Gemini 3.1 Pro
gemini-3-1-pro-8e738d79·4 events·first seen 28d agoAliases: Gemini 3.1 Pro
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Gemini 3.1 Pro: A smarter model for your most complex tasks
Google DeepMind has announced Gemini 3.1 Pro, a new model positioned for complex reasoning tasks where simple answers are insufficient. The announcement comes from the official DeepMind blog, indicating a flagship-tier release. The body content is minimal, providing little technical detail beyond the positioning statement.
LoSoNA benchmark evaluates LLM adaptation to implicit local social norms in group chats
Researchers introduce LoSoNA, a benchmark for testing whether LLM-based agents can infer and adapt to unstated local conversational norms in multi-party chat scenarios. Each scenario presents a group-chat transcript where non-subject participants implicitly demonstrate a hidden norm, followed by an elicitor turn. Eight frontier and open-weight models are evaluated under four prompting conditions; naive prompting performs poorly for most models, while explicit norm-aware prompting yields uneven gains—Gemini 3.1 Pro reaches 84.2% and Claude Fable 5 reaches 81.6%. The work contributes to growing interest in evaluating LLM social and pragmatic capabilities beyond factual or reasoning tasks.
Z.ai's GLM-5.1 Open-Weights Model Targets Multi-Hour Agentic Coding Tasks with Iterative Self-Evaluation
Z.ai released GLM-5.1, a 754B parameter mixture-of-experts open-weights model optimized for long-running agentic coding tasks, capable of cycling through planning, execution, and strategy revision hundreds of times over sessions lasting up to eight hours. The model achieves top open-weights scores on the Artificial Analysis Intelligence Index and third place on Arena's Code leaderboard, while leading SWE-Bench Pro in Z.ai's own evaluations at 58.4 percent. Weights are available on HuggingFace under MIT license, with API pricing roughly 40 percent higher than its predecessor but still below comparable proprietary models. No technical report has been published, leaving architecture and training details undisclosed.
Claude Mythos Preview: Limited-Release Frontier Model with Exceptional Cybersecurity Capabilities
Anthropic has published a 244-page model card for Claude Mythos Preview, a frontier model not yet commercially available, which autonomously discovered thousands of high-severity vulnerabilities in popular operating systems and browsers during testing. To mitigate risks before potential deployment, Anthropic assembled Project Glasswing, a consortium of over 40 organizations including AWS, Apple, Google, Microsoft, and CrowdStrike, funded with $100M in model credits to patch vulnerabilities proactively. The model substantially outperforms Claude Opus 4.6, GPT-5.4, and Gemini 3.1 Pro across multiple benchmarks including CyberGym (83.1%), Terminal-Bench 2.0 (82%), GPQA Diamond (94.5%), HLE (64.7%), and GraphWalks long-context (80%). The Batch notes parallels to OpenAI's GPT-2 limited-release strategy and characterizes the announcement as having elements of a publicity stunt alongside genuine safety concerns.