Best Codex use cases for research & science
3 real setups where the source names Codex for research and science, most-discussed first. Each one credits the person who did it and links the source.
Codex appears in 3 of the 15 research & science use cases on agentsetups, and in 69 use cases overall.
Most-discussed: Find an exoplanet candidate in NASA TESS data by /u/This_Cell_1829; Find where a photo was taken, showing the work by Oldcircle; Trace historical texts across languages by Benjamin Breen.
Quick start (from Find an exoplanet candidate in NASA TESS data by /u/This_Cell_1829):
- Use the agent to download and parse the TESS data, write the search code and fit transits.
- Check nearby stars, look for secondary eclipses and other false positives, plot, and rerun failed tests.
- You choose the questions, which tests matter and what counts as pass/fail.
+3 more steps in the copyable prompt.
Last updated · based on 336 use cases on agentsetups, each credited to its author.
All 3 Codex research & science use cases
- Find an exoplanet candidate in NASA TESS data
Claude Code ran 74 analyses and 1,000+ scripts; hidden-year transit predictions matched 3/3; Codex reviewed.
- Use the agent to download and parse the TESS data, write the search code and fit transits.
- Check nearby stars, look for secondary eclipses and other false positives, plot, and rerun failed tests.
- You choose the questions, which tests matter and what counts as pass/fail.
+3 more steps in the copyable prompt.
Claude, Codex · Research & science · by /u/This_Cell_1829 (Reddit, 7 Oct 2026) · source
- Find where a photo was taken, showing the work
geo-sleuth uses OpenStreetMap geometry, elevation skylines, satellite imagery and street view.
- Install the geo-sleuth skill.
- Give it the photo.
- It compares OSM geometry, elevation skylines, satellite imagery and street view, and shows its reasoning.
Claude, Codex · Research & science · by Oldcircle (GitHub, 18 Sep 2026) · source
- Trace historical texts across languages
Historian Benjamin Breen used GPT-6 Astra and Opus 5.5 on “tractable” history problems, e.g. identifying a Newton source.
- Check the problem: is it already identified by experts, fully digitised, suited to multilingual reasoning, code or large-dataset search, and provable or disprovable?
- Good fits: cryptography and codebreaking; tracing texts across translations (he identified a French source Newton freely translated into Latin); linking findings scattered across niche subfields.
- Work in collaborative groups with domain experts checking the results.
Claude, Codex · Research & science · by Benjamin Breen (blog, 24 Sep 2026) · source
Questions people ask
What is Codex used for in research and science?
Real examples from the sources: Find an exoplanet candidate in NASA TESS data (by /u/This_Cell_1829); Find where a photo was taken, showing the work (by Oldcircle); Trace historical texts across languages (by Benjamin Breen).
How do I set up Codex for research and science?
Copy a setup that already worked. Find an exoplanet candidate in NASA TESS data by /u/This_Cell_1829: 1) Use the agent to download and parse the TESS data, write the search code and fit transits. 2) Check nearby stars, look for secondary eclipses and other false positives, plot, and rerun failed tests. 3) You choose the questions, which tests matter and what counts as pass/fail. The use-case page has the full prompt to paste into Codex.
Codex vs Claude for research and science: which should I use?
agentsetups compares what people did, not which is better. In research & science, Codex has 3 use cases and Claude has 9; 3 name both. See Claude vs Codex for research & science.