DeepSeek V4.1 Flash (1017) vs GPT-6.1 Sol: price, context window and capabilities
DeepSeek V4.1 Flash (1017, deepseek/deepseek-v4.1-flash-1017) from DeepSeek and GPT-6.1 Sol (openai/gpt-6.1-sol) from OpenAI are both multimodal language models on the OceanToken API. DeepSeek V4.1 Flash costs less per token than GPT-6.1 Sol: $0.21 against $1.80 per 1M input tokens (88% less) and $0.84 against $9.00 per 1M output tokens (91% less). GPT-6.1 Sol is 10% off its official price on OceanToken, for every account. Their context windows are almost the same size, about 1.05M tokens: GPT-6.1 Sol takes 1,050,000 tokens and DeepSeek V4.1 Flash 1,048,576. Both support tool calling, reasoning, structured outputs and image input; only GPT-6.1 Sol also lists file input.
Side by side
| Spec | DeepSeek V4.1 Flash −40% | GPT-6.1 Sol −10% |
|---|---|---|
| Model | DeepSeek V4.1 Flash (1017)deepseek/ | GPT-6.1 Solopenai/ |
| Publisher | DeepSeek | OpenAI |
| Kind | Text & vision | Text & vision |
| Context window | 1.05M tokens1,048,576 | 1.05M tokens1,050,000 |
| Input price | $0.21 / 1M tokens | $1.80 / 1M tokens |
| Output price | $0.84 / 1M tokens | $9.00 / 1M tokens |
| Cached input price | $0.006 / 1M tokens | $0.10 / 1M tokens |
| Cache write price | – | $2.50 / 1M tokens |
| Web search price | – | $0.01 / search |
| Discount (vs official, top tier) | −40% | −10% |
| Inputs | text and images | text, images and files |
| Outputs | text | text |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Structured outputs | Yes | Yes |
About these prices
Which should you choose?
- Choose DeepSeek V4.1 Flash to spend less per token: 88% less for input and 91% less for output than GPT-6.1 Sol.
- Context size does not separate them: both hold about 1.05M tokens.
- Choose GPT-6.1 Sol if you need file input: DeepSeek V4.1 Flash does not list it.
- Not sure? Call both with the same OceanToken API key and compare them on your own prompts; each request is billed per use from one prepaid balance.
Get API Key DeepSeek V4.1 Flash GPT-6.1 Sol
Frequently asked questions
Which is cheaper, DeepSeek V4.1 Flash or GPT-6.1 Sol?
DeepSeek V4.1 Flash. DeepSeek V4.1 Flash costs less per token than GPT-6.1 Sol: $0.21 against $1.80 per 1M input tokens (88% less) and $0.84 against $9.00 per 1M output tokens (91% less). GPT-6.1 Sol is 10% off its official price on OceanToken, for every account. The OceanToken console always shows the current price.
Which has the larger context window, DeepSeek V4.1 Flash or GPT-6.1 Sol?
GPT-6.1 Sol, by 1,424 tokens. Their context windows are almost the same size, about 1.05M tokens: GPT-6.1 Sol takes 1,050,000 tokens and DeepSeek V4.1 Flash 1,048,576.
Can I call both DeepSeek V4.1 Flash and GPT-6.1 Sol with one API key?
Yes. Both are on the OceanToken API at https://api.oceantoken.ai/v1: one API key and one prepaid balance call either model. Send the model id deepseek/deepseek-v4.1-flash-1017 or openai/gpt-6.1-sol.
Models and publishers
DeepSeek V4.1 Flash · GPT-6.1 Sol · All DeepSeek models · All OpenAI models
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