OpenAI raises bug bounties: critical flaws in ChatGPT, Codex and the API pay up to $30,000
OpenAI says it is more than quadrupling the midpoint of its medium, high and critical reward ranges and adds quality, loyalty and campaign bonuses.
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ChatGPT and Codex will share one token-based usage allowance from December
OpenAI says Plus, Pro and Business plans will draw ChatGPT and Codex use from a single allowance measured in tokens; Instant chat will not count against it.
OpenAI will honour a shared robots.txt token for opting out of AI training
The signal comes from an Internet-Draft published the same day with the policy token __usage_ai-training; OpenAI says it will implement it in the coming months and keep its own crawler rules.
Mistral Large 4 ships as open weights: 1T MoE, 49B active, 1M context
The model announced in early October is now downloadable; Mistral pitches it at defensive security, with 82% on Artificial Analysis' Cyber Index and a licence that limits model-as-a-service use.
NVIDIA's Nemotron 3.5 Transcribe tops open ASR leaderboard at 5.33% English WER
One open-weight checkpoint transcribes 40 languages, translates 31, labels up to eight speakers in hour-long audio, and takes plain-language prompts; Granary v2 data ships with it.
Google Research gives LLMs a sleep phase to learn after deployment
A wake-and-sleep cycle moves short-term context into newly unlocked MoE experts, which Google says retains knowledge up to 10M tokens without catastrophic forgetting.
OpenAI signs an AI-safety research agreement with Poland's NASK institute
NASK's AI Safety Research Center, Poland's national AI Safety Institute, will work with OpenAI on evaluating frontier systems and finding vulnerabilities.
FLUX.3 Image Klein lands in Diffusers: 5.6B open weights with bounding-box layout control
Black Forest Labs' new image model does text-to-image, multi-reference editing and region placement; the distilled checkpoint makes a 1024 x 1024 image in about 2 seconds on an H100.
Apertus 1.5: early-fusion images and audio, a 262k context and every training stage open
The Swiss open model's July weights now come with a technical report: 4 trillion extra tokens for the 8B model, a thinking mode, intermediate checkpoints and evaluation cards in the EvalEval schema.
Ai2's HiRO-ACEv2 emulates 3 km extreme weather at about 1/300th of the original's cost
The update to Ai2's climate emulator adds a downscaler that predicts several high-resolution fields at once and reproduces rare rain, wind and pressure extremes; models, notebooks and a demo are public.