y-axis

Stack Overflow

New questions per month on Stack Overflow and across the Stack Exchange network, since 2015: tags for LLMs and for the earlier machine-learning wave, non-AI control tags, other Stack Exchange sites, answers, and derived shares.

cadence · monthly 55 series updated 21 Oct 2026 stackexchange.com ↗
release markers

All questions

1.1k −81.7% yr as of Sep 2026
050.0k100k150k200k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Control tags (non-AI)

These tags are not about AI. They are a control, and they fall too, so fashion in one ecosystem cannot explain the decline.

python

125 −81.4% yr as of Sep 2026
05.0k10.0k15.0k20.0k25.0k30.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

javascript

60 −78.8% yr as of Sep 2026
05.0k10.0k15.0k20.0k25.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

reactjs

12 −91.9% yr as of Sep 2026
02.0k4.0k6.0k8.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

java

38 −87.1% yr as of Sep 2026
05.0k10.0k15.0k20.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

c#

52 −81.6% yr as of Sep 2026
02.0k4.0k6.0k8.0k10.0k12.0k14.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

sql

19 −73.2% yr as of Sep 2026
01.0k2.0k3.0k4.0k5.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

html

39 −70.2% yr as of Sep 2026
02.0k4.0k6.0k8.0k10.0k12.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

android

49 −85.1% yr as of Sep 2026
02.0k4.0k6.0k8.0k10.0k12.0k14.0k16.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

excel

10 −89.4% yr as of Sep 2026
05001.0k1.5k2.0k2.5k3.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

git

20 −64.9% yr as of Sep 2026
02004006008001.0k1.2k1.4k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

docker

8 −87.7% yr as of Sep 2026
05001.0k1.5k2.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Answers

All answers

2.4k −74.8% yr as of Sep 2026
050.0k100k150k200k250k300k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Other Stack Exchange sites

Mathematics

696 −62.4% yr as of Sep 2026
02.0k4.0k6.0k8.0k10.0k12.0k14.0k16.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Ask Ubuntu

234 −56.3% yr as of Sep 2026
01.0k2.0k3.0k4.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Super User

146 −66.0% yr as of Sep 2026
01.0k2.0k3.0k4.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Server Fault

51 −74.5% yr as of Sep 2026
05001.0k1.5k2.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Unix & Linux

82 −70.7% yr as of Sep 2026
05001.0k1.5k2.0k2.5k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Physics

243 −38.9% yr as of Sep 2026
05001.0k1.5k2.0k2.5k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

TeX / LaTeX

184 −63.3% yr as of Sep 2026
05001.0k1.5k2.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Cross Validated (stats)

114 −51.1% yr as of Sep 2026
05001.0k1.5k2.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Electrical Engineering

168 −62.4% yr as of Sep 2026
05001.0k1.5k2.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

MathOverflow

272 −41.0% yr as of Sep 2026
02004006008001.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Geographic Information Systems

49 −69.6% yr as of Sep 2026
02004006008001.0k1.2k1.4k1.6k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Database Administrators

47 −46.0% yr as of Sep 2026
02004006008001.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Ask Different (Apple)

43 −61.6% yr as of Sep 2026
02004006008001.0k1.2k1.4k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

English Language Learners

69 −41.5% yr as of Sep 2026
02004006008001.0k1.2k1.4k1.6k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

English Language & Usage

44 −36.2% yr as of Sep 2026
02004006008001.0k1.2k1.4k1.6k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Code Review

31 −48.3% yr as of Sep 2026
0200400600800201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Software Engineering

14 −48.1% yr as of Sep 2026
0100200300400500600201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Artificial Intelligence SE

21 −22.2% yr as of Sep 2026
050100150200250300201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv
Stack Exchange started this AI site in August 2016. The zeros before that month are real.

Data Science SE

9 −78.6% yr as of Sep 2026
0100200300400500600201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv
This is the other AI site on the network. Its questions fall too.

AI tags — LLM wave

Stack Overflow creates a tag some months after the tool it names. In a tag's first year, part of the rise comes from people who learn the tag.

artificial-intelligence

3 −75.0% yr as of Sep 2026
020406080100201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

openai-api

1 −91.7% yr as of Sep 2026
020406080100120140160201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv
Stack Overflow merged the chatgpt and openai tags into this tag. The merge also moved the old questions, so the 2020–2022 months are complete.

langchain

0 −100.0% yr as of Sep 2026
020406080100120140201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv
LangChain shipped in October 2022, but Stack Overflow created the tag in early 2023. The 2023 rise is partly that late start.

large-language-model

4 −69.2% yr as of Sep 2026
020406080100201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

github-copilot

2 −71.4% yr as of Sep 2026
02468101214201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

huggingface-transformers

2 −83.3% yr as of Sep 2026
020406080100201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

ollama

0 −100.0% yr as of Sep 2026
0510152025201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

rag

2 −75.0% yr as of Sep 2026
02468101214201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv
This line counts only the rag tag, because retrieval-augmented-generation is a separate tag. The line stays at zero until April 2024.

llama

1 −50.0% yr as of Sep 2026
05101520253035201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

google-gemini

3 −57.1% yr as of Sep 2026
05101520253035201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

AI tags — ML wave

machine-learning

5 −58.3% yr as of Sep 2026
0200400600800201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

deep-learning

2 −75.0% yr as of Sep 2026
0100200300400500201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

nlp

1 −80.0% yr as of Sep 2026
050100150200250300201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

pytorch

0 −100.0% yr as of Sep 2026
0100200300400500201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

tensorflow

2 −85.7% yr as of Sep 2026
02004006008001.0k1.2k1.4k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

AI tags — vendor (noise-level)

These tags peak at 1–9 questions a month. The flat line is the result; the small moves are random.

mistral-ai

0 as of Sep 2026
00.511.52201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

anthropic

0 as of Sep 2026
00.20.40.60.81201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

claude

1 0.0% yr as of Sep 2026
02468201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Network-wide

These lines add up 19 sites, about 85% of the network outside Stack Overflow. The API gives no total, so the true total is higher.

