AI Index / Hackathon and challenge platforms / History

Hackathon and challenge platforms — AI Recommendation History

What AI assistants recommended for hackathon and challenge platforms, date by date. Every ranking we publish is frozen the day it publishes, so this is a record of what was said — not a re-computation of what today's data would say about the past.

Record: 26 dated snapshots · Aug 14, 2026 – Sep 8, 2026

Answer archive Methodology Data studies JSON

What changed

Computed by comparing each dated snapshot with the one before it. Share moves smaller than 1pp are treated as noise and left out — the same threshold that suppresses trend arrows on the ranking.

Sep 8, 2026vs Sep 7, 2026

No change above the noise floor.

Sep 7, 2026vs Sep 6, 2026

No change above the noise floor.

Sep 6, 2026vs Sep 5, 2026

No change above the noise floor.

Sep 5, 2026vs Sep 4, 2026

No change above the noise floor.

Sep 4, 2026vs Sep 3, 2026

No change above the noise floor.

Sep 3, 2026vs Sep 2, 2026

No change above the noise floor.

Sep 2, 2026vs Sep 1, 2026

No change above the noise floor.

Sep 1, 2026vs Aug 31, 2026

No change above the noise floor.

Aug 31, 2026vs Aug 30, 2026

No change above the noise floor.

Aug 30, 2026vs Aug 29, 2026

Methodology change: extraction rules 4-7 → 7 between these dates. Differences below may reflect the rule change rather than a change in what AI recommends — see the methodology changelog.

▲ INUnstop entered the top 10 (#11 → #8)
▼ OUTHackathon.com left the top 10 (#10 → #11)
▲Unstop moved #11 → #8
▼MLH moved #7 → #9
▲Agorize moved #8 → #7
▼Devfolio moved #9 → #10
▼Hackathon.com moved #10 → #11
▲Brightidea +5pp (41.7% → 46.7%)
▲Agorize +4.5pp (22.2% → 26.7%)
▲Unstop +4.5pp (22.2% → 26.7%)
▼HackerEarth Assessments -4.4pp (61.1% → 56.7%)
▼Devpost -3.9pp (80.6% → 76.7%)
▼Eventornado -2.8pp (36.1% → 33.3%)
▲HYPE +2.2pp (27.8% → 30%)
▲MLH +1.7pp (25% → 26.7%)
▲Devfolio +1.1pp (22.2% → 23.3%)
▲Hackathon.com +1.1pp (22.2% → 23.3%)

Aug 29, 2026vs Aug 28, 2026

▲ INMLH entered the top 10 (#11 → #7)
▲ INAgorize entered the top 10 (#13 → #8)
▲ INHackathon.com entered the top 10 (#12 → #10)
▼ OUTSlack left the top 10 (#6 → #13)
▼ OUTDiscord left the top 10 (#8 → #12)
▼ OUTUnstop left the top 10 (#9 → #11)
▼Slack moved #6 → #13
▲Agorize moved #13 → #8
▲MLH moved #11 → #7
▼Discord moved #8 → #12
▲Hackathon.com moved #12 → #10
▼Unstop moved #9 → #11
▲Brightidea moved #5 → #4
▼Eventornado moved #4 → #5
▲HYPE moved #7 → #6
▲Devfolio moved #10 → #9
▼Slack -9.3pp (31.5% → 22.2%)
▼TAIKAI -6.5pp (53.7% → 47.2%)
▼Discord -5.6pp (27.8% → 22.2%)
▲HackerEarth Assessments +5.5pp (55.6% → 61.1%)
▼Eventornado -4.6pp (40.7% → 36.1%)
▼Unstop -3.7pp (25.9% → 22.2%)
▼Devfolio -1.9pp (24.1% → 22.2%)
▲Agorize +1.8pp (20.4% → 22.2%)
▲Devpost +1pp (79.6% → 80.6%)
▲Brightidea +1pp (40.7% → 41.7%)

Aug 28, 2026vs Aug 27, 2026

No change above the noise floor.

