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Llama 3.1 8B Instruct vs o3
Comprehensive side-by-side LLM comparison
o3 leads with 52.9% higher average benchmark score. o3 offers 37.9K more tokens in context window than Llama 3.1 8B Instruct. Llama 3.1 8B Instruct is $9.94 cheaper per million tokens. o3 supports multimodal inputs. Llama 3.1 8B Instruct is available on 9 providers. Overall, o3 is the stronger choice for coding tasks.
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Meta
Llama 3.1 8B was developed as an efficient open-source model, designed to bring capable instruction-following to applications with limited computational resources. Built with 8 billion parameters, it provides a lightweight option for developers seeking reliable performance without the overhead of larger models.
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OpenAI
o3 represents the next generation in OpenAI's reasoning model series, developed to advance the capabilities of deliberate, step-by-step problem solving. Built to handle increasingly complex challenges across mathematics, science, and coding, it continues the evolution of reasoning-focused AI with improved analytical depth and accuracy.
8 months newer
Llama 3.1 8B Instruct
Meta
2024-07-23
o3
OpenAI
2025-04-16
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Pricing Comparison
Cost per million tokens (USD)
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Llama 3.1 8B Instruct
Input:$0.03
Output:$0.03($9.94 cheaper)
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o3
Input:$2.00
Output:$8.00
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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Llama 3.1 8B Instruct
Average Score:30.4%
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o3
Average Score:83.3%(+52.9%)
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Knowledge Cutoff
Training data recency comparison
Llama 3.1 8B Instruct
2023-12-31
o3
2024-05-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Llama 3.1 8B Instruct
9 providers
Bedrock
Throughput: 100 tok/s
Latency: 0.5ms
Cerebras
Throughput: 2047 tok/s
Latency: 0.2ms
DeepInfra
Throughput: 118 tok/s
Latency: 0.5ms
Fireworks
Throughput: 292 tok/s
Latency: 0.5ms
Groq
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Llama 3.1 8B Instruct
Avg Score:30.4%
Providers:9
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o3
Avg Score:83.3%(+52.9%)
Providers:1