AI model comparison

Grok 4.7 vs Muse Spark 1.3

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

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

Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows.

Input / 1M
$1.25
Output / 1M
$4.25
Context
1.05M

At a glance

Quick verdict

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

Lower price

meta logo

Muse Spark 1.3

1.5x cheaper for a typical chat

Higher intelligence score

meta logo

Muse Spark 1.3

48.1 vs 46.4 on Artificial Analysis

Larger context window

meta logo

Muse Spark 1.3

1.05M vs 500K tokens

Newer release

x-ai logo

Grok 4.7

Released September 21, 2026

Benchmarks

Benchmark scores

Independent scores from Artificial Analysis. Higher is better.

Intelligence index

x-ai logoGrok 4.746.4
meta logoMuse Spark 1.348.1

Coding index

x-ai logoGrok 4.7Not available
meta logoMuse Spark 1.375.8

Agentic index

x-ai logoGrok 4.7Not available
meta logoMuse Spark 1.355.5

Pricing

Grok 4.7 vs Muse Spark 1.3 API pricing

Per-token API rates. Cheaper option highlighted.

Metricx-ai logoGrok 4.7meta logoMuse Spark 1.3
Input tokensPer 1M tokens$2$1.25
Output tokensPer 1M tokens$6$4.25
Cached input (read)Per 1M tokens$0.50$0.15
Cache writePer 1M tokensNot availableNot available
Long-context pricingPer 1M tokens, for very long prompts$4 in / $12 out above 200KSame rate at any length
Web searchPer request$0.005$0.0025

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

x-ai logoGrok 4.7$7
meta logoMuse Spark 1.3$4.63

Coding task

30K in, 4K out

x-ai logoGrok 4.7$84$39 cached
meta logoMuse Spark 1.3$54.50$21.50 cached

Long document summary

150K in, 2K out

x-ai logoGrok 4.7$312$87 cached
meta logoMuse Spark 1.3$196$31 cached

Specs

Context window and capabilities

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

Metricx-ai logoGrok 4.7meta logoMuse Spark 1.3
Context window500K tokens1.05M tokens
Max output450K tokens944K tokens
Input typesFile, Image, TextFile, Image, Text, Video
Output typesTextText
Reasoning effort levelsExtra high, High, Medium, LowMax, Extra high, High, Medium, Low, Minimal
Default reasoning effortHighMedium
Release dateSeptember 21, 2026September 2, 2026

Features

Supported features

API features available for each model.

Metricx-ai logoGrok 4.7meta logoMuse Spark 1.3
Tool callingSupportedSupported
Structured outputsSupportedSupported
JSON modeSupportedSupported
ReasoningSupportedSupported
TemperatureSupportedSupported
Stop sequencesNot supportedNot supported
Deterministic seedSupportedNot supported
Verbosity controlNot supportedNot supported

Our take

Muse Spark 1.3 is 1.5x cheaper for a typical chat. Muse Spark 1.3 scores higher on the Artificial Analysis Intelligence Index (48.1 vs 46.4). Muse Spark 1.3 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 Grok 4.7 or Muse Spark 1.3 cheaper?

Muse Spark 1.3 is cheaper for a typical chat (2K input tokens and 500 output tokens). Muse Spark 1.3 costs $1.25 per 1M input tokens and $4.25 per 1M output tokens, while Grok 4.7 costs $2 per 1M input tokens and $6 per 1M output tokens.

Which has a bigger context window, Grok 4.7 or Muse Spark 1.3?

Muse Spark 1.3 supports up to 1.05M tokens of context, compared with 500K for Grok 4.7.

Is Grok 4.7 smarter than Muse Spark 1.3?

On the Artificial Analysis Intelligence Index, Grok 4.7 scores 46.4 and Muse Spark 1.3 scores 48.1, putting Muse Spark 1.3 ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.

Can I use Grok 4.7 and Muse Spark 1.3 at the same time?

Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Grok 4.7 and Muse Spark 1.3 answer side by side and keep the better response.

x-ai logometa logo

Why choose? Ask both.

Send one prompt to Grok 4.7 and Muse Spark 1.3 at the same time. Compare the answers side by side and keep the best one.