Sora (Discontinued) vs Grok Speech (STT + TTS APIs)
Which one should you pick? Here's the full breakdown.
Sora (Discontinued)
OpenAI's text-to-video model -- DISCONTINUED March 24, 2026. Web/app shuts down April 26, 2026. API sunsets September 24, 2026. See alternatives: Veo 3.1, Kling 3.0, Seedance 2.0
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 | Sora (Discontinued) | Grok Speech (STT + TTS APIs) |
|---|---|---|
| Ease of Use | 7.0 | 7.0 |
| Output Quality | 8.0 | 8.5 |
| Value | 1.0 | 9.0 |
| Features | 4.0 | 8.0 |
| Overall | 5.0 | 8.1 |
Pricing Comparison
| Feature | Sora (Discontinued) | Grok Speech (STT + TTS APIs) |
|---|---|---|
| Free Tier | No | No |
| Starting Price | N/A | $0.10 |
Which Should You Pick?
Pick Sora (Discontinued) if...
Historical context. Anyone researching the AI-video space needs to understand why Sora failed -- it's a case study in how consumer-pricing + compute economics can kill a product even when the underlying tech is impressive. If you're looking for a working video generator today, skip Sora and go to Veo 3.1 (best quality, now free via Google Vids), Kling 3.0 (best value, free 66 credits/day), or Seedance 2.0 (best workflow if you already use CapCut).
Visit Sora (Discontinued)Pick Grok Speech (STT + TTS APIs) if...
- ✓Better value for money (9/10)
- ✓More features (8 vs 4)
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
Grok Speech (STT + TTS APIs) is the clear winner here with 8.1/10 vs 5.0/10. Sora (Discontinued) isn't bad, but Grok Speech (STT + TTS APIs) outperforms it across the board. Pick Sora (Discontinued) only if historical context.