AI Coding Live News

vLLM and OpenRouter Launch Day-0 Serving for DeepSeek-V4.1-Flash-1017: 830K tok/s per GPU and 1.3B Tokens/$ TCO on SemiAnalysis AgentX

Following the release of DeepSeek-V4.1-Flash-1017, vLLM announced Day-0 serving optimization delivering 1.3B tokens per dollar TCO and 830K tok/s per GPU at 100 tok/s/user on SemiAnalysis AgentX (5x agentic throughput gain since Day 0), while OpenRouter launched live multi-provider routing starting at $0.10/M input and $0.50/M output tokens.

vLLM and OpenRouter Launch Day-0 Serving for DeepSeek-V4.1-Flash-1017: 830K tok/s per GPU and 1.3B Tokens/$ TCO on SemiAnalysis AgentX

Key Takeaways

  • vLLM delivers 830K tok/s per GPU (cached + input + output) at 100 tok/s per user and 1.3B tokens/$ TCO on SemiAnalysis AgentX for DeepSeek-V4.1-Flash-1017 (5x faster since Day 0)
  • DeepSeek-V4.1-Flash-1017 reaches 77.0% on DeepSWE v1.1 (beating Claude Opus 5 at 74.0%), 68.2% on NL2Repo-Bench, and 72.1% on Apex Bench with shorter agentic outputs
  • Live on OpenRouter from $0.10/M input and $0.50/M output tokens, while DeepSeek's official API alias deepseek-flash remains at $0.15/M input and $0.60/M output
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LM Studio ships Inco Splash day 0: ~144 tok/s Qwen3.8-27B on M5 Max

LM Studio announced a day-0 partnership with Inco to bring the Splash inference engine into LM Studio. They cite up to about 144 tok/s for Qwen3.8-27B on M5 Max, with setup docs at lmstudio.ai/blog/splash-engine. Splash was already open-sourced by Inco; this puts the Apple-silicon-optimized stack inside LM Studio so local desktop users do not have to assemble the engine separately.

Key Takeaways

  • LM Studio integrates Inco Splash on day 0 for one-click local desktop use.
  • Claims ~144 tok/s for Qwen3.8-27B on M5 Max, with an official setup post.
  • Moves Apple-silicon-optimized inference into a mainstream local client distribution path.
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Inco open-sources Splash: ~144 tok/s for Qwen3.8-27B on M5 Max

Inco AI open-sourced Splash, a local inference engine built for Apple silicon and models like Qwen3.8-27B. On an M5 Max MacBook Pro it reports about 144 tok/s—up to 3× Ollama, 2× oMLX, and nearly 4× when an agent fans out sub-agents. LM Studio shipped day-0 support under Settings > Runtime > Experimental backends.

Key Takeaways

  • Open-source Splash: local inference tuned for Apple silicon and Qwen3.8-27B.
  • Demo: ~144 tok/s on M5 Max; up to ~3× Ollama / 2× oMLX, nearly 4× with agent fan-out.
  • LM Studio day-0 support; repo github.com/incoai/splash; blog lmstudio.ai/blog/splash-engine.
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