Daily AI Zine
Friday, September 25, 2026
Issue No. 070 · Tokyo · full edition

✦ Today's Big Thing

The model race is now a routing problem

New model drops and price cuts matter less as announcements and more as a reason to assign the right model to each job.

7 min read · 7 sections

In Brief
  1. GPT-6 Sol and Luna are being reported at half the API price of their previous generation, with rollout into ChatGPT and Codex.
  2. Netlify’s AI Gateway and Agent Runners reportedly add Claude Opus 5.5 with no extra configuration.
  3. DeepL’s MCP support points toward less copy-paste in multilingual work across ChatGPT and Copilot.
  4. CoWork has no confirmed product move today, so the useful action is tightening the tool register.

Today's Big Thing

The one thing that matters

Test it

The model race has become a routing problem

The important shift is not one new model headline. It is that multiple frontier models are arriving close together, while price and availability keep changing across ChatGPT, Codex, Copilot, and Claude-facing workflows. OpenAI’s GPT-6 Sol and Luna are reported as half the API price of their previous generation, with rollout into ChatGPT and Codex. GitHub has also listed Sol and Luna as selectable Copilot models, while Claude Opus 5.5 is already visible in the same coding ecosystem. The practical move is to stop treating model choice as preference. Create one routing table: cheap draft, strong writing, long coding run, hard review, and final polish. Verdict: test, with one real task per lane before changing defaults.

My AI Ecosystem

Your actual stack

Test it

Netlify’s agent lane reportedly gets Claude Opus 5.5

Netlify is reported to have added Claude Opus 5.5 to AI Gateway and Agent Runners with no extra configuration, including use from Functions, Background Functions, Scheduled Functions, and Edge Functions. Treat this as a deployment convenience, not a model benchmark. If the report holds in your account, the useful test is a scheduled model check that runs the same prompt daily and logs output quality, latency, and cost.

Test it

DeepL’s MCP support cuts one multilingual workflow gap

DeepL is reported to support MCP, the connector standard that lets AI tools call outside services directly, so ChatGPT and Microsoft Copilot can translate without sending the user back and forth between apps. The immediate value is not novelty. It is fewer copy-paste steps in bilingual briefing, proposal, and review loops. Test it on one Japanese-English document where tone matters more than raw translation speed.

Use it

AGENTS.md is becoming the portable instruction layer

Claude Code release notes report AGENTS.md support when no CLAUDE.md file exists. AGENTS.md is a plain project instruction file that coding agents can read before acting. The value is portability: one repo can describe build commands, review rules, and forbidden operations for more than one agent. Do not rewrite every repo. Add it only where instructions are currently scattered across chat history, README notes, and memory.

CoWork Corner

Claude CoWork, day to day

CoWork has no new product signal, so update the tool register

Claude CoWork is the workspace Adrian uses for persistent projects, operational records, and AI-assisted workflows. No meaningful CoWork, Claude Desktop, Projects, or MCP product change was found in today’s candidates. The useful workflow to revisit is a one-page tool register inside each active project: what the assistant may access, what it must ask before touching, and what output counts as finished. This keeps persistent work safer when agents become more capable and more autonomous.

Tier 4 · quiet day, honest fallback

GPT Desk

OpenAI, ChatGPT, Codex

Test it

Route GPT-6 Sol and Luna by job type, not brand trust

OpenAI’s GPT-6 Sol and Luna are reported as new models trained with methods similar to Astra, with API pricing cut in half versus the prior generation and rollout into ChatGPT and Codex. Adrian should care because Grey Group OS, Daily Ops, and proposal work can quietly overpay if every task goes to the strongest default. Today’s action: make a four-row test sheet for one Goodsense or SET workflow, covering draft, research, code change, and final client-facing polish.

Test it

Use Sponsored Agents as a pitch prototype, not an ad buy

OpenAI says it is introducing AI-powered advertising experiences, including Sponsored Agents, marketer tools, and HubSpot and Shopify integrations. Adrian should care because Street Attack Japan and Goodsense can sell the idea before buying media: an interactive brand assistant can demonstrate a campaign mechanic in a deck. Today’s action: build one ChatGPT mockup for a sponsor pitch that answers three customer questions, recommends one action, and logs the conversation summary for follow-up.

