Kimi K3 vs DeepSeek V4 Pro: API pricing and features
Kimi K3 vs DeepSeek V4 Pro on BigModel.io: price, context, inputs and Claude Code support. Kimi K3 $2.70 / $13.50, DeepSeek V4 Pro $0.66 / $1.98 per 1M input / output tokens.
In short
- DeepSeek V4 Pro is cheaper: a typical coding-agent request (20K in, 2K out) costs about $0.017, against $0.081 on Kimi K3, which costs about 4.7 times as much.
- Only Kimi K3 works in Claude Code; use the other in OpenCode, Cline, Cursor or another OpenAI-compatible tool.
- Only Kimi K3 accepts image input.
Prices are what BigModel.io charges today, in US dollars. Quality depends on your task: try both on the same prompt before you switch.
Side by side
| Kimi K3 | DeepSeek V4 Pro | |
|---|---|---|
| Model ID | kimi-k3 | deepseek-v4-pro |
| Developer | Kimi | DeepSeek |
| Input / 1M tokens | $2.70 | $0.66 |
| Output / 1M tokens | $13.50 | $1.98 |
| Cached input / 1M | $0.30 | $0.044 |
| Below official price | 10% | 50% |
| Agent request (20K in, 2K out) | $0.081 | $0.017 |
| Context window | — | 1M |
| Inputs | Text, Image, Video | Text |
| Claude Code (/v1/messages) | Yes | No |
| Chat Completions | Yes | Yes |
Switch between them
Both use the same key and base URL. Change only the model field:
client.chat.completions.create(model="kimi-k3", ...) # or "deepseek-v4-pro"To fall back automatically when one is unavailable, send both in models: "models": ["kimi-k3", "deepseek-v4-pro"] Fallback →