Grok-4 Fast Reasoning vs Muse Wonder
Comparing Grok-4 Fast Reasoning and Muse Wonder across benchmarks, pricing, and capabilities.
xAI · Meta · Updated for 2026
Which is better?
Grok-4 Fast Reasoning and Muse Wonder trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
On price, Grok-4 Fast Reasoning is roughly 29.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Grok-4 Fast Reasoning also accepts a larger context window (2,000,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Grok-4 Fast Reasoning
- cost matters — it's about 29.1x cheaper per token
- you process long inputs — it offers a 2,000,000 token context window
Choose Muse Wonder
- you want the most recent training data — it shipped Oct 2026
At a glance
The differences that matter most.
Individual benchmarks
0 reported for Grok-4 Fast Reasoning · 16 for Muse Wonder
Grok-4 Fast Reasoning and Muse Wonderdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Grok-4 Fast Reasoning ($0.20/1M tokens) is 20.0x cheaper than Muse Wonder ($4.00/1M tokens).
For output processing, Grok-4 Fast Reasoning ($0.50/1M tokens) is 40.0x cheaper than Muse Wonder ($20.00/1M tokens).
In conclusion, Muse Wonder is more expensive than Grok-4 Fast Reasoning.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Grok-4 Fast Reasoning accepts 2,000,000 input tokens compared to Muse Wonder's 1,048,576 tokens. Only Grok-4 Fast Reasoning specifies output context (30,000 tokens).
Input capabilities
Documented input modalities across available providers
Both Grok-4 Fast Reasoning and Muse Wonder support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Grok-4 Fast Reasoning
Muse Wonder
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Grok-4 Fast Reasoning was released on 2025-08-28, while Muse Wonder was released on 2026-10-12.
Muse Wonder is 14 months newer than Grok-4 Fast Reasoning.
Aug 28, 2025
1.1 years ago
Oct 12, 2026
1 weeks ago
1.1yr newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Grok-4 Fast Reasoning is available from xAI. Muse Wonder is available from Meta Model API.
Grok-4 Fast Reasoning
Muse Wonder
Outputs Comparison
Judge for yourself.
Run your own prompts against Grok-4 Fast Reasoning and Muse Wonder side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok-4 Fast Reasoning vs Muse Wonder.