Kimi K3 vs Gemini 4 Argon: price, context window and capabilities
Kimi K3 (moonshotai/kimi-k3) from MoonshotAI and Gemini 4 Argon (google/gemini-4-argon) from Google are both multimodal language models on the OceanToken API. Gemini 4 Argon costs less per token than Kimi K3: $1.80 against $3.00 per 1M input tokens (40% less) and $9.00 against $15.00 per 1M output tokens (40% less). Gemini 4 Argon is 10% off its official price on OceanToken, for every account. Both have a 1.05M-token context window (1,048,576 tokens). Both support tool calling, reasoning, structured outputs, image input and video input; only Gemini 4 Argon also lists file input and audio input.
Side by side
| Spec | Kimi K3 | Gemini 4 Argon −10% |
|---|---|---|
| Model | Kimi K3moonshotai/ | Gemini 4 Argongoogle/ |
| Publisher | MoonshotAI | |
| Kind | Text, vision & video | Text, vision, audio & video |
| Context window | 1.05M tokens1,048,576 | 1.05M tokens1,048,576 |
| Input price | $3.00 / 1M tokens | $1.80 / 1M tokens |
| Output price | $15.00 / 1M tokens | $9.00 / 1M tokens |
| Cached input price | $0.30 / 1M tokens | $0.10 / 1M tokens |
| Cache write price | – | $2.188 / 1M tokens |
| Web search price | – | $0.014 / search |
| Discount (vs official, top tier) | — | −10% |
| Inputs | text, images and video | text, images, files, audio and video |
| Outputs | text | text |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Structured outputs | Yes | Yes |
About these prices
Which should you choose?
- Choose Gemini 4 Argon to spend less per token: 40% less for input and 40% less for output than Kimi K3.
- Context size does not separate them: both hold about 1.05M tokens.
- Choose Gemini 4 Argon if you need file input and audio input: Kimi K3 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 Gemini 4 Argon
Frequently asked questions
Which is cheaper, Kimi K3 or Gemini 4 Argon?
Gemini 4 Argon. Gemini 4 Argon costs less per token than Kimi K3: $1.80 against $3.00 per 1M input tokens (40% less) and $9.00 against $15.00 per 1M output tokens (40% less). Gemini 4 Argon 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, Kimi K3 or Gemini 4 Argon?
Neither. Both have a 1.05M-token context window (1,048,576 tokens).
Can I call both Kimi K3 and Gemini 4 Argon 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 google/gemini-4-argon.
Models and publishers
Kimi K3 · Gemini 4 Argon · All MoonshotAI models · All Google models
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