Based on using codex, I made a short video introducing the dsv4.1 flash architecture.
Ran FlappyBench on DeepSeek V4.1-Flash, GLM 5.3, and Kimi K3 with the same /design prompt.
🔹 DSV4.1-Flash: 9/10 · $0.0089 one-shot with the lowest cost 🔹 GLM-5.3: 9.5/10 · $0.0184 · nailed the UI but cost 2x more 🔹 Kimi K3: 8/10 · $0.0740 · hard-coded gameplay and 8x more
Got deepseek V4.1 flash running locally on a 16GB m1 mac mini
Original FP4/FP8 weights, ssd streaming + custom mlx runner 108s ttft and about 23s/token (not to be confused with tok/s)
DeepSeek V4.1 flash is no longer hidden. Starting from 9/14
DeepSeek V4.1 flash is no longer hidden. Starting from 9/14, Pro file requests will be automatically routed to Flash and priced accordingly - which is equivalent to a price reduction across the board. I think Liang Sheng is back. After testing several cases, the speed is really amazing. Is this still the same DeepSeek that asked questions and waited for half a year for answers?
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