gladia) and 2026-06-27 (Rev AI).
SDK and language coverage
Both · 2
Python (official SDK)REST API (language-agnostic)
Only Gladia · 4
Node.js / JavaScript (official SDK)WebSocket streaming reference clientsGladiaPy (community Python client)AWS Marketplace listing
Only Rev AI · 3
Node.jsJavaWebSocket streaming
Strengths and weaknesses
- +Audio-intelligence features (diarization, translation, sentiment, PII redaction, language detection) are bundled into the base per-hour price rather than billed as separate add-ons
- +Strong, third-party-dataset accuracy on Solaria-3: 6.4% WER on Earnings22 business audio, beating AssemblyAI, ElevenLabs, Speechmatics, and Deepgram
- +Very competitive pricing with a real 10-hour/month free tier and committed rates as low as ~$0.20/hr async
- –Most published accuracy/latency benchmarks are vendor-run by Gladia itself, with limited fully independent third-party validation
- –Smaller ecosystem and community than US incumbents (fewer official SDKs, less third-party tooling and review volume)
- –No public status-page uptime figures; reliability rests on contractual SLAs rather than transparent metrics
- +Very low pricing, Reverb Turbo at $0.10/hr and Whisper models at $0.005/min are among the cheapest credible English ASR options
- +Unique human-transcription fallback (~99%+ accuracy) for cases where machine ASR is not enough
- +Strong accuracy on accented, diverse, and noisy real-world audio with an explicit bias-reduction story across accent/gender/ethnicity
- –Advanced features (sentiment analysis, topic extraction, human transcription) are English-only, limiting global teams
- –Top-tier competitors now publish lower clean-English WER (e.g. AssemblyAI Universal-3 ~1.56% pooled WER) than Rev's class
- –No public headline uptime percentage or self-serve SLA on the status page
Gladia vs Rev AI: questions
- Which has better documentation, Gladia or Rev AI?
- Gladia scores higher on documentation and developer experience: 78 vs 74 out of 100.
- Which is more reliable, Gladia or Rev AI?
- Rev AI scores higher on reliability: 74 vs 70 out of 100.
- Do Gladia and Rev AI have a free tier?
- Gladia: yes (10 hrs/mo). Rev AI: yes (45 AI min/mo (English)).
- How are Gladia and Rev AI priced?
- Gladia: Per hour (usage-based). Rev AI: Per minute (usage-based).
- Which has more official SDKs?
- Gladia lists 6 official SDKs, Rev AI lists 5.