Gemma 3 4B vs Grok-4 Fast Non-Reasoning
Comparing Gemma 3 4B and Grok-4 Fast Non-Reasoning across benchmarks, pricing, and capabilities.
Google · xAI · Updated for 2026
Which is better?
Gemma 3 4B and Grok-4 Fast Non-Reasoning trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
On price, Gemma 3 4B is roughly 11.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Grok-4 Fast Non-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 benchmark, pricing, and model metadata for 2026.
Choose Gemma 3 4B
- cost matters — it's about 11.0x cheaper per token
- you need open weights you can self-host or fine-tune
Choose Grok-4 Fast Non-Reasoning
- you process long inputs — it offers a 2,000,000 token context window
- you want the most recent training data — it shipped Aug 2025
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
Gemma 3 4B and Grok-4 Fast Non-Reasoningdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Arena Performance
Playground indexes and blind preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Gemma 3 4B ($0.02/1M tokens) is 10.0x cheaper than Grok-4 Fast Non-Reasoning ($0.20/1M tokens).
For output processing, Gemma 3 4B ($0.04/1M tokens) is 12.5x cheaper than Grok-4 Fast Non-Reasoning ($0.50/1M tokens).
In conclusion, Grok-4 Fast Non-Reasoning is more expensive than Gemma 3 4B.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Grok-4 Fast Non-Reasoning accepts 2,000,000 input tokens compared to Gemma 3 4B's 131,072 tokens. Gemma 3 4B can generate longer responses up to 131,072 tokens, while Grok-4 Fast Non-Reasoning is limited to 30,000 tokens.
Input Capabilities
Supported data types and modalities
Both Gemma 3 4B and Grok-4 Fast Non-Reasoning support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Gemma 3 4B
Grok-4 Fast Non-Reasoning
License
Usage and distribution terms
Gemma 3 4B is licensed under Gemma, while Grok-4 Fast Non-Reasoning uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
Gemma
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
Gemma 3 4B was released on 2025-03-12, while Grok-4 Fast Non-Reasoning was released on 2025-08-28.
Grok-4 Fast Non-Reasoning is 6 months newer than Gemma 3 4B.
Mar 12, 2025
1.5 years ago
Aug 28, 2025
12 months ago
5mo newerKnowledge Cutoff
When training data ends
Gemma 3 4B has a documented knowledge cutoff of 2024-08-01, while Grok-4 Fast Non-Reasoning's cutoff date is not specified.
We can confirm Gemma 3 4B's training data extends to 2024-08-01, but cannot make a direct comparison without Grok-4 Fast Non-Reasoning's cutoff date.
Aug 2024
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Provider Availability
Gemma 3 4B is available from DeepInfra. Grok-4 Fast Non-Reasoning is available from xAI.
Gemma 3 4B
Grok-4 Fast Non-Reasoning
Outputs Comparison
Judge for yourself.
Run your own prompts against Gemma 3 4B and Grok-4 Fast Non-Reasoning side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemma 3 4B vs Grok-4 Fast Non-Reasoning.