Network excl. Stack Overflow derived

2.5k −58.3% yr as of Sep 2026
010.0k20.0k30.0k40.0k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Whole network (incl. Stack Overflow) derived

3.6k −70.0% yr as of Sep 2026
050.0k100k150k200k250k201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv

Derived

AI-tool tags (sum) derived

16 −79.7% yr as of Sep 2026
0100200300400500201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv
This line adds up the 12 LLM tags. One question can carry several of them, so the true number is lower.

AI-tool questions, share of all derived

1.4% +10.6% yr as of Sep 2026
00.511.522.53201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv
This line divides that sum by all Stack Overflow questions in the same month. Total questions fall fast, so the share can rise while AI questions fall.

Answers per question derived

2.2 +37.4% yr as of Sep 2026
00.511.522.53201520162017201820192020202120222023202420252026Copilot GAClaude 3Gemini 2.5 ProGPT-6 Astra
png csv
This line divides all answers by all questions in the same month.

Figures

Stack Overflow: latest figure, change, range and coverage of each series
SeriesLatestChangeMinMaxCoverage
All questions1.1k−81.7% yr1.1k202kJan 2015 — Sep 2026
python125−81.4% yr12529.3kJan 2015 — Sep 2026
javascript60−78.8% yr6023.9kJan 2015 — Sep 2026
reactjs12−91.9% yr128.3kJan 2015 — Sep 2026
All answers2.4k−74.8% yr2.4k284kJan 2015 — Sep 2026
Mathematics696−62.4% yr69616.1kJan 2015 — Sep 2026
Ask Ubuntu234−56.3% yr2344.0kJan 2015 — Sep 2026
Super User146−66.0% yr1454.6kJan 2015 — Sep 2026
Server Fault51−74.5% yr502.3kJan 2015 — Sep 2026
Unix & Linux82−70.7% yr822.4kJan 2015 — Sep 2026
Physics243−38.9% yr2072.4kJan 2015 — Sep 2026
TeX / LaTeX184−63.3% yr1842.3kJan 2015 — Sep 2026
Cross Validated (stats)114−51.1% yr942.3kJan 2015 — Sep 2026
Electrical Engineering168−62.4% yr1672.1kJan 2015 — Sep 2026
MathOverflow272−41.0% yr2721.1kJan 2015 — Sep 2026
Geographic Information Systems49−69.6% yr401.6kJan 2015 — Sep 2026
Database Administrators47−46.0% yr471.1kJan 2015 — Sep 2026
Ask Different (Apple)43−61.6% yr431.4kJan 2015 — Sep 2026
English Language Learners69−41.5% yr571.6kJan 2015 — Sep 2026
English Language & Usage44−36.2% yr401.7kJan 2015 — Sep 2026
Code Review31−48.3% yr25926Jan 2015 — Sep 2026
Software Engineering14−48.1% yr7602Jan 2015 — Sep 2026
Artificial Intelligence SE21−22.2% yr0306Jan 2015 — Sep 2026
Data Science SE9−78.6% yr6660Jan 2015 — Sep 2026
artificial-intelligence3−75.0% yr199Jan 2015 — Sep 2026
machine-learning5−58.3% yr1843Jan 2015 — Sep 2026
openai-api1−91.7% yr0163Jan 2020 — Sep 2026
langchain0−100.0% yr0139Jan 2022 — Sep 2026
large-language-model4−69.2% yr0109Jan 2022 — Sep 2026
github-copilot2−71.4% yr015Jan 2021 — Sep 2026
deep-learning2−75.0% yr2520Jan 2015 — Sep 2026
nlp1−80.0% yr0310Jan 2015 — Sep 2026
huggingface-transformers2−83.3% yr0110Jun 2019 — Sep 2026
pytorch0−100.0% yr0494Jun 2016 — Sep 2026
tensorflow2−85.7% yr01.5kJan 2015 — Sep 2026
ollama0−100.0% yr026Jan 2023 — Sep 2026
rag2−75.0% yr015Jun 2022 — Sep 2026
llama1−50.0% yr037Jun 2022 — Sep 2026
google-gemini3−57.1% yr035Jan 2023 — Sep 2026
mistral-ai0—02Jan 2023 — Sep 2026
anthropic0—01Nov 2022 — Sep 2026
claude10.0% yr09Nov 2022 — Sep 2026
java38−87.1% yr3819.7kJan 2015 — Sep 2026
c#52−81.6% yr5214.0kJan 2015 — Sep 2026
sql19−73.2% yr195.3kJan 2015 — Sep 2026
html39−70.2% yr3911.9kJan 2015 — Sep 2026
android49−85.1% yr4915.2kJan 2015 — Sep 2026
excel10−89.4% yr103.1kJan 2015 — Sep 2026
git20−64.9% yr141.4kJan 2015 — Sep 2026
docker8−87.7% yr42.2kJan 2015 — Sep 2026
Network excl. Stack Overflow2.5k−58.3% yr2.5k43.2kJan 2015 — Sep 2026
Whole network (incl. Stack Overflow)3.6k−70.0% yr3.6k244kJan 2015 — Sep 2026
AI-tool tags (sum)16−79.7% yr0483Jan 2015 — Sep 2026
AI-tool questions, share of all1.4%+10.6% yr0%1.8%Jan 2015 — Sep 2026
Answers per question2.2+37.4% yr1.22.9Jan 2015 — Sep 2026
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