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Model comparison - Similar price, same tier

Gemini 4 Argon vs Kimi K3

Gemini 4 Argon is from Google and Kimi K3 is from Moonshot AI. On list price, Kimi K3 charges 1.5x Gemini 4 Argon's input price ($3 vs $2 per 1M tokens), and Kimi K3 charges 1.5x Gemini 4 Argon's output price ($15 vs $10 per 1M tokens). Gemini 4 Argon and Kimi K3 both have a 1,048,576-token context window; max output is 65,536 and 1,048,576 tokens per response. Gemini 4 Argon was released on October 13, 2026; no primary source states a release date for Kimi K3. Kimi K3 publishes open weights (Kimi K3 License (Hugging Face license tag: other)); Gemini 4 Argon is closed-weights.

Last verified from each provider's pricing page. All sources

Google - Closed

Gemini 4 Argon
Input / 1M
$2
Output / 1M
$10
Context
1.05M

Moonshot AI - Open

Kimi K3
Input / 1M
$3
Output / 1M
$15
Context
1.05M

Side-by-side specs

SpecGemini 4 ArgonKimi K3
ProviderGoogleMoonshot AI
Input / 1M tokens$2$3
Output / 1M tokens$10$15
Cache read / 1M$0.10$0.30
Cache write / 1M-$3
Batch input / 1M$1-
Batch output / 1M$5-
Context window1,048,5761,048,576
Max output65,5361,048,576
Release date-
WeightsClosedOpen
License-Kimi K3 License (Hugging Face license tag: other)
API model idgemini-4-argonkimi-k3
AI Gateway idgoogle/gemini-4-argonmoonshotai/kimi-k3
Last verified

Prices in USD per 1M tokens at each provider's standard first-party rate. A dash means the provider does not bill that item separately or no primary page states it.

What each costs in practice

The same three workloads every model page uses, worked from each model's standard list rates. Swap in your own token counts with the math on each model's page.

WorkloadGemini 4 ArgonKimi K3
One agent session1M input tokens and 100K output tokens, no caching.$3.00$4.50
A chat app10,000 requests a day at 2K input and 500 output tokens each.$90.00$2,700.00 per 30-day month$135.00$4,050.00 per 30-day month
The same session at a 90% cache hit90% of the input is read from the prompt cache. The one-time cache write premium is not included.$1.29$2.07
Show the math

Gemini 4 Argon

  • One agent sessionInput: 1M x $2 = $2.00Output: 0.1M x $10 = $1.00
  • A chat appInput: 20M x $2 = $40.00Output: 5M x $10 = $50.00
  • The same session at a 90% cache hitCached input: 0.9M x $0.10 = $0.09Uncached input: 0.1M x $2 = $0.20Output: 0.1M x $10 = $1.00

Kimi K3

  • One agent sessionInput: 1M x $3 = $3.00Output: 0.1M x $15 = $1.50
  • A chat appInput: 20M x $3 = $60.00Output: 5M x $15 = $75.00
  • The same session at a 90% cache hitCached input: 0.9M x $0.30 = $0.27Uncached input: 0.1M x $3 = $0.30Output: 0.1M x $15 = $1.50

Benchmarks under the same setting

Only boards that list both models under the same run setting appear here, one row per board and setting, with each score exactly as the board shows it. Scores on different boards use different scales and are never combined.

Board and settingGemini 4 ArgonKimi K3
LMArena Text (Text Arena Overall)Text Arena Overall, default leaderboard view (8,834,211 votes, 416 models)Official leaderboard - arena.ai1524±9 (Preliminary)1487±5
LMArena WebDev (Code Arena WebDev Overall)Code Arena WebDev Overall, default leaderboard view (891,922 votes, 145 models)Official leaderboard - arena.ai1678+15/-15 (Preliminary)1655+6/-6

Set them up in your tools

Step-by-step guides whose official docs list Gemini 4 Argon or Kimi K3 by model id.

Model pages

GoogleGemini 4 Argon pricing and specsFull rate card, worked cost examples and sources. Closed weights.Moonshot AIKimi K3 pricing and specsFull rate card, worked cost examples and sources. Open weights.

FAQ

How do Gemini 4 Argon and Kimi K3 compare on price?

On list price, Kimi K3 charges 1.5x Gemini 4 Argon's input price ($3 vs $2 per 1M tokens), and Kimi K3 charges 1.5x Gemini 4 Argon's output price ($15 vs $10 per 1M tokens). For one agent session of 1M input and 100K output tokens with no caching, that is $3.00 on Gemini 4 Argon and $4.50 on Kimi K3. Prices are each provider's first-party list rates, verified October 17, 2026 and October 17, 2026.

What are the context windows of Gemini 4 Argon and Kimi K3?

Gemini 4 Argon and Kimi K3 both have a 1,048,576-token context window; max output is 65,536 and 1,048,576 tokens per response.

Are Gemini 4 Argon and Kimi K3 open weights?

Gemini 4 Argon is closed-weights and is called through Google's API as gemini-4-argon. Kimi K3's weights are published at huggingface.co under the Kimi K3 License (Hugging Face license tag: other).

More comparisons

Sources

Gemini 4 Argon verified from ai.google.dev; Kimi K3 verified from platform.kimi.ai. This page is as current as the older of the two: .

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