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aider-ai/aider vs openai/codex

  • aider-ai/aider

    Stars

    48,993

    First recorded star in 2023.

  • openai/codex

    Stars

    124,657

    First recorded star in 2025.

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

aider-ai/aider: 36,649 stars on September 16, 2026. openai/codex: 45,487 stars on September 16, 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 15, 20245692
January 29, 20245902
February 13, 20246091
February 27, 20246238
March 13, 20246441
March 27, 20246744
April 11, 20247966
April 25, 20249025
May 10, 20249491
May 24, 20249765
June 8, 202410565
June 22, 202411598
July 6, 202412281
July 24, 202413818
August 7, 202415034
August 22, 202415888
September 5, 202416866
September 20, 202418057
October 4, 202419216
October 19, 202419874
November 2, 202420480
November 17, 202421337
December 1, 202421829
December 16, 202422372
December 30, 202423049
January 14, 202523900
January 28, 202524785
February 12, 202525954
February 26, 202526976
March 13, 202527891
March 27, 202528767
April 11, 202529634
April 25, 202530519
May 13, 202531357
May 27, 202531910
June 10, 202532293
June 25, 202532688
July 9, 202533003
July 24, 202533370
August 7, 202533705
August 22, 202533975
September 5, 202534192
September 20, 202534382
October 4, 202534519
October 25, 202534628
November 8, 202534726
November 23, 202534859
December 7, 202534969
December 22, 202535104
January 5, 202635289
January 20, 202635451
February 3, 202635600
February 18, 202635772
March 7, 202636003
March 22, 202636128
April 5, 202636223
April 20, 202636342
May 4, 202636411
May 20, 202636484
June 7, 202636539
July 3, 202636568
August 12, 202636588
September 16, 202636649
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 19, 202526159
July 25, 202526331
July 31, 202526481
August 6, 202526683
August 12, 202528289
August 19, 202528848
August 25, 202529320
August 31, 202530076
September 6, 202530871
September 12, 202531601
September 19, 202532986
September 25, 202533824
October 1, 202534408
October 7, 202534854
October 16, 202535104
October 24, 202535508
October 30, 202535735
November 5, 202535964
November 11, 202536161
November 17, 202536382
November 24, 202536567
November 30, 202536695
December 6, 202536907
December 12, 202537070
December 18, 202537859
December 25, 202538065
December 31, 202538234
January 6, 202638401
January 12, 202638677
January 18, 202638903
January 25, 202639295
January 31, 202639589
February 6, 202639935
February 12, 202640232
February 18, 202640541
February 26, 202640860
March 4, 202641132
March 10, 202641458
March 16, 202641717
March 23, 202641982
March 29, 202642124
April 4, 202642712
April 10, 202642961
April 16, 202643206
April 22, 202643445
April 29, 202643692
May 5, 202643879
May 11, 202644076
May 17, 202644197
May 23, 202644330
May 30, 202644504
June 5, 202644567
June 11, 202644643
June 17, 202644691
June 23, 202644725
July 1, 202644759
July 8, 202644775
July 16, 202644787
July 29, 202644800
August 12, 202644813
August 22, 202644883
August 28, 202644900
September 3, 202644920
September 9, 202645207
September 16, 202645487
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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.48,993Best result in this row: 124,657
Stars gained · trailing 90dChange in the newest 90 days covered by each cached series.+94Best result in this row: +791
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 16, 2026Covers through September 16, 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 124,657 stars for openai/codex and 48,993 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 16, 2026 · Still updating. openai/codex — Historical star data · Covers through September 16, 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.