GPT-5.4 nano vs Command A Reasoning
Side-by-side specs, pricing and capabilities. Both models run on Clade under one subscription, so you can switch between them in the same conversation.
GPT-5.4 nano comes from OpenAI and Command A Reasoning from Cohere. The practical difference for most people is context, price, and which input types each one accepts.
Command A Reasoning holds more in a single conversation — 256K tokens against — — which matters for long documents and large codebases.
GPT-5.4 nano is the cheaper of the two on input tokens at $0.20 / 1M tokens.
| Specification | GPT-5.4 nano | Command A Reasoning |
|---|---|---|
| Provider | OpenAI | Cohere |
| Model ID | gpt-5.4-mini-2026-03-17 | command-a-reasoning-08-2025 |
| Context window | — | 256K |
| Max output | — | 32K |
| Input price | $0.20 / 1M tokens | $5.00 / 1M tokens |
| Output price | $1.25 / 1M tokens | $20.00 / 1M tokens |
| Knowledge cutoff | — | — |
| Input types | text, image, file | text |
| Output types | text, image | text |
| Plan | Free | Premium |
Which should you use?
Pick GPT-5.4 nano when…
- Cost matters: input runs at $0.20 / 1M tokens versus $5.00 / 1M tokens.
- You need image and file input, which the other model does not accept.
- You are on the free plan — this model is included without an upgrade.
Pick Command A Reasoning when…
- You need the larger context window — 256K against —.
- You want longer single responses — up to 32K output tokens.
Related comparisons
Try both on Clade
You do not have to choose. One Clade subscription gives you GPT-5.4 nano, Command A Reasoning, and every other model on the platform.