Model Comparison

Gemini 3 Flash vs Grok Code Fast 1

Gemini 3 Flash significantly outperforms across most benchmarks. Grok Code Fast 1 is 2.1x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Gemini 3 Flash outperforms in 1 benchmarks (SWE-Bench Verified), while Grok Code Fast 1 is better at 0 benchmarks.

Gemini 3 Flash significantly outperforms across most benchmarks.

Sat May 30 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Grok Code Fast 1 costs less

For input processing, Gemini 3 Flash ($0.50/1M tokens) is 2.5x more expensive than Grok Code Fast 1 ($0.20/1M tokens).

For output processing, Gemini 3 Flash ($3.00/1M tokens) is 2.0x more expensive than Grok Code Fast 1 ($1.50/1M tokens).

In conclusion, Gemini 3 Flash is more expensive than Grok Code Fast 1.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Sat May 30 2026 • llm-stats.com
Google
Gemini 3 Flash
Input tokens$0.50
Output tokens$3.00
Best providerGoogle
xAI
Grok Code Fast 1
Input tokens$0.20
Output tokens$1.50
Best providerxAI
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Context Window

Maximum input and output token capacity

Gemini 3 Flash accepts 1,000,000 input tokens compared to Grok Code Fast 1's 256,000 tokens. Gemini 3 Flash can generate longer responses up to 65,536 tokens, while Grok Code Fast 1 is limited to 10,000 tokens.

Google
Gemini 3 Flash
Input1,000,000 tokens
Output65,536 tokens
xAI
Grok Code Fast 1
Input256,000 tokens
Output10,000 tokens
Sat May 30 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Gemini 3 Flash supports multimodal inputs, whereas Grok Code Fast 1 does not.

Gemini 3 Flash can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 3 Flash

Text
Images
Audio
Video

Grok Code Fast 1

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Gemini 3 Flash

Proprietary

Closed source

Grok Code Fast 1

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3 Flash was released on 2025-12-17, while Grok Code Fast 1 was released on 2025-08-28.

Gemini 3 Flash is 4 months newer than Grok Code Fast 1.

Gemini 3 Flash

Dec 17, 2025

5 months ago

3mo newer
Grok Code Fast 1

Aug 28, 2025

9 months ago

Knowledge Cutoff

When training data ends

Gemini 3 Flash has a documented knowledge cutoff of 2025-01-31, while Grok Code Fast 1's cutoff date is not specified.

We can confirm Gemini 3 Flash's training data extends to 2025-01-31, but cannot make a direct comparison without Grok Code Fast 1's cutoff date.

Gemini 3 Flash

Jan 2025

Grok Code Fast 1

—

Provider Availability

Gemini 3 Flash is available from Google. Grok Code Fast 1 is available from xAI.

Gemini 3 Flash

google logo
Google
Input Price:Input: $0.50/1MOutput Price:Output: $3.00/1M

Grok Code Fast 1

xai logo
xAI
Input Price:Input: $0.20/1MOutput Price:Output: $1.50/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Google
Larger context window (1,000,000 tokens)
Supports multimodal inputs
Higher SWE-Bench Verified score (78.0% vs 70.8%)
xAI
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini 3 Flash
xAI
Grok Code Fast 1

FAQ

Common questions about Gemini 3 Flash vs Grok Code Fast 1.

Which is better, Gemini 3 Flash or Grok Code Fast 1?

Gemini 3 Flash significantly outperforms across most benchmarks. Gemini 3 Flash is made by Google and Grok Code Fast 1 is made by xAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemini 3 Flash compare to Grok Code Fast 1 in benchmarks?

Gemini 3 Flash scores Vending-Bench 2: 100.0%, AIME 2025: 99.7%, Global PIQA: 92.8%, MMMLU: 91.8%, GPQA: 90.4%. Grok Code Fast 1 scores SWE-Bench Verified: 70.8%.

Is Gemini 3 Flash cheaper than Grok Code Fast 1?

Grok Code Fast 1 is 2.5x cheaper for input tokens. Gemini 3 Flash costs $0.50/M input and $3.00/M output via google. Grok Code Fast 1 costs $0.20/M input and $1.50/M output via xai.

What are the context window sizes for Gemini 3 Flash and Grok Code Fast 1?

Gemini 3 Flash supports 1.0M tokens and Grok Code Fast 1 supports 256K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 3 Flash and Grok Code Fast 1?

Key differences include context window (1.0M vs 256K), input pricing ($0.50 vs $0.20/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3 Flash and Grok Code Fast 1?

Gemini 3 Flash is developed by Google and Grok Code Fast 1 is developed by xAI.