Llama 3.1 405B vs OpenAI o3 Mini
Side-by-side comparison of pricing, capabilities, benchmarks, and use case fit.
M
Llama 3.1 405B
Meta
O
OpenAI o3 Mini
OpenAI
Capability radar
Normalized coding, reasoning, writing, vision, context, and value
Llama 3.1 405BOpenAI o3 Mini
| Metric | Llama 3.1 405B | OpenAI o3 Mini |
|---|---|---|
| Input Price / 1M | $0.35 | $1.10 |
| Output Price / 1M | $0.70 | $4.40 |
| Combined Price / 1M | $1.05 | $5.50 |
| Context Window | 128,000 | 200,000 |
| Coding Score | 85 | 90 |
| Reasoning Score | 86 | 91 |
| Vision Score | 40 | 35 |
| Audio | No | No |
| Streaming | Yes | Yes |
| Function Calling | Yes | Yes |
| Latency Tier | slow | reasoning |
| Release Date | 7/23/2024 | 1/31/2025 |
Llama 3.1 405B — Strengths & Weaknesses
Strengths
- Open 405B weights
- Strong reasoning
Weaknesses
- High inference cost
- No multimodal
OpenAI o3 Mini — Strengths & Weaknesses
Strengths
- Affordable reasoning
- Strong math/coding
Weaknesses
- No multimodal
- Higher latency than GPT-4o
Use Case Verdicts
Enterprise Use
OpenAI o3 Mini combines strong reasoning, tooling, and context for enterprise workloads.
Agent Workflows
OpenAI o3 Mini is better suited for agentic workflows with tool use and coding capability.