OpenAI API Pricing

GPT-4o mini is OpenAI's most affordable mainstream model — a lightweight version of GPT-4o optimized for speed and cost. It's ideal for simple tasks that don't require the full capability of GPT-4o.

GPT-3.5 Turbo is the previous workhorse model from OpenAI. Cheap and fast, but generally outclassed by GPT-4o mini at similar or lower price points. Still common in legacy integrations.

o4-mini brings OpenAI's chain-of-thought reasoning to a smaller, faster, and cheaper form factor. It offers strong performance on STEM tasks at a fraction of o3's cost.

GPT-4o is OpenAI's flagship multimodal model — capable of processing text, images, and audio. It's the default choice for most production OpenAI workloads, balancing cost, speed, and capability.

OpenAI o3 is a frontier reasoning model that thinks step-by-step before answering. It significantly outperforms previous models on math, science, and complex coding tasks — but at a higher cost due to extended chain-of-thought processing.

GPT-4 Turbo is the predecessor to GPT-4o — still widely deployed, especially in enterprise stacks pinned to it. Largely superseded by GPT-4o on both price and multimodal capability.