Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1: The Ultimate Performance & Pricing Comparison

Deep dive into reasoning, benchmarks, and latency insights.

The Final Verdict in the Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1 Showdown

After a comprehensive analysis, Grok 4.20 0309 (Reasoning) emerges as the superior choice for users prioritizing raw intelligence and reasoning. However, Grok Code Fast 1 remains a highly competitive option, especially for scenarios demanding faster response times and cost-efficiency. This detailed Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1 comparison will break down every critical metric to help you make the best decision.

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Model Snapshot

Key decision metrics at a glance.

Grok 4.20 0309 (Reasoning)

xAI

Reasoning: 6
Coding: 4
Multimodal: 4
Long Context: 6
Blended Price / 1M tokens: $0.003
P95 Latency: 1000ms
Tokens per second: 246.896tokens/sec

Grok Code Fast 1

xAI

Reasoning: 4
Coding: 2
Multimodal: 2
Long Context: 4
Blended Price / 1M tokens: $0.001
P95 Latency: 1000ms
Tokens per second: 139.071tokens/sec

Overall Capabilities

The capability radar provides a holistic view of the Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1 matchup. This chart illustrates each model's strengths and weaknesses at a glance, forming a cornerstone of our Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1 analysis.

This radar chart visually maps the core capabilities (reasoning, coding, math proxy, multimodal, long context) of `Grok 4.20 0309 (Reasoning)` vs `Grok Code Fast 1`.

Benchmark Breakdown

For a granular look, this chart directly compares scores across standardized benchmarks. In the critical MMLU Pro test, a key part of the Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1 debate, Grok 4.20 0309 (Reasoning) scores 60 against Grok Code Fast 1's 40. This data-driven approach is essential for any serious Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1 comparison.

This grouped bar chart provides a side-by-side comparison for each benchmark metric.

Speed & Latency

Speed is a crucial factor in the Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1 decision for interactive applications. The metrics below highlight the trade-offs you should weigh before shipping to production.

Time to First Token

Grok 4.20 0309 (Reasoning)300ms

Grok Code Fast 1300ms

Tokens per Second

Grok 4.20 0309 (Reasoning)246.896

Grok Code Fast 1139.071

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The Economics of Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1

Power is only one part of the equation. This Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1 pricing analysis gives you a true sense of value.

Pricing Breakdown

Compare input and output pricing at a glance.

Real-World Cost Scenario

To process 1M input tokens and generate 250k output tokens, Grok 4.20 0309 (Reasoning) would cost $0.004, whereas Grok Code Fast 1 would cost $0.001. This practical calculation is vital for any developer considering the Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1 choice.

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Which Model Wins the Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1 Battle for You?

Choose Grok 4.20 0309 (Reasoning) if...

You are working in a technical or scientific field requiring the highest accuracy.

Cost is a secondary concern to power in your Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1 decision.

You need the most advanced reasoning capabilities available.

Choose Grok Code Fast 1 if...

You need a highly responsive model for user-facing applications.

Your budget is a primary consideration in the Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1 choice.

You are developing at scale where operational costs are critical.

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Your Questions about the Grok 4.20 0309 (Reasoning) vs Grok Code Fast 1 Comparison

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