River AI Launches Training+Inference Stack, 20-60% Cheaper Than DeepSeek
ibab · x · 2026-10-13
ibab promotes River AI, a new "frontier AI lab in one API" platform.
- Inference pricing undercuts rivals: DeepSeek V4.1 Flash at $0.12 input / $0.48 output per 1M tokens — 20% cheaper than DeepSeek direct and 60% cheaper than Fireworks/Together; GLM-5.3 Flash likewise 20% below competitors, with cached input at $0.0024/1M.
- OpenAI-compatible API plus an RL training stack: fine-tune open models on expert data, then improve agents with reinforcement learning on a shared GPU fleet.
- Deploy on River Cloud or on-prem; customers include Perplexity (on-prem cluster) and Mixedbread.
Related event: River AI Launches Rust-Built Inference Stack at 20% Below Official Pricing(5 posts)→
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