OpenAI Codex vs Gemini 3.1 Flash Live
A side-by-side comparison to help you choose the right tool.
86
OpenAI Codex scores higher overall (86/100)
But the best choice depends on your specific needs. Compare below.
| Feature | OpenAI Codex | Gemini 3.1 Flash Live |
|---|---|---|
| Our score | 86 | 79 |
| Pricing | Access depends on OpenAI product plan or API usage; advanced agent access is concentrated in higher tiers and previews. | Access depends on the product or API surface exposing the model; consumer usage may be bundled into Google products. |
| Free plan | Yes | No |
| Best for | Developers who want AI to work more directly on real code tasks, Teams exploring terminal-first coding agents, Engineers already invested in OpenAI's ecosystem | 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, mac, windows, linux, 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
- Access depends on OpenAI product plan or API usage; advanced agent access is concentrated in higher tiers and previews.
- Free plan
- Yes
- Best for
- Developers who want AI to work more directly on real code tasks, Teams exploring terminal-first coding agents, Engineers already invested in OpenAI's ecosystem
- Platforms
- web, mac, windows, linux, 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
86Choose OpenAI Codex if:
- You are Developers who want AI to work more directly on real code tasks
- You are Teams exploring terminal-first coding agents
- You are Engineers already invested in OpenAI's ecosystem
- You want to start free
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 Codex and Gemini 3.1 Flash Live?
- OpenAI Codex is openai's coding agent experience for writing, editing, understanding, and operating on codebases with a more agentic workflow. 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 Codex or Gemini 3.1 Flash Live?
- OpenAI Codex: Access depends on OpenAI product plan or API usage; advanced agent access is concentrated in higher tiers and previews.. Gemini 3.1 Flash Live: Access depends on the product or API surface exposing the model; consumer usage may be bundled into Google products.. OpenAI Codex has a free plan.
- Who is OpenAI Codex best for?
- OpenAI Codex is best for Developers who want AI to work more directly on real code tasks, Teams exploring terminal-first coding agents, Engineers already invested in OpenAI's ecosystem.
- 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.