Very long inputs
Choose Command A
Command A reads up to 256k tokens per request, against 128k for ChatGPT-4o.
ChatGPT-4o vs Command A: price, context and capabilities
Choose ChatGPT-4o for images as input. Choose Command A for very long inputs and the latest release.
In short
- A price comparison is not possible: one of them has no comparable published price.
- Command A reads more per request: 256k tokens against 128k.
- Command A is the newer model (March 2025, against August 2024).
- Only ChatGPT-4o offers vision, batch api.
Which should you choose?
Each answer below comes straight from the published prices, specifications and independent benchmark results.
Images as input
Choose ChatGPT-4o
ChatGPT-4o accepts images as input; Command A does not.
Latest release
Choose Command A
Command A is the newer release (March 2025, against August 2024 for ChatGPT-4o).
Specifications side by side
| ChatGPT-4o | Command A | |
|---|---|---|
| Provider | OpenAI | Cohere |
| Category | Language models | Language models |
| Status | Deprecated | Generally available |
| Headline price | No data | No data |
| Input | No data | No data |
| Output | No data | No data |
| Cached input | No data | No data |
| Context window | 128k | 256k |
| Max output | 16k | No data |
| Released | August 2024 | March 2025 |
| Knowledge cutoff | October 2023 | No data |
| Licence | Proprietary | Proprietary |
| Capabilities | Vision, Tool calling, Structured output, Batch API | Tool calling, Structured output |
| API model id | chatgpt-4o-latest | command-a-03-2025 |
Benchmarks side by side
Leader in bold.
| Benchmark | ChatGPT-4o | Command A |
|---|---|---|
| Terminal-Bench Hard | No data | 0.8% |
| GPQA Diamond | No data | 52.7% |
| Humanity's Last Exam | No data | 4% |
| IFBench (instruction following) | No data | 36.5% |
| τ²-Bench (agentic tool use) | No data | 15.2% |
| Long-context reasoning (AA-LCR) | No data | 21.3% |
Independent evaluations by Artificial Analysis, run the same way for every model, at the reasoning setting shown. Percentages unless marked as an index.
Frequently asked questions
Should I choose ChatGPT-4o or Command A?
Choose ChatGPT-4o for images as input. Choose Command A for very long inputs and the latest release.
Which is cheaper, ChatGPT-4o or Command A?
A price comparison is not possible: one of them has no comparable published price.
Which has the larger context window, ChatGPT-4o or Command A?
Command A reads more per request: 256k tokens against 128k.
What is the difference between ChatGPT-4o and Command A?
ChatGPT-4o is made by OpenAI and Command A by Cohere. A price comparison is not possible: one of them has no comparable published price. Command A reads more per request: 256k tokens against 128k. Command A is the newer model (March 2025, against August 2024). Only ChatGPT-4o offers vision, batch api.
Which is newer, ChatGPT-4o or Command A?
Command A was released on March 2025 and ChatGPT-4o on August 2024.