Grok 4.1 Fast (Reasoning) vs Devstral Small (Jul '25): The Ultimate Performance & Pricing Comparison

Deep dive into reasoning, benchmarks, and latency insights.

The Final Verdict in the Grok 4.1 Fast (Reasoning) vs Devstral Small (Jul '25) Showdown

After a comprehensive analysis, Grok 4.1 Fast (Reasoning) emerges as the superior choice for users prioritizing raw intelligence and reasoning. However, Devstral Small (Jul '25) remains a highly competitive option, especially for scenarios demanding faster response times and cost-efficiency. This detailed Grok 4.1 Fast (Reasoning) vs Devstral Small (Jul '25) 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 4.1 Fast (Reasoning)

xAI

Reasoning: 9
Coding: 3
Multimodal: 3
Long Context: 5
Blended Price / 1M tokens: $0.000
P95 Latency: 1000ms
Tokens per second: 182.829tokens/sec

Devstral Small (Jul '25)

Mistral

Reasoning: 3
Coding: 1
Multimodal: 1
Long Context: 2
Blended Price / 1M tokens: $0.000
P95 Latency: 1000ms
Tokens per second: 229.86tokens/sec

Overall Capabilities

The capability radar provides a holistic view of the Grok 4.1 Fast (Reasoning) vs Devstral Small (Jul '25) matchup. This chart illustrates each model's strengths and weaknesses at a glance, forming a cornerstone of our Grok 4.1 Fast (Reasoning) vs Devstral Small (Jul '25) analysis.

This radar chart visually maps the core capabilities (reasoning, coding, math proxy, multimodal, long context) of `Grok 4.1 Fast (Reasoning)` vs `Devstral Small (Jul '25)`.

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 4.1 Fast (Reasoning) vs Devstral Small (Jul '25) debate, Grok 4.1 Fast (Reasoning) scores 90 against Devstral Small (Jul '25)'s 30. This data-driven approach is essential for any serious Grok 4.1 Fast (Reasoning) vs Devstral Small (Jul '25) 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 4.1 Fast (Reasoning) vs Devstral Small (Jul '25) decision for interactive applications. The metrics below highlight the trade-offs you should weigh before shipping to production.

Time to First Token

Grok 4.1 Fast (Reasoning)300ms

Devstral Small (Jul '25)300ms

Tokens per Second

Grok 4.1 Fast (Reasoning)182.829

Devstral Small (Jul '25)229.86

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The Economics of Grok 4.1 Fast (Reasoning) vs Devstral Small (Jul '25)

Power is only one part of the equation. This Grok 4.1 Fast (Reasoning) vs Devstral Small (Jul '25) 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 4.1 Fast (Reasoning) would cost $0.000, whereas Devstral Small (Jul '25) would cost $0.000. This practical calculation is vital for any developer considering the Grok 4.1 Fast (Reasoning) vs Devstral Small (Jul '25) choice.

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Which Model Wins the Grok 4.1 Fast (Reasoning) vs Devstral Small (Jul '25) Battle for You?

Choose Grok 4.1 Fast (Reasoning) if...

Your top priority is raw performance and capability.

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

Cost is a secondary concern to power in your Grok 4.1 Fast (Reasoning) vs Devstral Small (Jul '25) decision.

Choose Devstral Small (Jul '25) if...

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

Your budget is a primary consideration in the Grok 4.1 Fast (Reasoning) vs Devstral Small (Jul '25) choice.

You are developing at scale where operational costs are critical.

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Your Questions about the Grok 4.1 Fast (Reasoning) vs Devstral Small (Jul '25) Comparison

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Data source: https://artificialanalysis.ai/