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AI Daily Brief — 22 January 2025

Wednesday delivered three simultaneous shocks. ByteDance released Doubao 1.5 Pro at API prices roughly 50x below GPT-4o and 200x below OpenAI o1, claiming Deep Thinking mode beats o1-preview on AIME. DeepSeek-R1 and Moonshot’s Kimi k1.5 both landed on arXiv as full technical reports — back-to-back signed papers describing how reasoning emerges from pure RL. And the post-Stargate feud caught fire: Elon Musk attacked the project’s funding on X, Sam Altman replied “wrong, as you surely know,” and Oracle stock rallied 13%.

Top stories

  • ByteDance launches Doubao 1.5 Pro — 200B sparse MoE, 20B activated, ~50% gross margin at 50x below GPT-4o. Doubao claims to surpass GPT-4o and Claude 3.5 Sonnet on comprehensive benchmarks and to beat o1-preview on AIME via a Deep Thinking mode. API pricing: $0.11 per million input tokens, $0.275 per million output tokens — ~5x cheaper than DeepSeek, ~50x cheaper than GPT-4o, and over 200x cheaper than OpenAI o1. Companion releases: Doubao 1.5 Vision Pro and Realtime Voice Pro. via SCMP · via AIBase
  • DeepSeek-R1 paper hits arXiv. “Incentivizing Reasoning Capability in LLMs via Reinforcement Learning” (2501.12948) details the GRPO-based pure-RL training of R1-Zero and the cold-start SFT pipeline of R1, plus the six distilled checkpoints. Becomes the year’s most-cited paper within weeks. via arXiv
  • Moonshot AI publishes the Kimi k1.5 paper. “Scaling Reinforcement Learning with LLMs” (2501.12599) details long-CoT scaling, long-context RL up to 128k, improved policy optimization, and a “long2short” transfer technique — explicitly skipping MCTS, value functions, and process reward models. via arXiv
  • Musk attacks Stargate funding; Altman replies. Musk on X: “They don’t actually have the money. SoftBank has well under $10B secured. I have that on good authority.” Later calls Altman “a swindler.” Altman: “Wrong, as you surely know. This is great for the country.” Sources close to Stargate counter with balance-sheet figures: SoftBank $24.3B cash, MGX $100B in commitments, Oracle $11B cash, OpenAI $10B+ from its recent round. via TechCrunch
  • Oracle rallies ~13% on Stargate role. Sell-side analysts raised price targets framing the JV as a multi-year tailwind for OCI revenue tied to OpenAI workloads — a structural re-rating catalyst. via Kiplinger

Who shipped

ByteDance and DeepSeek dominated the lab side. OpenAI, Anthropic, Google DeepMind, and Meta stayed silent on the product front; Anthropic’s enterprise-track work continued, while a plaintiffs’ filing publicly named co-founder Benjamin Mann as “arguably one of the most important witnesses” in an AI copyright case.

Open-source pulse

Day Two of global reaction to DeepSeek-R1. The viral US App Store surge was still four days away — but Hugging Face download counts and X commentary were already accelerating, and Doubao 1.5 Pro added the second Chinese closed-but-pricing-aggressive release of the week.

By the numbers

  • $0.11 / $0.275 — Doubao 1.5 Pro API per-million-token pricing
  • ~50x / >200x — Doubao pricing delta below GPT-4o / o1
  • +13% — Oracle one-day rally
  • 2 watershed RL-reasoning papers (R1, Kimi k1.5)
  • Most-mentioned lab: ByteDance

Compiled by AI Feed’s editor from verified web sources for 22 January 2025.