Aug 27, 2026vs Aug 26, 2026

No change above the noise floor.

Aug 26, 2026vs Aug 25, 2026

No change above the noise floor.

Aug 25, 2026vs Aug 24, 2026

▲HYPE moved #9 → #7
▼Unstop moved #7 → #9
▲HYPE +4pp (23.8% → 27.8%)
▲Discord +4pp (23.8% → 27.8%)
▲Devfolio +2.7pp (21.4% → 24.1%)
▲Brightidea +2.6pp (38.1% → 40.7%)
▼Eventornado -2.2pp (42.9% → 40.7%)
▼Devpost -1.4pp (81% → 79.6%)
▼TAIKAI -1.1pp (54.8% → 53.7%)

Aug 24, 2026vs Aug 23, 2026

Methodology change: extraction rules 4 → 4-7 between these dates. Differences below may reflect the rule change rather than a change in what AI recommends — see the methodology changelog.

▲ INDevfolio entered the top 10 (#13 → #10)
▼ OUTDoraHacks left the top 10 (#10 → #17)
▼DoraHacks moved #10 → #17
▲Devfolio moved #13 → #10
▲HackerEarth Assessments moved #4 → #2
▲Unstop moved #9 → #7
▼TAIKAI moved #2 → #3
▼Eventornado moved #3 → #4
▲Brightidea moved #6 → #5
▼Slack moved #5 → #6
▼Discord moved #7 → #8
▼HYPE moved #8 → #9
▼DoraHacks -10.7pp (25% → 14.3%)
▼Eventornado -9.9pp (52.8% → 42.9%)
▲HackerEarth Assessments +7.6pp (47.2% → 54.8%)
▼TAIKAI -6.3pp (61.1% → 54.8%)
▼Slack -5.1pp (36.1% → 31%)
▼Discord -4pp (27.8% → 23.8%)
▼HYPE -4pp (27.8% → 23.8%)
▲Devpost +3.2pp (77.8% → 81%)
▲Brightidea +2pp (36.1% → 38.1%)
▲Unstop +1.2pp (25% → 26.2%)

Aug 23, 2026vs Aug 22, 2026

No change above the noise floor.

Aug 22, 2026vs Aug 21, 2026

▲Eventornado moved #4 → #3
▼HackerEarth Assessments moved #3 → #4
▲Eventornado +5.2pp (47.6% → 52.8%)
▼Devpost -3.2pp (81% → 77.8%)
▼HackerEarth Assessments -2.8pp (50% → 47.2%)
▲Brightidea +2.8pp (33.3% → 36.1%)
▲TAIKAI +1.6pp (59.5% → 61.1%)
▲HYPE +1.6pp (26.2% → 27.8%)
▲Unstop +1.2pp (23.8% → 25%)
▲DoraHacks +1.2pp (23.8% → 25%)

Aug 21, 2026vs Aug 20, 2026

No change above the noise floor.

Aug 20, 2026vs Aug 19, 2026

▲ INDiscord entered the top 10 (#13 → #7)
▲ INDoraHacks entered the top 10 (#11 → #10)
▼ OUTHackerEarth left the top 10 (#7 → #11)
▼ OUTStackUp left the top 10 (#9 → #14)
▲Discord moved #13 → #7
▼StackUp moved #9 → #14
▼HackerEarth moved #7 → #11
▲HackerEarth Assessments moved #4 → #3
▼Eventornado moved #3 → #4
▲Slack moved #6 → #5
▼Brightidea moved #5 → #6
▲Unstop moved #10 → #9
▲DoraHacks moved #11 → #10
▼StackUp -6.9pp (25.9% → 19%)
▼HackerEarth -6.4pp (27.8% → 21.4%)
▼Eventornado -6.1pp (53.7% → 47.6%)
▲Discord +4.5pp (24.1% → 28.6%)
▲HackerEarth Assessments +3.7pp (46.3% → 50%)
▲Slack +2.4pp (33.3% → 35.7%)
▼Unstop -2.1pp (25.9% → 23.8%)
▼DoraHacks -2.1pp (25.9% → 23.8%)
▼Brightidea -1.9pp (35.2% → 33.3%)
▼HYPE -1.6pp (27.8% → 26.2%)
▲Devpost +1.4pp (79.6% → 81%)

Aug 19, 2026vs Aug 18, 2026

No change above the noise floor.

