OpenAI Responses API vs Gemini 3.1 Flash Live
A side-by-side comparison to help you choose the right tool.
87
OpenAI Responses API scores higher overall (87/100)
But the best choice depends on your specific needs. Compare below.
| Feature | OpenAI Responses API | Gemini 3.1 Flash Live |
|---|---|---|
| Our score | 87 | 79 |
| Pricing | Usage-based API pricing; costs depend on the models and tools you use. | Access depends on the product or API surface exposing the model; consumer usage may be bundled into Google products. |
| Free plan | No | No |
| Best for | Product teams building assistants or agents on OpenAI, Developers migrating from older endpoint patterns, Apps that need streaming and tool invocation in one API | Developers and product watchers tracking Google's live assistant stack, Users who care about conversational voice and camera experiences, Teams comparing live multimodal options across vendors |
| Platforms | api | web, android, ios, api |
| API | Yes | Yes |
| Languages | en | en |
| Pros |
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| Cons |
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| Visit site | Visit site |
- Pricing
- Usage-based API pricing; costs depend on the models and tools you use.
- Free plan
- No
- Best for
- Product teams building assistants or agents on OpenAI, Developers migrating from older endpoint patterns, Apps that need streaming and tool invocation in one API
- Platforms
- api
- API
- Yes
- Languages
- en
- Pricing
- Access depends on the product or API surface exposing the model; consumer usage may be bundled into Google products.
- Free plan
- No
- Best for
- Developers and product watchers tracking Google's live assistant stack, Users who care about conversational voice and camera experiences, Teams comparing live multimodal options across vendors
- Platforms
- web, android, ios, api
- API
- Yes
- Languages
- en
87Choose OpenAI Responses API if:
- You are Product teams building assistants or agents on OpenAI
- You are Developers migrating from older endpoint patterns
- You are Apps that need streaming and tool invocation in one API
79Choose Gemini 3.1 Flash Live if:
- You are Developers and product watchers tracking Google's live assistant stack
- You are Users who care about conversational voice and camera experiences
- You are Teams comparing live multimodal options across vendors
FAQ
- What is the difference between OpenAI Responses API and Gemini 3.1 Flash Live?
- OpenAI Responses API is openai's newer response-oriented api surface for building assistants and agents with streaming, tools, and model control. Gemini 3.1 Flash Live is google's low-latency live multimodal model experience for more natural voice and camera interactions in consumer products.
- Which is cheaper, OpenAI Responses API or Gemini 3.1 Flash Live?
- OpenAI Responses API: Usage-based API pricing; costs depend on the models and tools you use.. Gemini 3.1 Flash Live: Access depends on the product or API surface exposing the model; consumer usage may be bundled into Google products..
- Who is OpenAI Responses API best for?
- OpenAI Responses API is best for Product teams building assistants or agents on OpenAI, Developers migrating from older endpoint patterns, Apps that need streaming and tool invocation in one API.
- Who is Gemini 3.1 Flash Live best for?
- Gemini 3.1 Flash Live is best for Developers and product watchers tracking Google's live assistant stack, Users who care about conversational voice and camera experiences, Teams comparing live multimodal options across vendors.