Fireworks: DeepSeek V4.1 Flash 1017 hits 1,521+ tok/s on Ultrafast

Fireworks says DeepSeek V4.1 Flash 1017 reaches 1,521+ tok/s on its Ultrafast tier, shipping Tetris in 11 seconds and running about 7x faster than Claude Opus 5.5.

Fireworks

@FireworksAI_HQArchived 6 days agoOriginally posted 2026.10.22

Fireworks @FireworksAI_HQOriginally posted 2026.10.22

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DeepSeek V4.1 Flash 1017 runs at 1,521+ tok/s on Fireworks Ultrafast. Fast enough to ship Tetris in 11 seconds, 7x faster than Claude Opus 5.5. Join the Ultrafast waitlist: https://bit.ly/3UA0wKq

x.com/fireworksai_hq/status/2112973992097468795Archived 2026.10.22 12:00

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