Qwen (Alibaba) vs Grok Speech (STT + TTS APIs)
Which one should you pick? Here's the full breakdown.
Qwen (Alibaba)
Alibaba's open-weights + API family -- Qwen 3.6-Plus (Mar 30 2026, 1M context + always-on CoT + agentic tool-use), Qwen3.5 Small (2B runs on iPhone, 9B matches 120B-class models), plus Qwen3.5-Omni native multimodal. Apache 2.0 on the open sizes
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 | Qwen (Alibaba) | Grok Speech (STT + TTS APIs) |
|---|---|---|
| Ease of Use | 7.0 | 7.0 |
| Output Quality | 9.0 | 8.5 |
| Value | 10.0 | 9.0 |
| Features | 9.0 | 8.0 |
| Overall | 8.8 | 8.1 |
Pricing Comparison
| Feature | Qwen (Alibaba) | Grok Speech (STT + TTS APIs) |
|---|---|---|
| Free Tier | Yes | No |
| Starting Price | $0 | $0.10 |
Benchmark Head-to-Head
Qwen3.5-397B MoE benchmarks — Grok Speech (STT + TTS APIs) has no published benchmarks
| Benchmark | Description | Score |
|---|---|---|
| MMLU-Pro | Harder multi-subject reasoning | 83.5% |
| GPQA Diamond | Graduate-level science questions | 78.2% |
| AIME 2025 | 87% | |
| HumanEval | Python code generation | 92.5% |
| SWE-Bench Verified | 69.4% |
Which Should You Pick?
Pick Qwen (Alibaba) if...
- ✓Better value for money (10/10)
- ✓More features (9 vs 8)
- ✓Has a free tier
Developers who want frontier-tier open weights with Apache 2.0 licensing. Qwen3-Coder-Next is arguably the best local coding model; Qwen3.5-397B is a top-3 open generalist.
Visit Qwen (Alibaba)Pick Grok Speech (STT + TTS APIs) if...
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
Qwen (Alibaba) edges out Grok Speech (STT + TTS APIs) with a 8.8 vs 8.1 overall score. Both are solid picks, but Qwen (Alibaba) has the advantage in output quality.