Cohere: Qwen3.8-Flash-Next Tried to Upload a File to Beijing Bucket While Saying It Would Call No Tools

Tencent Holdings said it stripped its latest Hy4 model of cyber-hacking capabilities while retaining cyber defence capabilities. Moonshot AI made a similar move with Kimi K3.1 Pro, according to the South China Morning Post.

Google's Gemini 4 Carbon (high) leads the MathArena math benchmark with an expected performance of 85.4%, ahead of Anthropic's Claude Fable 5.2 (max) at 82.8% and OpenAI's GPT-6.1 Sol (max) at 80.6%. With the reasoning settings used in testing, Carbon costs roughly 15 times as much as GPT-6.1 Sol.

Anthropic says users should remove phrases like "think hard" from prompts for Claude Opus 5.5, which reasons adaptively on its own. The company also recommends starting at the default Medium effort level, which it says matches Opus 5 on High in internal tests.

UniPat AI has released Science Prediction Universe (SPU), a benchmark of 116 tasks and 4,207 wet-lab experiments. Claude Opus 5.5 posted the highest average score, 0.486, but beat the random-ranking threshold on only half of its tasks. Raising GPT-6 Astra's reasoning effort multiplied runtime and cost without a visible score gain.

Jacob Coxon, a former OpenAI and Anthropic researcher, says Anthropic could already retrain Mythos with "a fraction of the compute originally needed." He points to a slide from Anthropic's IPO roadshow as evidence of accelerating algorithmic efficiency, and says it was a key reason he left after about four months.

Runway has released Praxis-1, a robot control model, with open weights and source code under the Apache 2.0 license. It scores 46.2 percent on Nvidia's RoboLab-120 leaderboard, ahead of FLUX 3 Action at 42.9 percent, in tests Runway ran itself.

Meituan's LongCat team has published LongCat-2.5, a native multimodal mixture-of-experts model with 1.6 trillion total parameters and approximately 48 billion activated per token. It targets long-horizon agentic tasks such as codebase development and full-project builds, and ships with W4A4 expert quantization for domestic AI accelerators.

MOSI Intelligence and Fudan University's OpenMOSS team report that MOSS-Live ranked first on all six full-duplex metrics against GPT-Live-1, GPT Realtime 2.1, Doubao SeedDuplex and two Qwen Audio 3.0 models. It trails GPT-Live-1 on τ-Voice (57.93% vs 67.68%) and on multi-turn instruction following. All figures are vendor-published.

Tencent Hunyuan announced Hy Realtime on November 13, a real-time voice model that decides on its own when to run a web search and can sing songs on request. It is live in Tencent Yuanbao voice calls and Tencent's customer service, with a Tencent Cloud API to follow. API pricing has not yet been disclosed.

DeepSeek has made the capabilities behind its app available as standalone APIs: Search and Fetch, OCR, ASR and TTS. It also open-sourced chat-demo, a static web client that connects to the API from the browser. Tool use is billed on top of tokens.

GitHub will deprecate selected models across all GitHub Copilot experiences on December 14, 2026. The change covers Copilot Chat, inline edits, ask and agent modes, and code completions.

Gemini 4 Hydrogen, described by GitHub as Google's latest Flash model, is now generally available in GitHub Copilot. GitHub says it is designed for fast, efficient agentic coding, tool use, and multistep workflows.