OpenAI: GPT-4o (extended)
GPT-4o (extended) shares the same release date as the standard GPT-4o but carries no benchmark data of its own and comes at a significantly higher price ($6/$18 per million tokens). Without independent performance evidence, it cannot be scored above the conservative range regardless of the parent model's reputation.
Assessment date: March 14, 2026
Our methodology takes into account a range of factors including pricing, functionality, capabilities, benchmark performance, and real-world applicability. Rankings are reviewed and updated regularly as new models are released. Issues with our rankings? Contact us
GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of GPT-4 Turbo while being twice as fast and 50% more cost-effective. GPT-4o also offers improved performance in processing non-English languages and enhanced visual capabilities. For benchmarking against other models, it was briefly called "im-also-a-good-gpt2-chatbot" #multimodal
Capabilities
Architecture
| Modality | Text + Image + File → Text |
| Tokenizer | GPT |
Model Information
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $6.00 | $0.006000 |
| Output | $18.00 | $0.018000 |
