c4ai-command-a-03-2025 vs GPT-5 Nano
API pricing, benchmark indices and specs — updated 19 October 2026.
CohereLabs · A · Open weights
Params
111.1 B
Context
—
30d
1 K
cc-by-nc-4.0 · non-commercial
openai · B · API-only
Input / 1M
$0.05
Output / 1M
$0.40
AA index
13
proprietary · 400K context
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | c4ai-command-a-03-2025 | GPT-5 Nano |
|---|---|---|
| Deployment | Open weights · also via API | API-only (closed weights) |
| Parameters | 111.1 B | n/a — API-only |
| Architecture | Cohere2ForCausalLM | n/a — API-only |
| Context length | 256,000 | 400,000 |
| Licence | cc-by-nc-4.0 | Proprietary |
| Commercial use | Not allowed | Per API terms |
| Languages | 23 | n/a — API-only |
| Downloads 30d | 1,494 | n/a — API-only |
| Downloads all time | 126 K | n/a — API-only |
| Quantizations on the Hub | SAFETENSORS | n/a — API-only |
| Gated | Yes — accept licence | n/a — API-only |
| First seen on the Hub | 2025-03-11 | n/a — API-only |
| API input price / 1M tokens | $2.50 | $0.05 |
| API output price / 1M tokens | $10.00 | $0.40 |
| Est. cost per 1M input + 1M output tokens | $12.50 | $0.45 |
| Cached input / 1M tokens | — | $0.005 |
| AA Intelligence Index | 13.1 | 13 |
| AA Coding Index | 27.8 | — |
| AA Agentic Index | 1 | — |
| Max output tokens | 8,192 | 128,000 |
| API providers | 1 | 2 |
| Tool calling | No | Yes |
| Reasoning mode | No | Yes |
API cost
Estimated cost of 1M input + 1M output tokens via OpenRouter
c4ai-command-a-03-2025
$12.50
GPT-5 Nano
$0.45
GPT-5 Nano is 27.8× cheaper at list price.
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
c4ai-command-a-03-2025 · fp16
261.5 GB / 24 GB