Comprehensive side-by-side LLM comparison
Phi 4 Reasoning leads with 21.5% higher average benchmark score. Llama 3.1 8B Instruct is available on 9 providers. Overall, Phi 4 Reasoning is the stronger choice for coding tasks.
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.
Microsoft
Phi-4 Reasoning was developed to incorporate extended analytical thinking into the Phi-4 architecture, designed to spend more time on complex problem-solving. Built to combine compact model efficiency with reasoning depth, it represents Microsoft's exploration of thoughtful small models.
9 months newer

Llama 3.1 8B Instruct
Meta
2024-07-23

Phi 4 Reasoning
Microsoft
2025-04-30
Context window and performance specifications
Average performance across 3 common benchmarks

Llama 3.1 8B Instruct

Phi 4 Reasoning
Llama 3.1 8B Instruct
2023-12-31
Phi 4 Reasoning
2025-03-01
Available providers and their performance metrics

Llama 3.1 8B Instruct
Bedrock
Cerebras
DeepInfra
Fireworks
Groq

Llama 3.1 8B Instruct

Phi 4 Reasoning

Llama 3.1 8B Instruct

Phi 4 Reasoning
Hyperbolic
Lambda
Sambanova
Together

Phi 4 Reasoning