Is GPT-4o or O3 cheaper?
O3 is cheaper ($2 / 1M tokens input / $8 / 1M tokens output) vs GPT-4o ($2.50 / 1M tokens input / $10 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.
Model comparison
GPT-4o vs O3
Compare GPT-4o (OpenAI) and O3 (OpenAI) by price, context, capabilities, and latency.
Which should you pick?
- Price: O3 is cheaper ($2 / 1M tokens input / $8 / 1M tokens output) vs GPT-4o ($2.50 / 1M tokens input / $10 / 1M tokens output).
- Context: O3 has the larger context window (200k tokens).
Side by side
GPT-4o vs O3 — full comparison
Compare price, provider, context, capabilities, latency, and source basis.
| Model | Provider | Input | Output | Context | Capabilities | Best for | Latency | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| GPT-4oopenai/gpt-4o | OpenAI | $2.50 / 1M tokens | $10 / 1M tokens | 128k | StreamingTool callingJSON modeVision | image understanding, multimodal chat | 1065-2456ms | Catalog | Platform curated |
| O3openai/o3 | OpenAI | $2 / 1M tokens | $8 / 1M tokens | 200k | StreamingTool callingJSON modeVision | image understanding, multimodal chat | 1666-3533ms | Catalog | Platform curated |
FAQ
GPT-4o vs O3 FAQ
Which has a larger context window, GPT-4o or O3?
O3 is larger (200k tokens) vs 128k tokens.
GPT-4o vs O3 for Vision: which should I pick?
Both target Vision. Pick O3 to optimize cost, or O3 for the longer context window. Test both on real prompts before committing production traffic.