DeepSeek V4.1 Flash vs Gemini 3.8 Flash-Lite TTS

A direct, empirical evaluation of DeepSeek V4.1 Flash (DeepSeek-AI) against Gemini 3.8 Flash-Lite TTS (Google DeepMind).

DeepSeek V4.1 Flash

Developed by DeepSeek-AI · 552B parameters

High-throughput software engineering, autonomous coding loops, terminal agents, 1M long-context retrieval, and low-cost production inference.

Gemini 3.8 Flash-Lite TTS

Developed by Google DeepMind · Proprietary Lightweight Acoustic Stream Transformer parameters

High-throughput bulk multilingual video dubbing, automated notification dispatch, real-time voice agents, customer support telephony, and accessibility readers.

Metric DeepSeek V4.1 Flash Gemini 3.8 Flash-Lite TTS
SWE-bench Verified 67.2% 58.4%
MMLU-Pro 78.4% 82.1%
MATH-500 92.6% 85.2%
Context Window 1,000,000 tokens 64,000 characters input script
Input Pricing (per 1M) $0.06 $0.08
Output Pricing (per 1M) $0.22 $6.00