Llama 3.1 8B Instruct vs o3 Pro (Comparative Analysis)
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Comparative Analysis: Llama 3.1 8B Instruct vs. o3 Pro
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Overview
Llama 3.1 8B Instruct was released 10 months before o3 Pro.
 Llama 3.1 8B Instruct |  o3 Pro | |
|---|---|---|
Model Provider The organization behind this AI's development | Meta | OpenAI |
Input Context Window Maximum input tokens this model can process at once | 131.1K tokens | 200K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 131.1K tokens | 100K tokens |
Release Date When this model first became publicly available | July 23, 2024 2 years ago July 23rd, 2024 | June 10, 2025 1 year ago June 10th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | December 31, 2023 | June 30, 2024 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Llama 3.1 8B Instruct | o3 Pro | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📝Text📁File🖼️Image |
Reasoning Controls Defaults and configurable reasoning effort | Not reported | Optional |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Llama3 | GPT |
Key Features Advanced capabilities | ✓Function Calling✓Structured OutputReasoning ModeContent Moderation | ✓Function Calling✓Structured Output✓Reasoning Mode✓Content Moderation |
Open Source Model availability | Available on HuggingFace → | Proprietary |
Pricing
Llama 3.1 8B Instruct is significantly less expensive compared to o3 Pro for input tokens and significantly less expensive for output tokens.
| Llama 3.1 8B Instruct | o3 Pro | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.05 per million tokens | $20.00 per million tokens |
Output Token Cost Cost per million output tokens | $0.08 per million tokens | $80.00 per million tokens |
Web Search Cost Additional cost for each web search operation | Not specified | $0.01 per search |
Cache Read Cost Cost to reuse cached input tokens | $0.02 per million tokens | Not specified |
Benchmarks
Compare relevant benchmarks between Llama 3.1 8B Instruct and o3 Pro.
| Llama 3.1 8B Instruct | o3 Pro | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | 7.6 (Artificial Analysis index; higher is better) | Benchmark not available. |
Coding Index Programming performance across independent evaluations | 5.4 (Artificial Analysis index; higher is better) | Benchmark not available. |
Agentic Index Ability to complete multi-step agentic tasks | 0.5 (Artificial Analysis index; higher is better) | Benchmark not available. |
At a Glance
Quick overview of what makes Llama 3.1 8B Instruct and o3 Pro unique.
Llama 3.1 8B Instruct by Meta can use external tools and APIs, generates structured data. It can handle standard conversations with its 131.1K token context window. Very affordable at $0.05/M input and $0.08/M output tokens. Released July 23rd, 2024.o3 Pro by OpenAI understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 200K token context window. Premium pricing at $20.00/M input and $80.00/M output tokens. Includes built-in content moderation for safer outputs. Released June 10th, 2025.Explore More Comparisons
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