AI model comparison

Gemini 4 Argon vs Kimi K3

Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.

Gemini 4 Argon is Google's flagship reasoning model, built for complex software engineering, deep mathematical and scientific problem solving, and autonomous multi-step agents.

Input / 1M
$2
Output / 1M
$10
Context
1.05M

Kimi K3 is a 2.8T parameter open-weight multimodal reasoning model from Moonshot AI.

Input / 1M
$0.30
Output / 1M
$11.94
Context
1.05M

Comparing image generators? Compare image models

At a glance

Quick verdict

How the two models stack up on the things people ask about most.

Lower price

moonshotai logo

Kimi K3

1.4x cheaper for a typical chat

Higher intelligence score

google logo

Gemini 4 Argon

52.6 vs 43.6 on Artificial Analysis

Larger context window

Tie

1.05M vs 1.05M tokens

Newer release

google logo

Gemini 4 Argon

Released October 13, 2026

Benchmarks

Benchmark scores

Independent scores from Artificial Analysis. Higher is better.

Intelligence index

google logoGemini 4 Argon52.6
moonshotai logoKimi K343.6

Coding index

google logoGemini 4 ArgonNot available
moonshotai logoKimi K376.2

Agentic index

google logoGemini 4 ArgonNot available
moonshotai logoKimi K350

Pricing

Gemini 4 Argon vs Kimi K3 API pricing

Per-token API rates. Cheaper option highlighted.

Metricgoogle logoGemini 4 Argonmoonshotai logoKimi K3
Input tokensPer 1M tokens$2$0.30
Output tokensPer 1M tokens$10$11.94
Cached input (read)Per 1M tokens$0.10$0.21
Cache writePer 1M tokens$0.19Not available
Web searchPer request$0.014Not available

What it costs in practice

Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.

Chat message

2K in, 500 out

google logoGemini 4 Argon$9
moonshotai logoKimi K3$6.58

Coding task

30K in, 4K out

google logoGemini 4 Argon$100$43 cached
moonshotai logoKimi K3$56.86$54.04 cached

Long document summary

150K in, 2K out

google logoGemini 4 Argon$320$35 cached
moonshotai logoKimi K3$69.47$55.37 cached

Specs

Context window and capabilities

How much each model can read, how much it can write, and what it accepts as input.

Metricgoogle logoGemini 4 Argonmoonshotai logoKimi K3
Context window1.05M tokens1.05M tokens
Max output66K tokens944K tokens
Input typesAudio, File, Image, Text, VideoImage, Text, Video
Output typesTextText
Reasoning effort levelsHigh, Medium, LowMax, High, Low, None
Default reasoning effortMediumMax
Release dateOctober 13, 2026July 16, 2026

Features

Supported features

API features available for each model.

Metricgoogle logoGemini 4 Argonmoonshotai logoKimi K3
Tool callingSupportedSupported
Structured outputsSupportedSupported
JSON modeSupportedSupported
ReasoningSupportedSupported
TemperatureSupportedSupported
Stop sequencesSupportedSupported
Deterministic seedSupportedSupported
Verbosity controlNot supportedNot supported

Our take

Kimi K3 is 1.4x cheaper for a typical chat. Gemini 4 Argon scores higher on the Artificial Analysis Intelligence Index (52.6 vs 43.6). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.

FAQ

Frequently asked questions

Is Gemini 4 Argon or Kimi K3 cheaper?

Kimi K3 is cheaper for a typical chat (2K input tokens and 500 output tokens). Kimi K3 costs $0.30 per 1M input tokens and $11.94 per 1M output tokens, while Gemini 4 Argon costs $2 per 1M input tokens and $10 per 1M output tokens.

Which has a bigger context window, Gemini 4 Argon or Kimi K3?

Gemini 4 Argon supports up to 1.05M tokens of context, compared with 1.05M for Kimi K3.

Is Gemini 4 Argon smarter than Kimi K3?

On the Artificial Analysis Intelligence Index, Gemini 4 Argon scores 52.6 and Kimi K3 scores 43.6, putting Gemini 4 Argon ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.

Can I use Gemini 4 Argon and Kimi K3 at the same time?

Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Gemini 4 Argon and Kimi K3 answer side by side and keep the better response.

google logomoonshotai logo

Why choose? Ask both.

Send one prompt to Gemini 4 Argon and Kimi K3 at the same time. Compare the answers side by side and keep the best one.