DeepSeek V4.1 Flash hits Vercel AI Gateway claiming 1000 tokens/sec

Vercel launched deepseek-v4.1-flash-1017-ultrafast on its AI Gateway claiming over 1000 tokens/sec for coding and agents, but vendor speed claims conflict in testing; a home 4x3090 setup reached about 65 tokens/sec.

2026-11-08 ~ 2026-11-09 · 2 related posts

• Vercel lists DeepSeek V4.1 Flash 1017 at 1,000+ tok/s, but provider speed numbers don't add up — gajesh · 2026-11-08
• DeepSeek V4.1 Flash 1017 hits 1,000 tok/s on Vercel while a home 4x 3090 rig does 65 — AccBalanced · 2026-11-09