GPT-5.6 Luna Pro is now available in ThinkReview

July 25, 2026
Thinkode AI
3 min read
OpenAIGPT-5.6GPT-5.6 Luna ProAI Code ReviewPull RequestsModel SelectionThinkReviewProfessional

GPT-5.6 Luna Pro is now available in ThinkReview

We're excited to announce that GPT-5.6 Luna Pro is now available in ThinkReview. Alongside GPT-5.6 Luna, Luna Pro is our Professional-tier option for teams that want the Luna efficiency profile with higher-effort reasoning on tougher pull requests. Use it today on GitHub, GitLab, Azure DevOps, and Bitbucket.

What is GPT-5.6 Luna Pro?

OpenAI's GPT-5.6 family spans Luna, Terra, and Sol. Luna is the fast, affordable tier. In ThinkReview, Luna Pro is the higher-effort Luna configuration for reviews that need more internal reasoning — without jumping all the way to a heavier flagship on every PR.

What that means in practice:

  • Same 5.6 Luna foundation — You stay in the GPT-5.6 generation OpenAI built for long-running professional and coding work.
  • Pro effort for harder diffs — Extra reasoning budget when a change spans auth, concurrency, migrations, or multi-service contracts.
  • Professional-tier capacity — Larger max patch size than standard Luna in our catalog, suited to denser merge requests.
  • Better signal on ambiguous PRs — More room to trace callers, edge cases, and failure modes before commenting.
  • Still Luna-shaped economics — Deeper than Lite Luna when it counts, without defaulting every review to Sol-class spend.

Choose GPT-5.6 Luna for everyday Lite volume; choose GPT-5.6 Luna Pro when the PR risk justifies Professional depth.

Why Luna Pro matters for code review

Flagship models are excellent — and expensive if you point them at every dependency bump. Luna Pro sits in the middle of that trade-off for ThinkReview teams:

  • Deeper first-pass analysis — Stronger coverage on multi-file features and refactors than a light Luna pass.
  • Actionable findings — Mechanism-level comments you can merge, dismiss, or send to an IDE agent via implement-from-review deeplinks.
  • Pairs with repository context — Connect a platform integration so Luna Pro can use related files and base-branch context when the bug isn't in the hunk.
  • One catalog, clear tiers — Free / Lite / Professional models stay distinct so teams can route PRs by risk.

How to use GPT-5.6 Luna Pro in ThinkReview

  1. Open ThinkReview settings — Click the extension icon and go to Settings or Model selection.
  2. Choose GPT-5.6 Luna Pro — Select it from the model dropdown for your reviews.
  3. Run a review — Open any pull request or merge request and start ThinkReview with your chosen model.

GPT-5.6 Luna Pro is available on Professional (and plans that include Professional models). Manage your catalog in Model Selection on the ThinkReview portal.

Where it works

Same as always: GitHub, GitLab, Azure DevOps, and Bitbucket Cloud. One extension, one workflow — now with GPT-5.6 Luna Pro for higher-effort AI reviews.

If you try GPT-5.6 Luna Pro on real PRs and have feedback, we'd love to hear it — open an issue on GitHub or reach out via thinkreview.dev.

Ready for higher-effort Luna reviews? Install ThinkReview or manage your models in the portal.

Model details reference OpenAI's GPT-5.6 announcement and the ThinkReview model catalog.