AI model comparison

Kimi K3.1 Pro vs Grok 4.7

Side by side comparison of Kimi K3.1 Pro and Grok 4.7 on pricing, benchmark scores, context window, and more.

Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window.

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

Grok 4.7 is SpaceXAI's flagship model for coding, agentic tasks, and knowledge work, succeeding Grok 4.6.

Input / 1M
$2
Output / 1M
$6
Context
500K

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

x-ai logo

Grok 4.7

1.3x cheaper for a typical chat

Higher intelligence score

moonshotai logo

Kimi K3.1 Pro

55.1 vs 46.4 on Artificial Analysis

Larger context window

moonshotai logo

Kimi K3.1 Pro

1.05M vs 500K tokens

Newer release

moonshotai logo

Kimi K3.1 Pro

Released October 23, 2026

Benchmarks

Benchmark scores

Independent scores from Artificial Analysis. Higher is better.

Intelligence index

moonshotai logoKimi K3.1 Pro55.1
x-ai logoGrok 4.746.4

Coding index

moonshotai logoKimi K3.1 ProNot available
x-ai logoGrok 4.7Not available

Agentic index

moonshotai logoKimi K3.1 ProNot available
x-ai logoGrok 4.7Not available

Pricing

Kimi K3.1 Pro vs Grok 4.7 API pricing

Per-token API rates. Cheaper option highlighted.

Metricmoonshotai logoKimi K3.1 Prox-ai logoGrok 4.7
Input tokensPer 1M tokens$2$2
Output tokensPer 1M tokens$10$6
Cached input (read)Per 1M tokens$0.20$0.50
Cache writePer 1M tokensNot availableNot available
Long-context pricingPer 1M tokens, for very long promptsSame rate at any length$4 in / $12 out above 200K
Web searchPer requestNot available$0.005

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

moonshotai logoKimi K3.1 Pro$9
x-ai logoGrok 4.7$7

Coding task

30K in, 4K out

moonshotai logoKimi K3.1 Pro$100$46 cached
x-ai logoGrok 4.7$84$39 cached

Long document summary

150K in, 2K out

moonshotai logoKimi K3.1 Pro$320$50 cached
x-ai logoGrok 4.7$312$87 cached

Specs

Context window and capabilities

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

Metricmoonshotai logoKimi K3.1 Prox-ai logoGrok 4.7
Context window1.05M tokens500K tokens
Max output944K tokens450K tokens
Input typesImage, Text, VideoFile, Image, Text
Output typesTextText
Reasoning effort levelsMax, High, Low, NoneExtra high, High, Medium, Low
Default reasoning effortMaxHigh
Release dateOctober 23, 2026September 21, 2026

Features

Supported features

API features available for each model.

Metricmoonshotai logoKimi K3.1 Prox-ai logoGrok 4.7
Tool callingSupportedSupported
Structured outputsSupportedSupported
JSON modeSupportedSupported
ReasoningSupportedSupported
TemperatureNot supportedSupported
Stop sequencesSupportedNot supported
Deterministic seedNot supportedSupported
Verbosity controlNot supportedNot supported

Our take

Grok 4.7 is 1.3x cheaper for a typical chat. Kimi K3.1 Pro scores higher on the Artificial Analysis Intelligence Index (55.1 vs 46.4). Kimi K3.1 Pro has the larger context window (1.05M vs 500K tokens). 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 Kimi K3.1 Pro or Grok 4.7 cheaper?

Grok 4.7 is cheaper for a typical chat (2K input tokens and 500 output tokens). Grok 4.7 costs $2 per 1M input tokens and $6 per 1M output tokens, while Kimi K3.1 Pro costs $2 per 1M input tokens and $10 per 1M output tokens.

Which has a bigger context window, Kimi K3.1 Pro or Grok 4.7?

Kimi K3.1 Pro supports up to 1.05M tokens of context, compared with 500K for Grok 4.7.

Is Kimi K3.1 Pro smarter than Grok 4.7?

On the Artificial Analysis Intelligence Index, Kimi K3.1 Pro scores 55.1 and Grok 4.7 scores 46.4, putting Kimi K3.1 Pro ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.

Can I use Kimi K3.1 Pro and Grok 4.7 at the same time?

Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Kimi K3.1 Pro and Grok 4.7 answer side by side and keep the better response.

moonshotai logox-ai logo

Why choose? Ask both.

Send one prompt to Kimi K3.1 Pro and Grok 4.7 at the same time. Compare the answers side by side and keep the best one.