OpenAI

Evaluate GPT-4, GPT-4o, o1, and other OpenAI models side by side.

Available Models

GPT-4o

OpenAI's flagship multimodal model. Fast, capable, and cost-effective for most use cases.

Multimodal 128K Context

GPT-4o-mini

Smaller, faster, and cheaper. Often outperforms GPT-4o on specific tasks.

Cost-Effective 128K Context

o1

Reasoning model that thinks before responding. Best for complex problem-solving.

Reasoning 200K Context

o1-mini

Faster reasoning model optimized for STEM tasks and coding.

Reasoning Cost-Effective

Best For

General-purpose tasks — GPT-4o handles most prompts well out of the box
Code generation — Strong performance across languages and frameworks
Complex reasoning — o1 models excel at multi-step problems
Function calling — Reliable structured output and tool use

Using OpenAI with Evvl

To use OpenAI models in Evvl, you'll need an API key from platform.openai.com.

Web App: OpenAI calls are proxied through our servers due to CORS restrictions. Your API key is never stored—it's only used for the request and immediately discarded.

Desktop App: All calls go directly to OpenAI's API with no intermediary.

Start comparing OpenAI models

See how GPT-4o stacks up against GPT-4o-mini, o1, and other providers.

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