Test it

GPT-Live-1 makes bilingual voice intake worth a contained test

GPT-Live-1 is reported as an API model for more natural full-duplex voice conversations, meaning both sides can speak with less rigid turn-taking. Adrian should care because Goodsense and Grey Group can test voice intake without building a full call center product. Today’s action: script a two-minute Japanese-English inquiry flow for one service, then have Codex stub the logging fields before any real caller touches it.

Small Money Systems

Small, repeatable, real

Use it

Small system: bilingual translation QA retainer

System: build a repeatable bilingual translation QA desk for decks, proposals, menus, captions, and event copy. Customer: small Japan-facing brands, visiting production teams, and local operators who need English-Japanese polish but cannot brief an agency every time. Offer: one monthly batch of translated or reviewed copy with tone notes and a client-ready change log. Price: 35,000 JPY per month. Existing assets: Goodsense, Japan-English business workflow, proposal habits, and production briefing templates. AI workflow: ChatGPT or Claude drafts, DeepL via MCP handles translation passes, and Claude Code or Codex can format the review sheet. First action: process one old deck page as the sample. Repeatability: each client reuses the same intake form and glossary. Effort: one hour. Expected value: recurring service revenue and cleaner proposals.

Test it

Small system: sponsored-agent pitch mockup

System: create a small Sponsored Agent-style pitch mockup for campaigns before media is bought. Customer: brands considering Street Attack Japan activations, pop-ups, or creator-led events. Offer: a working chat demo, three sample customer paths, and a one-page measurement plan. Price: 55,000 JPY per concept. Existing assets: Street Attack Japan positioning, Goodsense deck structure, prior production proposal instincts, and Grey Group sales follow-up. AI workflow: ChatGPT creates the agent dialogue, Codex turns it into a simple hosted demo, and Claude reviews the deck language. First action: choose one past sponsor category and write the first ten customer prompts. Repeatability: each new sponsor swaps the product facts and offer. Effort: half day. Expected value: paid pitch upgrades and warmer sponsor leads.

Test it

Small system: bilingual voice-intake pack

System: build a lightweight bilingual voice-intake pack for small service businesses and production vendors. Customer: operators who miss inquiries because English and Japanese calls, chats, and WhatsApp messages arrive in mixed formats. Offer: a scripted voice-agent flow, transcript summary, FAQ sheet, and handoff template. Price: 80,000 JPY setup plus 20,000 JPY monthly review. Existing assets: Goodsense, Grey Group OS, Japan-English workflow, and production planning checklists. AI workflow: GPT-Live-1 handles the spoken intake test, Codex builds the logging stub, and Claude turns transcripts into follow-up notes. First action: write the five questions every caller must answer. Repeatability: each customer gets the same base flow with industry-specific wording. Effort: half day. Expected value: setup revenue and reduced admin time.

Build Next

Deployable now

Test it

Build a Netlify model smoke test

What to build: a Scheduled Function that sends the same short task to one selected model through Netlify AI Gateway, then logs response time, visible failure, and a short human score. Why now: Netlify is reported to have added Claude Opus 5.5 to AI Gateway and Agent Runners, making hosted model trials easier to run beside existing deployments. Effort: one hour. Expected impact: lower model-switching risk and faster evidence for default choices. Dependencies: an active Netlify account, one existing project, and a small place to store daily results.

Test it

Build a translation review button for briefing docs

What to build: a small command that takes a bilingual brief, calls a translation service through an MCP-style connector, and returns three fields: meaning mismatch, tone issue, and final suggested line. Why now: DeepL is reported to support MCP, which reduces the need to move text manually between the AI workspace and a translation tool. Effort: half day. Expected impact: cleaner bilingual proposals and less review time. Dependencies: access to the translation connector, a repeatable brief format, and one approved glossary.

Try This Today

One action, right now

Create five rows: draft, research, coding, review, final polish. Put one model or tool in each row, then run the same real task through two rows today. Keep the winner only if it improves cost, speed, or output quality.