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aider-ai/aider vs openai/codex

  • aider-ai/aider

    Stars

    48,966

    First recorded star in 2023.

  • openai/codex

    Stars

    124,128

    First recorded star in 2025.

Star history overlay
45k STARS3 YR 4 MOaider-ai/aider37kopenai/codex45k

aider-ai/aider: 36,645 stars on September 15, 2026. openai/codex: 45,434 stars on September 15, 2026.

Star history for aider-ai/aider
DateStars
May 10, 202312
May 24, 2023126
June 7, 2023273
June 23, 2023440
July 7, 20231775
July 22, 20232375
August 5, 20232827
August 20, 20233223
September 3, 20233483
September 18, 20233637
October 5, 20233800
October 20, 20234024
November 3, 20234202
November 18, 20234814
December 2, 20235052
December 17, 20235244
December 31, 20235503
January 14, 20245677
January 29, 20245902
February 12, 20246077
February 27, 20246238
March 12, 20246407
March 27, 20246744
April 10, 20247269
April 25, 20249025
May 9, 20249462
May 24, 20249765
June 7, 202410485
June 22, 202411598
July 6, 202412281
July 24, 202413818
August 7, 202415034
August 21, 202415789
September 5, 202416866
September 19, 202417974
October 4, 202419216
October 18, 202419841
November 2, 202420480
November 16, 202421303
December 1, 202421829
December 15, 202422333
December 30, 202423049
January 13, 202523817
January 28, 202524785
February 11, 202525885
February 26, 202526976
March 12, 202527830
March 27, 202528767
April 10, 202529584
April 25, 202530519
May 12, 202531309
May 26, 202531879
June 10, 202532293
June 24, 202532675
July 9, 202533003
July 23, 202533353
August 7, 202533705
August 21, 202533964
September 5, 202534192
September 19, 202534375
October 4, 202534519
October 24, 202534625
November 8, 202534726
November 22, 202534840
December 7, 202534969
December 21, 202535094
January 4, 202635275
January 19, 202635446
February 2, 202635597
February 17, 202635763
March 6, 202635996
March 21, 202636119
April 4, 202636210
April 19, 202636334
May 3, 202636408
May 19, 202636481
June 6, 202636538
July 2, 202636567
August 7, 202636587
September 15, 202636645
Star history for openai/codex
DateStars
April 16, 20254216
April 22, 202516497
April 28, 202517793
May 4, 202518333
May 10, 202518854
May 16, 202519532
May 23, 202523454
May 29, 202523803
June 4, 202524252
June 10, 202524628
June 18, 202524951
June 24, 202525187
June 30, 202525552
July 6, 202525746
July 12, 202525949
July 18, 202526121
July 25, 202526331
July 31, 202526481
August 6, 202526683
August 12, 202528289
August 18, 202528788
August 24, 202529208
August 31, 202530076
September 6, 202530871
September 12, 202531601
September 18, 202532735
September 24, 202533693
October 1, 202534408
October 7, 202534854
October 16, 202535104
October 23, 202535464
October 29, 202535699
November 5, 202535964
November 11, 202536161
November 17, 202536382
November 23, 202536552
November 29, 202536673
December 6, 202536907
December 12, 202537070
December 18, 202537859
December 24, 202538050
December 30, 202538219
January 5, 202638367
January 12, 202638677
January 18, 202638903
January 24, 202639184
January 30, 202639553
February 5, 202639867
February 12, 202640232
February 18, 202640541
February 25, 202640815
March 3, 202641086
March 9, 202641413
March 16, 202641717
March 22, 202641948
March 28, 202642104
April 3, 202642666
April 9, 202642905
April 16, 202643206
April 22, 202643445
April 28, 202643669
May 4, 202643868
May 10, 202644041
May 16, 202644174
May 23, 202644330
May 29, 202644484
June 4, 202644552
June 10, 202644639
June 16, 202644687
June 22, 202644724
June 30, 202644751
July 7, 202644774
July 15, 202644786
July 26, 202644797
August 11, 202644811
August 21, 202644876
August 27, 202644899
September 2, 202644915
September 8, 202645196
September 15, 202645434
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Repository health compared

Live analysis · unavailable data stays labelled

Popularity is only one axis. Compare technical scale, maintenance cadence, ownership resilience and change pressure against the same completed analysis that sits behind each report.

Reach

Popularity and real-world adoption

Signalaider-ai/aideropenai/codex
GitHub starsCurrent public GitHub metadata total.48,966Best result in this row: 124,128
Stars gained · trailing 90dChange in the newest 90 days covered by each cached series.+95Best result in this row: +747
ForksCurrent public GitHub metadata total.Not availableNot available
Largest package audienceLargest resolved registry total; sources are shown explicitly.No resolved packageNo resolved package
Repository ageElapsed years since the GitHub creation timestamp.3.4 years1.4 years

Codebase

Size and technical center of gravity

Signalaider-ai/aideropenai/codex
Dominant languageLargest share of analyzed code lines at current HEAD.Not availableNot available
Code linesAnalyzed source lines at current HEAD, excluding blanks and comments.Not availableNot available
Languages representedLanguages with non-zero files or line counts.Not availableNot available

Maintenance

Commit volume and recent operating cadence

Signalaider-ai/aideropenai/codex
Repository commitsFull repository commit total reported by the analysis.Not availableNot available
Commits · trailing 90dCommit count in the newest 90 days covered by the repository analysis.Not availableNot available

Ownership

How broadly maintenance responsibility is distributed

Signalaider-ai/aideropenai/codex
Bus factorFewest analyzed contributors carrying at least half the commits.Not availableNot available
Top contributor concentrationShare of attributed commits carried by the most active contributor.Not availableNot available

Change signals

Debt markers and fix pressure in frequently changed files

Signalaider-ai/aideropenai/codex
Fix-labelled share · frequently changed filesFix-labelled commits divided by commits across the analyzed high-frequency file set.Not availableNot available
Recent TODO/FIXME movementLatest cumulative marker count and its change over the trailing 90 days.Not availableNot available

Both curves are drawn on shared axes. They are not drawn from a shared source: each series names its own below.

One axis, two sources

The overlay puts both repositories on one axis. It does not put them on one source: since July 2026 a stargazer-list series stops on a fixed date, while a series rebuilt from public archive events keeps receiving points. Each column below states its own reading.

How the star series for aider-ai/aider and openai/codex were read
Fieldaider-ai/aideropenai/codex
SourceHistorical star dataHistorical star data
CoverageCovers through September 15, 2026Covers through September 15, 2026
StateStill updatingStill updating

No row states how much of a history is missing. An archive series records star actions and not unstars, so it can exceed a repository's own star total, and a figure for the difference would be wrong exactly where it looks most precise.

Notes on this comparison

  • Which has more GitHub stars, aider-ai/aider or openai/codex?

    GitHub reports 124,128 stars for openai/codex and 48,966 for aider-ai/aider.

  • Do both star histories cover the same period?

    Not necessarily, and each chart names its own. aider-ai/aider — Historical star data · Covers through September 15, 2026 · Still updating. openai/codex — Historical star data · Covers through September 15, 2026 · Still updating. Since July 2026 GitHub serves a repository's stargazer list only to its own admins and collaborators, so one series can stop on a fixed date while the other keeps flowing from public archive events.

  • How is this comparison computed?

    Star totals come from public repository metadata. The two curves are each repository's stored star series drawn on shared axes, from whichever source is named above. Repository-health figures are computed independently from each project's commit history.