Agent Builder shuts down 30 Nov19 days

Model migrations for teams on OpenAI

Scan your code free for every model OpenAI is retiring. I move each call to its replacement and send a tested pull request within 48 hours.

Scan your code See prices

your-org/support-bot · pull request #214

sunsetfix-bot

4 retiring calls found

agents/triage.ts:4111 Dec

flows/onboarding.json:8814 Jan

voice/call.ts:920 Jan

stt/transcribe.py:2226 Feb

Move 4 calls off retiring OpenAI models

sunsetfix-bot wants to merge 1 commit into main

- model: "gpt-5-mini",

+ model: "gpt-5.6-terra",

+ reasoning: { effort: "low" },

20 saved inputs compared, 20 of 20 match

JSON output matches the schema

Cost per call compared

Ready to merge

6 shutdown dates before March

After each date, calls to the old model fail with model_not_found. The list comes from OpenAI's own page.

Read OpenAI's deprecations page

30 NovAgent Builder

11 Decgpt-5 family, o3

6 Jantts-1

14 Jangpt-4o, gpt-4.1

20 Janrealtime, voice

26 Febwhisper-1

days until Agent Builder stops: 19
days until gpt-5-mini stops: 30
days until gpt-4o-mini stops: 64
days until whisper-1 stops: 107

The free shutdown scanner

Paste code, a .env or an n8n, Make or Zapier export, or drop a folder. Each match shows its file, line, date and replacement. Nothing leaves your browser.

Clear the example and paste yours

InputStays on this device

Code or export

Drop files here, or choose files · a folder

Results

Results show here: the model, where it is, the day it stops and what replaces it.

From scan to merged in 48 hours

Give the migration bot read access

Give sunsetfix-bot read access, or send the n8n, Make or Zapier export. I never ask for passwords or API keys.

your-org/support-botzshmain

~/support-bot$node scan.mjs .

212 of 212 files

agents/triage.ts:41gpt-5-mini11 Dec

flows/onboarding.json:88gpt-4o-mini14 Jan

voice/call.ts:9gpt-realtime-mini20 Jan

stt/transcribe.py:22whisper-126 Feb

4 retiring callsscope sent
Migrate and test every model call

Every call goes to its replacement with the settings it needs. Your saved inputs run on the old and the new model.

support-botagents/triage.ts+3+4−2−3

@@ -40,9 +40,10 @@ async function triage(ticket) {

4040 const res = await openai.responses.create({

41 model: "gpt-5-mini",

41 model: "gpt-5.6-terra",

4242 text: { format: "json_object" },

42 text: { format: TicketSchema },

SFsunsetfix-bot2m Applied

Pin the schema: one field came back renamed in 1 of 20 inputs.

43 temperature: 0.2,

43 reasoning: { effort: "low" },

4444 input: ticket.body,

4545 });
Merge the migration pull request

The report rides along: what changed, which answers differ and the cost per call before and after. Seven days of fixes included.
Before you merge #214
5 of 5
- Model ids replaced
- Reasoning settings added
- JSON output checked
- 20 inputs, old and new
- Cost per call compared

Prices, fixed before you pay

Fix it once

Works with GitHub

Shutdown audit

$19924 h

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Every call, ranked by risk
Credited toward a migration

Model migration

$54948 h

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Up to 10 calls, one project
Tested pull request

Before 30 Nov

Agent Builder rescue

$99048 h

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One workflow on the Agents SDK
Your ChatKit widget kept

Agency pack

$1,4905 projects

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Reports under your name
50% books the slots

Watch: a monthly scan of your repos

SunsetFix checks your repos against OpenAI's deprecations list and opens a tested migration pull request before each date.

Early access: I set it up by hand for the first teams.

your-org/support-bot/sunsetfix/gpt-5-miniwatch14 minRunning

SFOpenAI notice: gpt-5-mini shuts down 11 Dec#215

Noticedeprecations page1 min
Scan3 repos2 min
Migrategpt-5.6-terra4 min
Compare20 saved inputsQueued
Pull request+ Slack alertQueued

ScansEvery week, plus one within 24 hours of any OpenAI notice.

FixesA tested pull request for every flagged call, within 48 hours of the notice.

AlertsBy email, or in Slack on Watch plus and Agency.

Watch plans: monthly, cancel any time

Watch

$199a month

Join Watch early

3 repos, scanned weekly
A tested pull request per flagged call
Email alerts

For most teams

Watch plus

$349a month

Join Watch plus early

10 repos, plus n8n, Make and Zapier exports
Slack alerts
Monthly cost-per-call report

Agency

$499a month

Join Agency early

25 repos across your clients
Reports under your name
A shared Slack channel

Questions before you book

Who does the work: Riccardo, an independent developer in Rome. I write the code with Claude and test every change before you see it. Replies the same day.

Email Riccardo

Is a migration more than one model name?

Often. The replacements handle reasoning, token limits and output format differently, so prompts can drift. The report shows whether they did.

Do you need our API keys?

No. You run the compare script with your own key, or add a temporary key to a test project you control.

What happens to Agent Builder workflows?

OpenAI's export gives Agents SDK code but does not convert the graph. I rebuild it, keep your ChatKit widget and test the answers.

Is Watch an app I install?

Not yet. In early access I connect it to your repos by hand, with read access and a bot account for the pull requests.

When is a migration paid?

After you approve the written scope. Late delivery or a failed test case means a full refund.