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Mistral raises €3B Series D at €21B+ for sovereign open-weight AI

Mistral closed a €3B Series D led by Samsung Electronics (co-led by Scaleup Europe Fund/EQT and PSG Equity) at a post-money valuation above €21B — the largest European tech equity round. Funds go to frontier research, training compute, and commercial expansion of its open-weight full stack.

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Artificial Analysis Coding Agent Index v2.0 swaps DeepSWE for FrontierCode; Claude Code with Opus 5.5 leads at 61.7

Launched Oct 23, v2.0 averages Cognition's private FrontierCode v1.1 (graded on whether a maintainer would merge the change), Terminal Bench 4.0, and re graded SWE Atlas QnA AA across 290 tasks, so scores reset below v1.5. Claude Code with Opus 5.5 tops it at 61.7 for $11.42 per task, while Codex with DeepSeek V4.1 Flash scores 47.3 for $0.39 (announcement)…

Artificial Analysis

Microsoft starts rolling out Copilot Code, a prompt-to-app builder inside Copilot, to Frontier users

Announced Oct 21 for late October, the Code tab in the Copilot app on Windows, Mac, and web builds trackers, dashboards, apps, and scripts from prompts grounded in your work data, then publishes them to Copilot Managed Runtime to share inside your org. It needs Frontier enrollment, a Microsoft 365 Copilot license, and a usage based spending policy, and local coding with your files and terminal stays off until an admin enables it (message center)…

Microsoft Learn

Codex CLI 0.164 adds /presets slots, inline /model and /permissions, and enterprise MCP sign-in

Released Oct 23, it saves reusable prompts and slash commands in ten numbered /presets slots, lets you set model, reasoning effort, and permission profiles inline with /model and /permissions , and authenticates enterprise MCP connections via Codex account grants or dedicated sign in. It also masks credentials in remote Bash and Zsh snapshot sessions and stops failed compaction from leaving partial summaries in history…

Haystack's intranet MCP server reaches ChatGPT, Copilot, and Slack, with write access from Oct 26

Announced Oct 22, the permission aware server that launched in Claude in August now also answers intranet questions in ChatGPT, Microsoft Copilot Studio, and Slack, with each employee signing in as themselves. From Oct 26, assistants on all four can also draft private knowledge pages and draft or publish group posts, an optional capability admins can block per tool…

Zed 1.25.2 stops leaking remote agent and MCP secrets to your local process list

Released Oct 21, it fixes environment variables, including secrets, passed to external agents and MCP servers in remote projects showing up in the local machine's process list, and stops prompts to external agents stalling on needless Git checkpoints. It also adds context compaction and session notices for ACP agents, new Bedrock models, and binaries about 33% smaller on macOS…

Zed Releases

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