OpenAI vs Google AI: LLM APIs Comparison (2026)

An independent side-by-side comparison of OpenAI and Google AI for llm apis buyers — pricing, features, integrations, and how often each is cited by major AI engines.

AI Citation Scorecard

How often each is cited by major AI engines when buyers ask llm apis questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.

OpenAI leads overall — 83% cited vs Google AI 0% across 12 probes.
ChatGPT
OpenAILeads
1 / 1 probes
100%
Excellent
Google AI
0 / 1 probes
0%
Invisible
Perplexity
OpenAILeads
1 / 2 probes
50%
Excellent
Google AI
0 / 2 probes
0%
Invisible
Gemini
OpenAILeads
1 / 1 probes
100%
Excellent
Google AI
0 / 1 probes
0%
Invisible
Claude
OpenAILeads
1 / 1 probes
100%
Excellent
Google AI
0 / 1 probes
0%
Invisible
Copilot
OpenAILeads
1 / 1 probes
100%
Excellent
Google AI
0 / 1 probes
0%
Invisible
Scale:NoneLowFairStrongExcellent

Probes run hourly; each (engine × query) combo retests every ~3 days.

Pricing

OpenAI
Starting price
$0/month
Free tier
Yes
openai.com ↗
Google AI
Starting price
—
Free tier
—
ai.google ↗

Key Features

OpenAI
  • ✓Limited access to GPT-5.5 Instant
  • ✓Limited messages and uploads
  • ✓Limited faster image generation
  • ✓Advanced reasoning with GPT-5.5 Thinking
  • ✓Unlimited GPT-5.3 and file uploads
  • ✓5x or 20x more usage
  • ✓Unlimited memory
  • ✓Unlimited subject to abuse guardrails
Google AI
  • ✓Personal AI assistant Gemini
  • ✓Create and edit videos
  • ✓Create and edit images
  • ✓Interactive visuals in real-time

When to choose OpenAI

Choose OpenAI if your team prioritizes its strengths over Google AI's. Full guidance populates as OpenAI's feature data is indexed.

When to choose Google AI

Choose Google AI if your team prioritizes its strengths over OpenAI's. Full guidance populates as Google AI's feature data is indexed.

AI visibility profiles

Is one of these your brand?

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OpenAI

openai.com

Google AI

ai.google

Free check

Check any brand's AI visibility — free

We ask the buyer questions in this market across ChatGPT, Claude, Gemini, Perplexity and Copilot, and show you who gets named.

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