Gemini 3.8 Flash TTS vs Muse Spark 1.3 (xhigh)
A direct, empirical evaluation of Gemini 3.8 Flash TTS (Google DeepMind) against Muse Spark 1.3 (xhigh) (Meta AI).
Gemini 3.8 Flash TTS
Developed by Google DeepMind · Proprietary Multimodal Acoustic Flow Matching Transformer parameters
High-fidelity expressive podcasts, interactive video game dialogues, scripted multi-speaker conversations, and prompt-designed custom character voices.
Muse Spark 1.3 (xhigh)
Developed by Meta AI · Proprietary Multimodal parameters
Autonomous codebase refactoring, terminal execution, million-token long context retrieval, and agentic workflows.
| Metric | Gemini 3.8 Flash TTS | Muse Spark 1.3 (xhigh) |
|---|---|---|
| SWE-bench Verified | 64.2% | 75.4% |
| MMLU-Pro | 88.5% | 88.4% |
| MATH-500 | 91% | 94.8% |
| Context Window | 128,000 characters input dialogue script | 1,000,000 tokens |
| Input Pricing (per 1M) | $0.15 | $1.25 |
| Output Pricing (per 1M) | $15.00 | $5.00 |