+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
Llama 3.1 405B Instruct vs o3
Comprehensive side-by-side LLM comparison
o3 leads with 1.5% higher average benchmark score. o3 offers 44.0K more tokens in context window than Llama 3.1 405B Instruct. Llama 3.1 405B Instruct is $8.22 cheaper per million tokens. o3 supports multimodal inputs. Llama 3.1 405B Instruct is available on 8 providers. Both models have their strengths depending on your specific coding needs.
+
+
+
+
Meta
Llama 3.1 405B Instruct is a language model developed by Meta. It achieves strong performance with an average score of 79.2% across 18 benchmarks. It excels particularly in ARC-C (96.9%), GSM8k (96.8%), API-Bank (92.0%). It supports a 256K token context window for handling large documents. The model is available through 8 API providers. Released in 2024, it represents Meta's latest advancement in AI technology.
+
+
+
+
OpenAI
o3 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 67.5% across 22 benchmarks. It excels particularly in COLLIE (98.4%), AIME 2024 (91.6%), ARC-AGI (88.0%). It supports a 300K token context window for handling large documents. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents OpenAI's latest advancement in AI technology.
8 months newer
Llama 3.1 405B Instruct
Meta
2024-07-23
o3
OpenAI
2025-04-16
Pricing Comparison
Cost per million tokens (USD)
+
+
+
+
Llama 3.1 405B Instruct
Input:$0.89
Output:$0.89($8.22 cheaper)
+
+
+
+
o3
Input:$2.00
Output:$8.00
Performance Metrics
Context window and performance specifications
Average performance across 39 common benchmarks
+
+
+
+
Llama 3.1 405B Instruct
Average Score:36.5%
+
+
+
+
o3
Average Score:38.1%(+1.5%)
+
+
+
+
Knowledge Cutoff
Training data recency comparison
o3
2024-05-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
Llama 3.1 405B Instruct
8 providers
Bedrock
Throughput: 100 tok/s
Latency: 0.5ms
DeepInfra
Throughput: 27 tok/s
Latency: 0.5ms
Fireworks
Throughput: 78 tok/s
Latency: 0.5ms
Throughput: 42 tok/s
Latency: 0.4ms
Hyperbolic
+
+
+
+
Llama 3.1 405B Instruct
Avg Score:36.5%
Providers:8
+
+
+
+
o3
Avg Score:38.1%(+1.5%)
Providers:1