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MODEL · ENTITY #3483

DeepSeek-V4-Pro

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4

RESEARCH · 1 SOURCE · arXiv cs.AI

StoreBench: live-commerce RL environment to evaluate autonomous operator LLM agents

StoreBench is a live-commerce reinforcement-learning environment (arXiv:2610.10942v1) where an agent runs a mid-size online apparel store through the same 29 merchant tools a human operator would use. It tests long-horizon planning and economic judgment under continuous, stochastic conditions with calibrated pass thresholds and hardened rewards; the authors benchmark seven frontier LLMs across multiple scenarios (none match a scripted smart-triage heuristic on average), show human operators outperform models, report a substantial few-task post-training gain for Qwen3.5-27B using GRPO, and release five example training tasks, ten sample trajectories, and scoring/verification tooling while withholding the full environment to avoid contamination.

7.0

RESEARCH · 1 SOURCE · Hugging Face

Microsoft’s ThinkingBox benchmark evaluates agents by backend state and is now on Hugging Face

ThinkingBox, a Microsoft benchmark that grades AI agents by the terminal backend state and side effects they leave (not just generated text), runs 507 stateful business workflows 20 times each and is now available through Hugging Face and runnable via OpenEnv. The paper and benchmark report substantial inconsistency: across 121,680 trials on 12 LLMs, 79,853 failed executable checks and many seemingly successful runs still produced wrong or missing database-side effects.

8.0

MODELS · 1 SOURCE · DeepSeek

DeepSeek launches DeepSeek‑V4.1‑Flash with new causal encoder–decoder and lower costs

DeepSeek announced DeepSeek‑V4.1‑Flash, a smaller-native-vision model using a new Causal Encoder–Decoder design (8B active params for input, 16B for output), new pretraining and larger-scale RL post-training, plus KV‑cache compression. The company is retiring V4‑Flash variants, routing deepseek-v4-pro traffic to V4.1‑Flash from 04:00 UTC on Sept 14, 2026, and changing pricing (new rates take effect 04:00 UTC on Sept 10, 2026) while partners WorkBuddy, CodeBuddy and OpenCode already support V4.1‑Flash.

8.0

MODELS · 1 SOURCE · DeepSeek

DeepSeek publishes open-source DeepSeek‑V4 preview with 1M-token context

DeepSeek has open-sourced a preview of DeepSeek‑V4, offering two variants: DeepSeek‑V4‑Pro (1.6T total / 49B active params) and DeepSeek‑V4‑Flash (284B total / 13B active params). The company says both models support a default 1M-token context, introduce novel token-wise compression and DSA (DeepSeek Sparse Attention), claim open-source state‑of‑the‑art agentic and reasoning performance (trailing only Gemini‑3.1‑Pro among models they compare to), and are available now via chat.deepseek.com and updated APIs with compatibility for OpenAI ChatCompletions & Anthropic endpoints; older models deepseek-chat and deepseek-reasoner will be retired on Jul 24, 2026 at 15:59 UTC.

8.0