gpt-oss-20B (high) vs Devstral Small (Jul '25): The Ultimate Performance & Pricing Comparison

Deep dive into reasoning, benchmarks, and latency insights.

The Final Verdict in the gpt-oss-20B (high) vs Devstral Small (Jul '25) Showdown

After a comprehensive analysis, gpt-oss-20B (high) 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 gpt-oss-20B (high) 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.

gpt-oss-20B (high)

OpenAI

Reasoning: 9
Coding: 2
Multimodal: 2
Long Context: 3
Blended Price / 1M tokens: $0.000
P95 Latency: 1000ms
Tokens per second: 259.257tokens/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: 226.29tokens/sec

Overall Capabilities

The capability radar provides a holistic view of the gpt-oss-20B (high) vs Devstral Small (Jul '25) matchup. This chart illustrates each model's strengths and weaknesses at a glance, forming a cornerstone of our gpt-oss-20B (high) vs Devstral Small (Jul '25) analysis.

This radar chart visually maps the core capabilities (reasoning, coding, math proxy, multimodal, long context) of `gpt-oss-20B (high)` 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 gpt-oss-20B (high) vs Devstral Small (Jul '25) debate, gpt-oss-20B (high) scores 90 against Devstral Small (Jul '25)'s 30. This data-driven approach is essential for any serious gpt-oss-20B (high) 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 gpt-oss-20B (high) 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

gpt-oss-20B (high)300ms

Devstral Small (Jul '25)300ms

Tokens per Second

gpt-oss-20B (high)259.257

Devstral Small (Jul '25)226.29

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The Economics of gpt-oss-20B (high) vs Devstral Small (Jul '25)

Power is only one part of the equation. This gpt-oss-20B (high) 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, gpt-oss-20B (high) would cost $0.000, whereas Devstral Small (Jul '25) would cost $0.000. This practical calculation is vital for any developer considering the gpt-oss-20B (high) vs Devstral Small (Jul '25) choice.

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Which Model Wins the gpt-oss-20B (high) vs Devstral Small (Jul '25) Battle for You?

Choose gpt-oss-20B (high) if...

Your top priority is raw performance and capability.

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

You need the most advanced reasoning capabilities available.

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

You are developing at scale where operational costs are critical.

You prioritize cost-effectiveness over maximum performance.

Your workload requires consistent, reliable performance.

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Your Questions about the gpt-oss-20B (high) vs Devstral Small (Jul '25) Comparison

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Data source: https://artificialanalysis.ai/