o3 vs Llama 3.1 Instruct 405B: The Ultimate Performance & Pricing Comparison

Deep dive into reasoning, benchmarks, and latency insights.

The Final Verdict in the o3 vs Llama 3.1 Instruct 405B Showdown

After a comprehensive analysis, o3 emerges as the superior choice for users prioritizing raw intelligence and reasoning. However, Llama 3.1 Instruct 405B remains a highly competitive option, especially for scenarios demanding faster response times and cost-efficiency. This detailed o3 vs Llama 3.1 Instruct 405B 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.

OpenAI

Reasoning: 9
Coding: 4
Multimodal: 3
Long Context: 5
Blended Price / 1M tokens: $0.004
P95 Latency: 1000ms
Tokens per second: 208.609tokens/sec

Llama 3.1 Instruct 405B

Overall Capabilities

The capability radar provides a holistic view of the o3 vs Llama 3.1 Instruct 405B matchup. This chart illustrates each model's strengths and weaknesses at a glance, forming a cornerstone of our o3 vs Llama 3.1 Instruct 405B analysis.

This radar chart visually maps the core capabilities (reasoning, coding, math proxy, multimodal, long context) of `o3` vs `Llama 3.1 Instruct 405B`.

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 o3 vs Llama 3.1 Instruct 405B debate, o3 scores 90 against Llama 3.1 Instruct 405B's 10. This data-driven approach is essential for any serious o3 vs Llama 3.1 Instruct 405B comparison.

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

Speed & Latency

Speed is a crucial factor in the o3 vs Llama 3.1 Instruct 405B decision for interactive applications. The metrics below highlight the trade-offs you should weigh before shipping to production.

Time to First Token

o3300ms

Llama 3.1 Instruct 405B300ms

Tokens per Second

o3208.609

Llama 3.1 Instruct 405B24.823

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The Economics of o3 vs Llama 3.1 Instruct 405B

Power is only one part of the equation. This o3 vs Llama 3.1 Instruct 405B 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, o3 would cost $0.004, whereas Llama 3.1 Instruct 405B would cost $0.005. This practical calculation is vital for any developer considering the o3 vs Llama 3.1 Instruct 405B choice.

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Which Model Wins the o3 vs Llama 3.1 Instruct 405B Battle for You?

Choose o3 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 o3 vs Llama 3.1 Instruct 405B decision.

Choose Llama 3.1 Instruct 405B if...

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

Your budget is a primary consideration in the o3 vs Llama 3.1 Instruct 405B choice.

You are developing at scale where operational costs are critical.

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Your Questions about the o3 vs Llama 3.1 Instruct 405B Comparison

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Data source: https://artificialanalysis.ai/