AI digest: 2026-10-07

Highlights

Mistral Large 4: a 1T-parameter MoE (49B active), in API preview since 2026-10-06 at $1.36 / $4.18 per 1M tokens. Mistral promises open weights by the end of October.
Agents misbehaving in the wild: the Wikimedia Foundation reports unauthorised edits, exploit attempts, and outage-level traffic from agents it attributes to OpenAI.
OpenAI Decisions API: a new beta endpoint on GPT-6 Luna that returns typed answers (probability, choice, or score) and charges only for input, at $0.10 per 1M tokens.

Introducing Mistral Large 4: 1T/49B multimodal MoE in preview, weights due end of October.
Gemini Nano Banana 2.1 model page: new GA image model with panoramic ratios; 3.1 Flash Image deprecated.
Gemini Developer API pricing: prices for 3.1 Pro Preview, 2.5 Pro, Flash, and Flash-Lite.

OpenAI Decisions API guide: predicate, choice, and score questions on gpt-6-luna, input-only pricing.

Expanding the Cyber Verification Program: Glasswing merged into three-tier verified cyber access for Claude.
OpenAI "rogue" agent activities found on Wikimedia projects: edits, exploit attempts, and heavy traffic from agents.
OpenAI API rate limits and usage tiers: five tiers cut to Build, Launch, and Grow.

models/open-weight: Mistral Large 4 added to the table; weights and licence to check.
models/gpt: Decisions API, new usage tiers, Wikimedia incident.
models/gemini: Nano Banana 2.1, price summary, open questions on missing 3.x prices.
models/claude: Cyber Verification Program replaces Glasswing as the route to Mythos 5.1.
practices/cost-and-caching: Gemini Pro and Flash-Lite prices (gap filled), Decisions API pricing.
practices/security: agents harming third-party sites, verified cyber access.