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Close call · editorial

OpenAI API vs Gemini API

Compared for LLM APIs.

Higher score

OpenAI API

90 · S-tier

Products that want the broadest model, tool, and SDK support.

Paid check site

  • Capability 40%96
  • Ease 25%86
  • Value 20%80
  • Momentum 15%95

Official site

The other pick

Gemini API

88 · A-tier

Apps that want Gemini, multimodal inputs, and a real free tier to prototype.

Freemium check site

  • Capability 40%90
  • Ease 25%84
  • Value 20%88
  • Momentum 15%90

Official site

Sub-scores

OpenAI API versus Gemini API sub-scores
PartOpenAI APIGemini API
Overall9088
Capability9690
Ease8684
Value8088
Momentum9590

Full lists: Best LLM APIs

Questions

Which is better, OpenAI API or Gemini API?

This is a close call. OpenAI API is only 2 points ahead on the editorial score. The widest sub-score gap is value, where Gemini API leads by 8. Choose OpenAI API when this is the job: Products that want the broadest model, tool, and SDK support. Choose Gemini API when this is the job: Apps that want Gemini, multimodal inputs, and a real free tier to prototype.

Which is cheaper, OpenAI API or Gemini API?

We do not print a dollar winner. OpenAI API is paid (check site). Gemini API is freemium (check site). OpenAI API is ahead on the editorial score, not on a verified invoice. Open both pricing pages.

When should you ignore the higher score?

Ignore OpenAI API's lead when apps that want Gemini, multimodal inputs, and a real free tier to prototype. The score is a default, not a mandate.