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    "lede": "Three things happened this week that change how agents get built. Agents got a cheap way to decide, a draft standard to declare who they work for, and Google's coding agent users got told to depart."
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  "markdown": "This is a preview. The week isn't over, and the final version goes up on Sunday 11 October.\n\n- 5: decision models launched or updated\n- 4: dates on Sunsets from Google's Gemini changes\n- 1: draft standard for agents to say who they work for\n\nThe week of 5 to 10 October 2026 on Anchor Terminal\n\n## 1. Decide. The big labs ship decision models\n\nOpenAI opened its Decisions API in public beta on 6 October, at $0.10 per million input tokens on gpt-6-luna [[1]](#ref-1). [Celeris-1](/tools/celeris-1-decision) launched on 8 October. On 9 October Microsoft put Microsoft-Decision-1 into public preview on Foundry and OpenRouter at $0.042 per million input tokens, post-trained from Qwen3.5-9B [[2]](#ref-2), and Cloudflare added Clef-omni, which takes images, audio and video, and cut Clef-flash to $0.038 [[3]](#ref-3). Nace published the Drex 1.5 weights [[4]](#ref-4).\n\n**Impact.** A month ago a decision model was a startup's bet. Now OpenAI, Microsoft, Cloudflare, Perplexity and AWS all have one, so it's a standard part of an agent. The small calls in an agent loop (which tool, is this safe, is it done) no longer need a general model, and they cost cents per million tokens. The other side is that every one of those calls tells the vendor what you were choosing between. I wrote about that in [Decision models are popping up like mushrooms after the rain](/blog/decision-models-everyone-wants-your-decisions).\n\nOn the site: [the decision model shortlist](/best/decision-models/), [every head-to-head](/compare/decision-models/), and the new listings for [Microsoft-Decision-1](/tools/microsoft-decision-1) and [Drex 1.5](/tools/nace-drex). Microsoft's grades E for now. It's a preview with no licence, retention terms or rate limits published, and that can change fast.\n\n## 2. Declare. Agents get a draft standard for who they work for\n\nSierra announced the Personal Agent Protocol with Meta, Genesys, Instinct, Rocket, Shopify, Stripe and Walmart on 6 October [[5]](#ref-5), and the first draft went up on 9 October [[6]](#ref-6). It's mostly OAuth. A personal agent has an identity a company can check, a user ID that's different at every company, scopes the user grants and can revoke, and an optional step where the agent confirms an action before the company does it.\n\n**Impact.** Today a company can't tell your agent from a scraper. If this gets adopted, agents that declare themselves get let in, and agents that don't get blocked. It doesn't cover payments yet, so for now it sits next to [x402](/tools/x402), [AP2](/tools/ap2) and [ACP](/tools/acp) rather than replacing them. More in [the Personal Agent Protocol, read by people who list agent tools](/blog/personal-agent-protocol-first-draft).\n\n## 3. Depart. Google moves its coding agents to Antigravity\n\nGoogle stopped selling new Gemini Code Assist Standard and Enterprise subscriptions on 9 October. Seats can be added and annual plans renewed until 31 January 2027, and monthly plans renew until 31 December 2027 [[7]](#ref-7). The free Google sign-in for Gemini CLI already stopped serving on 18 June [[8]](#ref-8), and Antigravity CLI is the replacement [[9]](#ref-9).\n\n**Impact.** If an agent or a script runs Gemini CLI with a Google sign-in, it's been failing since June. It keeps working with a paid Gemini API key. Antigravity CLI is a closed-source binary where Gemini CLI is Apache-2.0, so teams that chose Gemini CLI because they could read the code lose that. We had this one wrong. Our [Gemini CLI](/tools/gemini-cli) listing still described the free tier, and it's corrected now, with all four dates on [Sunsets](/sunsets/) and [Antigravity CLI](/tools/antigravity-cli) listed.\n\n## Also this week\n\n- DeepSeek V4 Flash was retired on Novita AI on 9 October, replaced by V4.1 Flash, and DeepInfra redirected three models to newer ones. Each is on [Sunsets](/sunsets/) [[10]](#ref-10).\n- Hume's TTS and EVI APIs close on 13 November 2026, five weeks from now. [Hume EVI](/tools/hume-evi) lists the alternatives.\n- New head-to-heads include [Clef against Microsoft-Decision-1](/compare/cloudflare-clef-vs-microsoft-decision-1) and [Microsoft-Decision-1 against OpenAI's Decisions API](/compare/microsoft-decision-1-vs-openai-decisions-api).\n\n## References\n\nRead on 10 October 2026. Prices and benchmark figures are the vendors' own.\n\n[1] OpenAI, Decisions API guide. Source for the public beta, gpt-6-luna and the $0.10 price. https://developers.openai.com/api/docs/guides/decisions\n\n[2] Microsoft, Microsoft-Decision-1 in Microsoft Foundry, 9 October 2026. Source for the launch, the price and the Qwen3.5-9B base. https://commandline.microsoft.com/microsoft-decision-1-model-foundry/\n\n[3] Cloudflare, Clef gets faster, cheaper and multimodal, 9 October 2026. Source for Clef-omni and the Clef-flash price. https://blog.cloudflare.com/clef-faster-cheaper-multimodal/\n\n[4] Nace, Drex 1.5 on Hugging Face. Source for the published weights. https://huggingface.co/nace-ai/drex-v1.5\n\n[5] Sierra, Introducing Personal Agent Protocol, 6 October 2026. Source for the announcement and the launch partners. https://sierra.ai/blog/introducing-personal-agent-protocol\n\n[6] Personal Agent Protocol, draft 0.1 specification, 9 October 2026. Source for identity, user IDs, scopes, revocation and confirmed operations. https://personalagentprotocol.org/docs/spec\n\n[7] Google Cloud, Gemini feature deprecations, updated 9 October 2026. Source for the end of sale and the January and December 2027 dates. https://docs.cloud.google.com/gemini/docs/deprecations/features\n\n[8] Google, Gemini Code Assist consumer accounts, updated 9 October 2026. Source for the end of the Google sign-in on 18 June 2026. https://developers.google.com/gemini-code-assist/docs/deprecations/code-assist-individuals\n\n[9] Google, Transitioning Gemini CLI to Antigravity CLI, 19 May 2026. Source for Antigravity CLI replacing Gemini CLI and paid API keys still working. https://developers.googleblog.com/an-important-update-transitioning-gemini-cli-to-antigravity-cli/\n\n[10] Anchor Terminal, Sunsets. Source for the DeepSeek, DeepInfra and Hume dates, each with the vendor's notice. https://www.anchorterminal.com/sunsets/\n\nOur [changelog](/changelog/) has what we changed on the site this week.\n\n---\n\n- Older: [Decision models are popping up like mushrooms after the rain](https://www.anchorterminal.com/blog/decision-models-everyone-wants-your-decisions.md)\n- Newer: [The Log, issue 1: decide, declare, depart](https://www.anchorterminal.com/blog/the-log/issue-1-decide-declare-depart.md)\n- All posts: https://www.anchorterminal.com/blog/index.md\n",
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    "description": "Preview, final on 11 October. The three biggest things for agent tools in the week of 5 October 2026. OpenAI and Microsoft ship decision models, Sierra and Meta publish the Personal Agent Protocol, and Google moves its coding agents to Antigravity. What each one changes.",
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    "title": "Week 41 in agent tools: decision models, PAP, Gemini to Antigravity | Anchor Terminal",
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