Migrate from Gemini API to OpenAI API
90+ public pull requests on GitHub since Oct 2024, in 87 repos, say they move a project from Gemini API to OpenAI API. 178+ go the other way. Real code changes by developers in general, not only makers — read from the titles, so a PR is counted when its title says "Gemini API to OpenAI API".
When they moved
Pull requests a month. Most are recent: 90 in the last 13 months against 0 before. The busiest month was May 2026 (21). GitHub returned only the newest 500 matches, so earlier months are undercounted.
What they move
The part of the app a pull request's title names — "migrate auth from Gemini API to OpenAI API". Many titles name none, so the shares don't add up to 100%.
- API and functions32% 29 of 90
- Models and prompts19% 17 of 90
- Storage8% 7 of 90
The newest 20 pull requests
- gemini fallback to openai fixesmaximhq/bifrost · 2026-10-02
- Switch LLM backend from Gemini to OpenAI gpt-4o-miniPiSquareLabs/PathShala · 2026-09-30
- perf(gemini): Migrate Gemini to OpenAI formattisfeng/Easydict · 2026-09-29
- fixes foreign-function-call-id issue for fallback from gemini to openaimaximhq/bifrost · 2026-09-29
- Switch the model calls from Gemini to OpenAI gpt-5.4-miniMishaMatcharashvili/trip-io · 2026-09-25
- refactor: migrate AI insights service from Gemini API to OpenAI APITkYaLa34/AI-Investment-Research-Platform- · 2026-09-23
- Switch AI provider from Gemini to OpenAI, add dialogue lessons, fix e…aaryashah1010/Fluentify · 2026-09-22
- migrated from gemini to openai llmmohitgarg196/CodeVitals-AI · 2026-09-21
- Fix Gemini adapter to support OpenAI SDK client formatarvindg4u/APIKeyRotator · 2026-09-20
- Fix Gemini chat model + image fallback to OpenAIfabelanorma3010/How--to-wite--a-fiction-book · 2026-09-05
- feat: migrate backend LLM from Gemini to OpenAI (OCR + chat)code-1705/ResolveAI · 2026-08-30
- Migrate BurilLab AI APIs from Gemini to OpenAIhaengjoo123/buril-lab · 2026-08-28
- fix(ts): a bare claude- or gemini- model no longer routes to OpenAIMervinPraison/PraisonAI · 2026-08-27
- Update LLM Advisor model documentation from Gemini to OpenAI gpt-5.4-nanodmboynton56/personal-portfolio · 2026-08-26
- Migrate Gemini providers to OpenAI, revamp dashboard UIsahasprajapati/daily-brief-editorial-ai · 2026-08-26
- fix(translator): preserve functionCall id in Gemini to OpenAI request translationdiegosouzapw/OmniRoute · 2026-08-24
- Switch link description generation from Gemini to OpenAIhectorcflores/my-reading-list · 2026-08-20
- Migrate AI provider from Gemini to OpenAI and update docstharakanst/cultural_food_guide · 2026-08-17
- Swap the production image provider from Gemini to OpenAIKyleMit/Splotch · 2026-08-14
- Migrate Day 11 runtime from Gemini to OpenAIQuocKhanhLuong/K3-Day-11-Guardrails-HITL-Responsible-AI · 2026-08-07
Gemini API and OpenAI API, side by side
Among makers' products we track for LLM API: Gemini API 99, OpenAI API 728.
At input tokens 50 million tokens, output tokens 10 million tokens, Gemini API costs $28/mo (Gemini 3.1 Flash-Lite) and OpenAI API $10/mo (GPT-6 Luna), at list prices.
Where else Gemini API projects go
Groq152 PRs
Claude108+ PRs
DeepSeek24 PRs
Mistral AI6 PRs
Where else OpenAI API's newcomers come from
- Claude88 PRs
- Groq25 PRs
- DeepSeek16 PRs
- Mistral AI4 PRs
Questions
How many projects have moved from Gemini API to OpenAI API?
90+ public pull requests on GitHub since Oct 2024, in 87 repos, have a title saying they move from Gemini API to OpenAI API.
Do projects move back from OpenAI API to Gemini API?
Yes: 178+ pull requests over the same time go from OpenAI API to Gemini API, against 90+ from Gemini API to OpenAI API.
What do people move first from Gemini API to OpenAI API?
Of the pull request titles, 32% name API and functions, 19% name models and prompts.
Is OpenAI API cheaper than Gemini API?
At input tokens 50 million tokens, output tokens 10 million tokens: Gemini API $28/mo (Gemini 3.1 Flash-Lite), OpenAI API $10/mo (GPT-6 Luna), at list prices.
GitHub search, Oct 2026 (as of 2026-10-02).