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Muse Spark 1.1 vs Grok 4.20

At a glance
MetaMuse Spark 1.1

Meta's multimodal reasoning model built for agentic work and real-world coding.

1.0M ctx$1.25/$4.25 per M
xAIGrok 4.20

xAI's newest flagship model with industry-leading speed and agentic tool calling.

862M ctx$1.25/$2.50 per M#12/92
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
MetaMuse Spark 1.1
Reasoning
CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-07-16
Capability
Capability—
Reasoning & Knowledge
Expert-Level52.2%
Agentic
Terminal Tasks80.0%Novel Reasoning—
xAIGrok 4.20
Reasoning
CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper
Capability
CapabilityECI85.7
Reasoning & Knowledge
Expert-Level—
Agentic
Terminal Tasks57.3%Novel Reasoning65.1%
Specs
MetaMuse Spark 1.1
1.0M
Context
16K
Max output
Jul 2026
Released
xAIGrok 4.20
2M
Context
16K
Max output
Mar 2026
Released
Capabilities
MetaMuse Spark 1.1
Vision
Audio
Reasoning
xAIGrok 4.20
Vision
Audio
Reasoning
Pricing
MetaMuse Spark 1.1
Live pricing, shown before you run
Input$1.25/M tokens
Output$4.25/M tokens
Cache read$0.15/M tokens
Web search$0.003/search
xAIGrok 4.20
Live pricing, shown before you run
Input$1.25/M tokens
Output$2.50/M tokens
Cache read$0.20/M tokens
Web search$0.005/search
Chat with Muse Spark 1.1Go to model
Chat with Grok 4.20Go to model
Frequently Asked Questions: Muse Spark 1.1 vs Grok 4.20▼

Which is better, Muse Spark 1.1 or Grok 4.20?

▼

Both Muse Spark 1.1 and Grok 4.20 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Muse Spark 1.1 or Grok 4.20?

▼

Grok 4.20 has a lower blended cost. Muse Spark 1.1: $1.25 input / $4.25 output. Grok 4.20: $1.25 input / $2.50 output.

Which has a larger context window, Muse Spark 1.1 or Grok 4.20?

▼

Grok 4.20 has a larger context window: Muse Spark 1.1 supports 1M tokens vs Grok 4.20 at 2M tokens.

Do both Muse Spark 1.1 and Grok 4.20 support vision?

▼

Yes, both Muse Spark 1.1 and Grok 4.20 support vision/image input.

What are the key differences between Muse Spark 1.1 and Grok 4.20?

▼

Muse Spark 1.1 and Grok 4.20 have similar overall capabilities. The main differences lie in pricing, context window size, and provider-specific strengths. Use this comparison page to review all metrics side by side.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Muse Spark 1.1 and Grok 4.20 for free on idapt.app to see which performs better for your specific needs.

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