+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
GPT-4.5 vs Llama 3.1 8B Instruct
Comprehensive side-by-side LLM comparison
GPT-4.5 leads with 20.9% higher average benchmark score. Llama 3.1 8B Instruct offers 130.0K more tokens in context window than GPT-4.5. Llama 3.1 8B Instruct is $224.94 cheaper per million tokens. GPT-4.5 supports multimodal inputs. Llama 3.1 8B Instruct is available on 9 providers. Overall, GPT-4.5 is the stronger choice for coding tasks.
+
+
+
+
OpenAI
GPT-4.5 was developed as an intermediate advancement between GPT-4 and GPT-5, designed to incorporate incremental improvements in reasoning, factuality, and instruction-following. Built to bridge generational capabilities while maintaining compatibility with existing applications, it represents a refinement of the GPT-4 architecture with enhanced performance characteristics.
+
+
+
+
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.
7 months newer
Llama 3.1 8B Instruct
Meta
2024-07-23
GPT-4.5
OpenAI
2025-02-27
+
+
+
+
+
+
+
+
+
+
+
+
Pricing Comparison
Cost per million tokens (USD)
+
+
+
+
GPT-4.5
Input:$75.00
Output:$150.00
+
+
+
+
Llama 3.1 8B Instruct
Input:$0.03
Output:$0.03($224.94 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 4 common benchmarks
+
+
+
+
GPT-4.5
Average Score:84.1%(+20.9%)
+
+
+
+
Llama 3.1 8B Instruct
Average Score:63.2%
+
+
+
+
Knowledge Cutoff
Training data recency comparison
Llama 3.1 8B Instruct
2023-12-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
GPT-4.5
1 providers
OpenAI
Throughput: 50 tok/s
Latency: 20ms
+
+
+
+
Llama 3.1 8B Instruct
+
+
+
+
GPT-4.5
Avg Score:84.1%(+20.9%)
Providers:1
+
+
+
+
Llama 3.1 8B Instruct
Avg Score:63.2%
Providers:9