🌅 llm-sunset

Your app is about to break because an AI provider is shutting down the model it uses. llm-sunset tells you before it happens.

OpenAI, Anthropic, Google, Groq, Cohere and xAI retire models constantly, often with only a few months' notice. The model ID sits hard-coded in some config file and nobody notices until production starts returning 404 model_not_found.

llm-sunset scans your code, finds every AI model ID, and checks it against a daily-updated list of official deprecation notices.

$ llm-sunset
app/llm.py:12:23     error    OpenAI model 'gpt-4o-2024-05-13' retires 2026-10-23 (16 days left); replace with: gpt-5.6-sol
app/summarize.py:8:11  error  OpenAI model 'gpt-3.5-turbo' retires 2026-10-23 (16 days left); replace with: gpt-5.6-terra
config/models.yaml:3:8 error  Anthropic model 'claude-2.0' RETIRED on 2025-07-21 (443 days ago); replace with: claude-opus-4-8
worker/.env:2:7        warning Anthropic model 'claude-sonnet-4-5-20250929' retires 2026-11-30 (54 days left)

4 finding(s): 3 error(s), 1 warning(s)

• Zero dependencies. Pure Python standard library, Python 3.8+.
• Works offline. Ships with a bundled snapshot; uses live data when it can reach it.
• No API keys, and your code never leaves your machine. It only downloads a public JSON file.
• CI-ready. Comes with a GitHub Action, a pre-commit hook, SARIF output for GitHub code scanning, JSON and Markdown.
• Low noise. It matches exact model IDs (so gpt-4o-mini is not reported as gpt-4o, and gpt-4.1 is not reported as gpt-4) and skips prose docs, lockfiles and node_modules.

Install

pipx install llm-sunset     # or: pip install llm-sunset / uvx llm-sunset

Usage

llm-sunset                          # scan current directory
llm-sunset src/ config/             # scan specific paths
llm-sunset --provider openai        # only OpenAI notices (repeatable)
llm-sunset --fail-within 30         # only fail on models retiring within 30 days
llm-sunset --format json            # also: markdown, sarif, github
llm-sunset info gpt-4o-2024-05-13   # look up a model
llm-sunset upcoming --days 90       # every shutdown in the next 90 days

Exit code is 1 if any model is already retired or retires within --fail-within days (default 90). Use --no-fail to only report.

Ignoring things: put llm-sunset: ignore in a comment on a line, or llm-sunset: ignore-file anywhere in a file. Use --exclude 'tests/*' for paths. Markdown/RST/TXT files are skipped unless you pass --include-docs.

Azure, Vertex AI and Bedrock publish their own retirement dates for models they resell, which often differ from the original provider's dates. To avoid false alarms these are off by default. Turn them on with --provider azure or --provider all.

GitHub Action

# .github/workflows/llm-sunset.yml
name: llm-sunset
on:
  push:
  pull_request:
  schedule:
    - cron: "0 8 * * 1"   # also re-check weekly: deprecations are announced while your code sits still
jobs:
  check:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: Ashveil1/llm-sunset@v0
        with:
          fail-within: 60          # optional
          # provider: "openai anthropic"
          # exclude: "tests/*"

Findings appear as inline annotations on the PR, along with a summary table on the run page.

pre-commit

repos:
  - repo: https://github.com/Ashveil1/llm-sunset
    rev: v0.1.0
    hooks:
      - id: llm-sunset

GitHub code scanning (SARIF)

      - run: pipx run llm-sunset --format sarif --no-fail > llm-sunset.sarif
      - uses: github/codeql-action/upload-sarif@v3
        with:
          sarif_file: llm-sunset.sarif

Where the data comes from

Deprecation data comes from deprecations.info (source, MIT). It scrapes the official deprecation pages of OpenAI, Anthropic, Google Gemini and Vertex AI, AWS Bedrock, Azure AI Foundry, Cohere, Groq and xAI every day. llm-sunset caches it for 24 hours in ~/.cache/llm-sunset/ and falls back to a bundled snapshot that is refreshed weekly.

If you find a missing or wrong entry, please report it upstream at deprecations-rss. For false positives or negatives in matching, open an issue here.

Support the project

If llm-sunset saved you from a production outage, please consider sponsoring ❤️

License

MIT