Google: Gemini 4 Argon vs Kimi K2.5
google/gemini-4-argon · moonshotai/kimi-k2.5
As of November 2, 2026, Kimi K2.5 is the cheaper API on UberLLM: $0.0041 per million input tokens and $0.0205 per million output, versus $0.3991 / $2.00 for Google: Gemini 4 Argon, about 99% less when output is 3 tokens for every input token. These are the best prices on the market right now. Both work with one OpenAI-compatible key and UberLLM adds no fee. Choose Kimi K2.5 to cut cost; choose Google: Gemini 4 Argon when context size wins. Google: Gemini 4 Argon carries the larger context window (1,048,576 vs 256,000 tokens), which can matter for long-document work.
Google: Gemini 4 Argon vs Kimi K2.5, side by side
| Spec | Google: Gemini 4 Argon | Kimi K2.5 |
|---|---|---|
| Price · input / 1M | $0.3991 | $0.0041 |
| Price · output / 1M | $2.00 | $0.0205 |
| Context length | 1,048,576 | 256,000 |
| Max output tokens | 65,536 | 65,536 |
| Input modalities | text, image, video, audio, file | text, image |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | Yes | Yes |
| Reasoning | Yes | Yes |
| % off list | 80% off | 99.2% off |
Best prices on UberLLM right now. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 2, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
Google: Gemini 4 Argon vs Kimi K2.5 — FAQ
Is Google: Gemini 4 Argon or Kimi K2.5 cheaper?
Kimi K2.5 is cheaper on a blended token mix, by about 99%. A request costs what its provider charged, UberLLM adds no fee, and every request is listed with its cost in Activity.
What's the price difference between Google: Gemini 4 Argon and Kimi K2.5?
Google: Gemini 4 Argon: $0.3991 in / $2.00 out per 1M tokens. Kimi K2.5: $0.0041 in / $0.0205 out per 1M tokens. That's roughly a 99% blended difference. Prices are live; UberLLM adds no fee.
Can I use both Google: Gemini 4 Argon and Kimi K2.5 with one API?
Yes. Both are served through a single OpenAI-compatible endpoint — set the base URL to https://api.uberllm.dev/v1 and your UberLLM key, then switch between them by changing the model id. Anthropic SDKs work via https://api.uberllm.dev/v1/messages.