ElevenLabs vs Grok Speech (STT + TTS APIs)
Which one should you pick? Here's the full breakdown.
ElevenLabs
Best-in-class AI voice generation -- now includes 11.ai (MCP-based voice assistant), Eleven v3 expressive speech, and IBM watsonx partnership. $500M raise at $11B valuation (Feb 2026)
Grok Speech (STT + TTS APIs)
xAI's standalone voice APIs -- launched 2026-04-17. Built on the stack that powers Grok Voice, Tesla vehicles, and Starlink customer support. $0.10/hr STT batch, $4.20 per 1M characters TTS, 25+ languages, word-level timestamps + speaker diarization
| Category | ElevenLabs | Grok Speech (STT + TTS APIs) |
|---|---|---|
| Ease of Use | 8.0 | 7.0 |
| Output Quality | 10.0 | 8.5 |
| Value | 7.0 | 9.0 |
| Features | 9.0 | 8.0 |
| Overall | 8.5 | 8.1 |
Pricing Comparison
| Feature | ElevenLabs | Grok Speech (STT + TTS APIs) |
|---|---|---|
| Free Tier | Yes | No |
| Starting Price | $0 | $0.10 |
Which Should You Pick?
Pick ElevenLabs if...
- ✓Higher output quality (10 vs 8.5)
- ✓Easier to use (8 vs 7)
- ✓More features (9 vs 8)
- ✓Has a free tier
Content creators who need the highest-quality voiceovers, audiobook producers, developers building voice-enabled apps, and enterprises using IBM watsonx wanting premium agentic voice. 11.ai alpha users who want voice-first AI assistants.
Visit ElevenLabsPick Grok Speech (STT + TTS APIs) if...
- ✓Better value for money (9/10)
Developers building voice agents, real-time transcription tools, accessibility features, or high-volume TTS workloads where the cost per hour of audio actually matters at scale. Strong fit for phone-call and meeting transcription use cases where xAI's published WER advantage (5.0% on phone-call entities vs. ElevenLabs 12.0%) compounds quickly.
Visit Grok Speech (STT + TTS APIs)Our Verdict
ElevenLabs edges out Grok Speech (STT + TTS APIs) with a 8.5 vs 8.1 overall score. Both are solid picks, but ElevenLabs has the advantage in output quality.