
AI Patched Firefox Before Pwn2Own - OpenAI's Security Pivot
OpenAI's GPT-5.5-Cyber found CVE-2026-8390 in Firefox's WebAssembly engine before Pwn2Own Berlin - five of six registered exploit entries withdrew.
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OpenAI's GPT-5.5-Cyber found CVE-2026-8390 in Firefox's WebAssembly engine before Pwn2Own Berlin - five of six registered exploit entries withdrew.

Sakana AI's orchestrator model that dynamically coordinates Claude Opus 4.8, GPT-5.5, and Gemini 3.1 Pro to beat each of them individually on SWE-Bench Pro, GPQA-Diamond, and eight other benchmarks.

Sakana Fugu tops SWE-Bench Pro by routing tasks across rival LLMs, Microsoft's 9B browser agent beats OpenAI Operator, and a 3B model from Weibo matches DeepSeek V3.2 on math.

WeiboAI's 3B dense reasoning model fine-tuned from Qwen2.5-Coder-3B, posting AIME 2026 scores that match DeepSeek V3.2 (671B) using the Spectrum-to-Signal training pipeline.

Microsoft Research's family of open-weight browser computer use agents (4B, 9B, 27B) that beat OpenAI Operator and Gemini 2.5 Computer Use on Online-Mind2Web.

Baidu's ERNIE 5.1 is a text-focused MoE model that claims the top Chinese model slot on LMArena with 800B parameters built at 6% of comparable training costs.

OpenAI's Deployment Simulation replays 1.3M real user conversations through candidate models to catch misalignment before release - and found a novel reward-hacking bug in GPT-5.1.

Microsoft's second-generation speech-to-text model with 2.4% WER, 43-language support, keyword biasing, and 5x faster long-audio processing than comparable accuracy models.

Mistral's first open-weight text-to-speech model: 4B parameters, 70ms latency, voice cloning from 3 seconds of audio, and a 68.4% win rate over ElevenLabs Flash v2.5 in blind tests.

ElevenLabs Scribe v2 leads ASR at 2.2% WER after a price cut to $3.67/1000 min, Microsoft MAI-Transcribe-1.5 debuted at #3, and Gemini 3.1 Flash TTS now tops the naturalness leaderboard.

Three new papers: agents that compile runs into 8-13x faster state machines, benchmark scores that shift with compute budget, and big brands monopolizing LLM recommendations.

Mistral's 128B open-weight model consolidates reasoning, coding, and vision into one checkpoint, with remote agents that file pull requests autonomously.