Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2: The Ultimate Performance & Pricing Comparison

Deep dive into reasoning, benchmarks, and latency insights.

The Final Verdict in the Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2 Showdown

After a comprehensive analysis, Claude Opus 4.5 (Reasoning) emerges as the superior choice for users prioritizing raw intelligence and reasoning. However, Magistral Small 1.2 remains a highly competitive option, especially for scenarios demanding faster response times and cost-efficiency. This detailed Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2 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.

Claude Opus 4.5 (Reasoning)

Anthropic

Reasoning: 9
Coding: 5
Multimodal: 4
Long Context: 6
Blended Price / 1M tokens: $0.010
P95 Latency: 1000ms
Tokens per second: 80.264tokens/sec

Magistral Small 1.2

Mistral

Reasoning: 8
Coding: 1
Multimodal: 2
Long Context: 3
Blended Price / 1M tokens: $0.001
P95 Latency: 1000ms
Tokens per second: 182.755tokens/sec

Overall Capabilities

The capability radar provides a holistic view of the Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2 matchup. This chart illustrates each model's strengths and weaknesses at a glance, forming a cornerstone of our Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2 analysis.

This radar chart visually maps the core capabilities (reasoning, coding, math proxy, multimodal, long context) of `Claude Opus 4.5 (Reasoning)` vs `Magistral Small 1.2`.

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 Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2 debate, Claude Opus 4.5 (Reasoning) scores 90 against Magistral Small 1.2's 80. This data-driven approach is essential for any serious Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2 comparison.

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

Speed & Latency

Speed is a crucial factor in the Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2 decision for interactive applications. The metrics below highlight the trade-offs you should weigh before shipping to production.

Time to First Token

Claude Opus 4.5 (Reasoning)300ms

Magistral Small 1.2300ms

Tokens per Second

Claude Opus 4.5 (Reasoning)80.264

Magistral Small 1.2182.755

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The Economics of Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2

Power is only one part of the equation. This Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2 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, Claude Opus 4.5 (Reasoning) would cost $0.011, whereas Magistral Small 1.2 would cost $0.001. This practical calculation is vital for any developer considering the Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2 choice.

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Which Model Wins the Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2 Battle for You?

Choose Claude Opus 4.5 (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 Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2 decision.

Choose Magistral Small 1.2 if...

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

Your budget is a primary consideration in the Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2 choice.

You are developing at scale where operational costs are critical.

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Your Questions about the Claude Opus 4.5 (Reasoning) vs Magistral Small 1.2 Comparison

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Data source: https://artificialanalysis.ai/