Aug 18, 2026vs Aug 17, 2026

No change above the noise floor.

Aug 17, 2026vs Aug 16, 2026

No change above the noise floor.

Aug 16, 2026vs Aug 15, 2026

No change above the noise floor.

Aug 15, 2026vs Aug 14, 2026

No change above the noise floor.

The ranking, date by date

Top 10 on each archived date, exactly as published. Cite a date and it stays true: snapshots are append-only, and a correction appends a new revision rather than overwriting the original.

Sep 8, 202630 sampled answers · window 2026-08-11 – 2026-09-08 · rules v7

#1Devpost76.7%
#2HackerEarth Assessments56.7%
#3TAIKAI46.7%
#4Brightidea46.7%
#5Eventornado33.3%
#6HYPE30%
#7Agorize26.7%
#8Unstop26.7%
#9MLH26.7%
#10Devfolio23.3%

Sep 7, 202630 sampled answers · window 2026-08-10 – 2026-09-07 · rules v7

#1Devpost76.7%
#2HackerEarth Assessments56.7%
#3TAIKAI46.7%
#4Brightidea46.7%
#5Eventornado33.3%
#6HYPE30%
#7Agorize26.7%
#8Unstop26.7%
#9MLH26.7%
#10Devfolio23.3%

Sep 6, 202630 sampled answers · window 2026-08-09 – 2026-09-06 · rules v7

#1Devpost76.7%
#2HackerEarth Assessments56.7%
#3TAIKAI46.7%
#4Brightidea46.7%
#5Eventornado33.3%
#6HYPE30%
#7Agorize26.7%
#8Unstop26.7%
#9MLH26.7%
#10Devfolio23.3%

Sep 5, 202630 sampled answers · window 2026-08-08 – 2026-09-05 · rules v7

#1Devpost76.7%
#2HackerEarth Assessments56.7%
#3TAIKAI46.7%
#4Brightidea46.7%
#5Eventornado33.3%
#6HYPE30%
#7Agorize26.7%
#8Unstop26.7%
#9MLH26.7%
#10Devfolio23.3%

Sep 4, 202630 sampled answers · window 2026-08-07 – 2026-09-04 · rules v7

#1Devpost76.7%
#2HackerEarth Assessments56.7%
#3TAIKAI46.7%
#4Brightidea46.7%
#5Eventornado33.3%
#6HYPE30%
#7Agorize26.7%
#8Unstop26.7%
#9MLH26.7%
#10Devfolio23.3%

Sep 3, 202630 sampled answers · window 2026-08-06 – 2026-09-03 · rules v7

#1Devpost76.7%
#2HackerEarth Assessments56.7%
#3TAIKAI46.7%
#4Brightidea46.7%
#5Eventornado33.3%
#6HYPE30%
#7Agorize26.7%
#8Unstop26.7%
#9MLH26.7%
#10Devfolio23.3%

Sep 2, 202630 sampled answers · window 2026-08-05 – 2026-09-02 · rules v7

#1Devpost76.7%
#2HackerEarth Assessments56.7%
#3TAIKAI46.7%
#4Brightidea46.7%
#5Eventornado33.3%
#6HYPE30%
#7Agorize26.7%
#8Unstop26.7%
#9MLH26.7%
#10Devfolio23.3%

