Kimi K3 vs DeepSeek V4 Pro: price, context window and capabilities
Kimi K3 (moonshotai/kimi-k3) is a multimodal language model from MoonshotAI and DeepSeek V4 Pro (deepseek/deepseek-v4-pro) a language model from DeepSeek; both are on the OceanToken API. DeepSeek V4 Pro costs less per token than Kimi K3: $1.056 against $3.00 per 1M input tokens (65% less) and $3.168 against $15.00 per 1M output tokens (79% less). Both have a 1.05M-token context window (1,048,576 tokens). Both support tool calling, reasoning and structured outputs; only Kimi K3 also lists image input and video input.
Side by side
| Spec | Kimi K3 | DeepSeek V4 Pro −40% |
|---|---|---|
| Model | Kimi K3moonshotai/ | DeepSeek V4 Prodeepseek/ |
| Publisher | MoonshotAI | DeepSeek |
| Kind | Text, vision & video | Text |
| Context window | 1.05M tokens1,048,576 | 1.05M tokens1,048,576 |
| Input price | $3.00 / 1M tokens | $1.056 / 1M tokens |
| Output price | $15.00 / 1M tokens | $3.168 / 1M tokens |
| Cached input price | $0.30 / 1M tokens | $0.044 / 1M tokens |
| Discount (vs official, top tier) | — | −40% |
| Inputs | text, images and video | text |
| Outputs | text | text |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Structured outputs | Yes | Yes |
About these prices
Which should you choose?
- Choose DeepSeek V4 Pro to spend less per token: 65% less for input and 79% less for output than Kimi K3.
- Context size does not separate them: both hold about 1.05M tokens.
- Choose Kimi K3 if you need image input and video input: DeepSeek V4 Pro does not list them.
- 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 Kimi K3 DeepSeek V4 Pro
Frequently asked questions
Which is cheaper, Kimi K3 or DeepSeek V4 Pro?
DeepSeek V4 Pro. DeepSeek V4 Pro costs less per token than Kimi K3: $1.056 against $3.00 per 1M input tokens (65% less) and $3.168 against $15.00 per 1M output tokens (79% less). These are OceanToken starting prices per use; the OceanToken console always shows the current price.
Which has the larger context window, Kimi K3 or DeepSeek V4 Pro?
Neither. Both have a 1.05M-token context window (1,048,576 tokens).
Can I call both Kimi K3 and DeepSeek V4 Pro 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 moonshotai/kimi-k3 or deepseek/deepseek-v4-pro.
Models and publishers
Kimi K3 · DeepSeek V4 Pro · All MoonshotAI models · All DeepSeek models
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