GPT-6.1 Sol vs DeepSeek V4 Pro
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-6.1 Sol comes from OpenAI and DeepSeek V4 Pro from DeepSeek. The practical difference for most people is context, price, and which input types each one accepts.
GPT-6.1 Sol holds more in a single conversation — 1.1M tokens against 1M — which matters for long documents and large codebases.
DeepSeek V4 Pro is the cheaper of the two on input tokens at $1.32 / 1M tokens.
| Specification | GPT-6.1 Sol | DeepSeek V4 Pro |
|---|---|---|
| Provider | OpenAI | DeepSeek |
| Model ID | gpt-6.1-sol | deepseek-v4-pro |
| Context window | 1.1M | 1M |
| Max output | 128K | 384K |
| Input price | $2.00 / 1M tokens | $1.32 / 1M tokens |
| Output price | $10.00 / 1M tokens | $3.96 / 1M tokens |
| Knowledge cutoff | 2026-04 | — |
| Input types | text, image | text |
| Output types | text | text |
| Plan | All paid plans | All paid plans |
Which should you use?
Pick GPT-6.1 Sol when…
- You need the larger context window — 1.1M against 1M.
- You need image input, which the other model does not accept.
Pick DeepSeek V4 Pro when…
- Cost matters: input runs at $1.32 / 1M tokens versus $2.00 / 1M tokens.
- You want longer single responses — up to 384K output tokens.
Related comparisons
Try both on Clade
You do not have to choose. One Clade subscription gives you GPT-6.1 Sol, DeepSeek V4 Pro, and every other model on the platform.