Sep 1, 202630 sampled answers · window 2026-08-04 – 2026-09-01 · rules v7

#1Devpost76.7%
#2HackerEarth Assessments56.7%
#3TAIKAI46.7%
#4Brightidea46.7%
#5Eventornado33.3%
#6HYPE30%
#7Agorize26.7%
#8Unstop26.7%
#9MLH26.7%
#10Devfolio23.3%

Aug 31, 202630 sampled answers · window 2026-08-03 – 2026-08-31 · rules v7

#1Devpost76.7%
#2HackerEarth Assessments56.7%
#3TAIKAI46.7%
#4Brightidea46.7%
#5Eventornado33.3%
#6HYPE30%
#7Agorize26.7%
#8Unstop26.7%
#9MLH26.7%
#10Devfolio23.3%

Aug 30, 202630 sampled answers · window 2026-08-02 – 2026-08-30 · rules v7

#1Devpost76.7%
#2HackerEarth Assessments56.7%
#3TAIKAI46.7%
#4Brightidea46.7%
#5Eventornado33.3%
#6HYPE30%
#7Agorize26.7%
#8Unstop26.7%
#9MLH26.7%
#10Devfolio23.3%

Aug 29, 202636 sampled answers · window 2026-08-01 – 2026-08-29 · rules v4-7

#1Devpost80.6%
#2HackerEarth Assessments61.1%
#3TAIKAI47.2%
#4Brightidea41.7%
#5Eventornado36.1%
#6HYPE27.8%
#7MLH25%
#8Agorize22.2%
#9Devfolio22.2%
#10Hackathon.com22.2%

Aug 28, 202654 sampled answers · window 2026-07-31 – 2026-08-28 · rules v4-7

#1Devpost79.6%
#2HackerEarth Assessments55.6%
#3TAIKAI53.7%
#4Eventornado40.7%
#5Brightidea40.7%
#6Slack31.5%
#7HYPE27.8%
#8Discord27.8%
#9Unstop25.9%
#10Devfolio24.1%

Aug 27, 202654 sampled answers · window 2026-07-30 – 2026-08-27 · rules v4-7

#1Devpost79.6%
#2HackerEarth Assessments55.6%
#3TAIKAI53.7%
#4Eventornado40.7%
#5Brightidea40.7%
#6Slack31.5%
#7HYPE27.8%
#8Discord27.8%
#9Unstop25.9%
#10Devfolio24.1%

Aug 26, 202654 sampled answers · window 2026-07-29 – 2026-08-26 · rules v4-7

#1Devpost79.6%
#2HackerEarth Assessments55.6%
#3TAIKAI53.7%
#4Eventornado40.7%
#5Brightidea40.7%
#6Slack31.5%
#7HYPE27.8%
#8Discord27.8%
#9Unstop25.9%
#10Devfolio24.1%

Aug 25, 202654 sampled answers · window 2026-07-28 – 2026-08-25 · rules v4-7

#1Devpost79.6%
#2HackerEarth Assessments55.6%
#3TAIKAI53.7%
#4Eventornado40.7%
#5Brightidea40.7%
#6Slack31.5%
#7HYPE27.8%
#8Discord27.8%
#9Unstop25.9%
#10Devfolio24.1%

Aug 24, 202642 sampled answers · window 2026-07-27 – 2026-08-24 · rules v4-7

#1Devpost81%
#2HackerEarth Assessments54.8%
#3TAIKAI54.8%
#4Eventornado42.9%
#5Brightidea38.1%
#6Slack31%
#7Unstop26.2%
#8Discord23.8%
#9HYPE23.8%
#10Devfolio21.4%

Aug 23, 202636 sampled answers · window 2026-07-26 – 2026-08-23 · rules v4

#1Devpost77.8%
#2TAIKAI61.1%
#3Eventornado52.8%
#4HackerEarth Assessments47.2%
#5Slack36.1%
#6Brightidea36.1%
#7Discord27.8%
#8HYPE27.8%
#9Unstop25%
#10DoraHacks25%

