Side-by-side technical and economic comparison between DeepSeek's DeepSeek-V4.1-Reasoner and Cohere's Command A.
| Metric | DeepSeek-V4.1-Reasoner | Command A | Advantage |
|---|---|---|---|
| Provider Organization | DeepSeek | Cohere | — |
| Standard Input / 1M | $0.50 | $2.00 | DeepSeek-V4.1-Reasoner (75% lower) |
| Cached Input / 1M | $0.01 | $0.20 | DeepSeek-V4.1-Reasoner lower |
| Output / 1M | $2.50 | $8.00 | DeepSeek-V4.1-Reasoner lower |
| Context Window | 256k | 256k | DeepSeek-V4.1-Reasoner (256k) |
| Max Generation Tokens | 384k | 64k | DeepSeek-V4.1-Reasoner |
| Tokenizer Family | DeepSeek Byte-Level BPE (102k vocabulary) | Cohere Byte-Pair Encoding (256k vocabulary) | — |
Opt for DeepSeek-V4.1-Reasoner when your engineering requirements prioritize DeepSeek's ecosystem, specific tokenizer efficiencies (Calibrated DeepSeek Tokenizer (±3%)), or when your expected prompt-to-completion ratios favor its $0.5/M input rate.
Opt for Command A when looking for Cohere's tooling integration, specific context window depth (256k tokens), or when output generation volume favors its $8/M rate.