Side-by-side technical and economic comparison between OpenAI's GPT-5.6 Sol and Cohere's Command R+ (08-2024).
• Command R+ (08-2024): Classified as a Legacy Reference model (Tracked Legacy (Predecessor to Command A)).
| Metric | GPT-5.6 Sol | Command R+ (08-2024) | Advantage |
|---|---|---|---|
| Provider Organization | OpenAI | Cohere | — |
| Standard Input / 1M | $4.00 | $2.50 | Command R+ (08-2024) (38% lower) |
| Cached Input / 1M | $0.40 | $0.25 | Command R+ (08-2024) lower |
| Output / 1M | $20.00 | $10.00 | Command R+ (08-2024) lower |
| Context Window | 1.05M | 128k | GPT-5.6 Sol (1.05M) |
| Max Generation Tokens | 16.4k | 4.1k | GPT-5.6 Sol |
| Tokenizer Family | OpenAI o200k_base (200k vocabulary) | Cohere BPE (~256k vocabulary) | — |
Opt for GPT-5.6 Sol when your engineering requirements prioritize OpenAI's ecosystem, specific tokenizer efficiencies (Exact BPE (o200k_base)), or when your expected prompt-to-completion ratios favor its $4/M input rate.
Opt for Command R+ (08-2024) when looking for Cohere's tooling integration, specific context window depth (128k tokens), or when output generation volume favors its $10/M rate.