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Gemini API vs OpenAI API
OpenAI API offers GPT models, not Google’s Gemini models or integrated Edge deployment.
Short answer: Pick Gemini API if you want Google AI models via API; pick OpenAI API if you want unified AI model and agent APIs. Gemini API has a free plan.
Which to pick
Pick Gemini API if you want…
- Google AI models via API
Pick OpenAI API if you want…
- Unified AI model and agent APIs
- OpenAI GPT models
Side by side
- What it is
- Gemini API:Gemini API provides Google’s Gemini models via a REST API for building AI-powered apps.
- OpenAI API:OpenAI API provides access to GPT-6 series models, embeddings, image, speech and agent capabilities via a unified API.
- Best for
- Gemini API:Google AI models via API
- OpenAI API:Unified AI model and agent APIs
- Who it’s for
- Gemini API:Developers building AI features, from prototypes to production workloads.
- OpenAI API:Developers building AI-powered applications and agents
- Pricing
- Gemini API:Freemium
- OpenAI API:Pay-as-you-go
- Free plan or trial
- Gemini API:Free plan (Free) · Free trial
- OpenAI API:—
- Plans
- Gemini API:Free Free
- OpenAI API:—
- Works with
- Gemini API:Android Studio, VS Code, JetBrains IDEs, Colab, Firebase, Google Cloud, Chrome DevTools
- OpenAI API:—
Gemini API features
- Model Access. Call Gemini, Imagen, Veo and other Google models with a simple API key.
- Code Assistance. Agents, analysis, generation and chat features integrate into IDEs for developer productivity.
- On-Device Edge. Run Gemini Nano on Android and web via Google AI Edge for low-latency, private inference.
- Responsible AI Tools. Guidance, Secure AI Framework and toolkits for safe model design and deployment.
- Multimodal Support. Supports text, image, video, audio and grounding with Google Search/Maps.
OpenAI API features
- Frontier models. Access GPT-6 series with up to 1.05M context and 128K output tokens.
- Pay-as-you-go pricing. Input and output tokens billed per million (e.g., $0.10-$10 per 1M tokens).
- Agent SDK & Responses API. Create workflows, add voice with GPT-Live-1, and integrate tools like web and file search.
- Enterprise security. Zero data retention, SOC 2, HIPAA BAA, encryption at rest and in transit.
- Built-in tools for agents. Web search, file search, remote MCP servers, and voice capabilities.
Gemini API vs OpenAI API FAQ
What is the difference between Gemini API and OpenAI API?+
OpenAI API offers GPT models, not Google’s Gemini models or integrated Edge deployment.
Should I use Gemini API or OpenAI API?+
Pick Gemini API if you want Google AI models via API. Pick OpenAI API if you want unified AI model and agent APIs or OpenAI GPT models.
Is Gemini API or OpenAI API free?+
Gemini API has a free plan and paid plans.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.