Aug 22, 202636 sampled answers · window 2026-07-25 – 2026-08-22 · rules v4

#1Devpost77.8%
#2TAIKAI61.1%
#3Eventornado52.8%
#4HackerEarth Assessments47.2%
#5Slack36.1%
#6Brightidea36.1%
#7Discord27.8%
#8HYPE27.8%
#9Unstop25%
#10DoraHacks25%

Aug 21, 202642 sampled answers · window 2026-07-24 – 2026-08-21 · rules v4

#1Devpost81%
#2TAIKAI59.5%
#3HackerEarth Assessments50%
#4Eventornado47.6%
#5Slack35.7%
#6Brightidea33.3%
#7Discord28.6%
#8HYPE26.2%
#9Unstop23.8%
#10DoraHacks23.8%

Aug 20, 202642 sampled answers · window 2026-07-23 – 2026-08-20 · rules v4

#1Devpost81%
#2TAIKAI59.5%
#3HackerEarth Assessments50%
#4Eventornado47.6%
#5Slack35.7%
#6Brightidea33.3%
#7Discord28.6%
#8HYPE26.2%
#9Unstop23.8%
#10DoraHacks23.8%

Aug 19, 202654 sampled answers · window 2026-07-22 – 2026-08-19 · rules v4

#1Devpost79.6%
#2TAIKAI59.3%
#3Eventornado53.7%
#4HackerEarth Assessments46.3%
#5Brightidea35.2%
#6Slack33.3%
#7HackerEarth27.8%
#8HYPE27.8%
#9StackUp25.9%
#10Unstop25.9%

Aug 18, 202654 sampled answers · window 2026-07-21 – 2026-08-18 · rules v4

#1Devpost79.6%
#2TAIKAI59.3%
#3Eventornado53.7%
#4HackerEarth Assessments46.3%
#5Brightidea35.2%
#6Slack33.3%
#7HackerEarth27.8%
#8HYPE27.8%
#9StackUp25.9%
#10Unstop25.9%

Aug 17, 202654 sampled answers · window 2026-07-20 – 2026-08-17 · rules v4

#1Devpost79.6%
#2TAIKAI59.3%
#3Eventornado53.7%
#4HackerEarth Assessments46.3%
#5Brightidea35.2%
#6Slack33.3%
#7HackerEarth27.8%
#8HYPE27.8%
#9StackUp25.9%
#10Unstop25.9%

Aug 16, 202654 sampled answers · window 2026-07-19 – 2026-08-16 · rules v4

#1Devpost79.6%
#2TAIKAI59.3%
#3Eventornado53.7%
#4HackerEarth Assessments46.3%
#5Brightidea35.2%
#6Slack33.3%
#7HackerEarth27.8%
#8HYPE27.8%
#9StackUp25.9%
#10Unstop25.9%

Aug 15, 202654 sampled answers · window 2026-07-18 – 2026-08-15 · rules v4

#1Devpost79.6%
#2TAIKAI59.3%
#3Eventornado53.7%
#4HackerEarth Assessments46.3%
#5Brightidea35.2%
#6Slack33.3%
#7HackerEarth27.8%
#8HYPE27.8%
#9StackUp25.9%
#10Unstop25.9%

Aug 14, 202654 sampled answers · window 2026-07-17 – 2026-08-14 · rules v4

#1Devpost79.6%
#2TAIKAI59.3%
#3Eventornado53.7%
#4HackerEarth Assessments46.3%
#5Brightidea35.2%
#6Slack33.3%
#7HackerEarth27.8%
#8HYPE27.8%
#9StackUp25.9%
#10Unstop25.9%

Read any date directly

Every archived date is machine-readable at /api/index/hackathon-platforms/as-of/<YYYY-MM-DD>, which returns the ranking as it stood, with the extraction version and revision it was published under. Dates before the record begins return no_record rather than a recomputation — we do not reconstruct history on demand and present it as what we said. See what the engines actually said.

[ORBATOR]