Which Open Source LLM is Best for Code Generation?

The field of code generation has seen significant advancements in recent years, with open-source models increasingly challenging their closed-source counterparts. These models offer several advantages, including transparency, customizability, and the potential for community-driven improvements. As we explore the best open-source LLMs for code generation, we'll consider factors such as performance

1000+ Pre-built AI Apps for Any Use Case

Which Open Source LLM is Best for Code Generation?

Start for free
Contents

The field of code generation has seen significant advancements in recent years, with open-source models increasingly challenging their closed-source counterparts. These models offer several advantages, including transparency, customizability, and the potential for community-driven improvements. As we explore the best open-source LLMs for code generation, we'll consider factors such as performance on benchmarks, efficiency in editing large codebases, and overall capabilities.

💡
Interested in the latest trend in AI?

Then, You cannot miss out Anakin AI!

Anakin AI is an all-in-one platform for all your workflow automation, create powerful AI App with an easy-to-use No Code App Builder, with Llama 3, Claude Sonnet 3.5, GPT-4, Uncensored LLMs, Stable Diffusion...

Build Your Dream AI App within minutes, not weeks with Anakin AI!

Do You Really Need an Open Source Local Coding LLM?

While open-source LLMs have made significant strides in code generation, several challenges remain:

Consistency and Reliability: Smaller models may produce inconsistent results or struggle with complex coding tasks.

Keeping Up with Rapid Advancements: The field of AI is evolving rapidly, and maintaining open-source models at the cutting edge requires continuous community effort.

Integration and Deployment: Implementing these models in existing development workflows can be challenging, especially for organizations with established processes.

Evaluating Open Source LLMs for Code Generation

So here's the benchmark data that we need to discuss about:

  1. DeepSeek Coder V2 0724: 73%
  2. Llama 3.1 405B Instruct: 66%
  3. Mistral Large 2 (2407): 60%
  4. Llama 3.1 70B Instruct: 59%
  5. Llama 3.1 8B Instruct: 38%

DeepSeek Coder V2 0724 clearly leads the pack, with performance close to that of top proprietary models. The Llama 3.1 family shows a clear correlation between model size and performance, while Mistral Large 2 sits comfortably in the middle range.

Let's break down the details:

DeepSeek Coder V2 0724

DeepSeek Coder V2: Best LLM for Coding & Math
DeepSeek Coder V2 is a groundbreaking open-source AI model that excels in coding and mathematical reasoning, offering uncensored capabilities, impressive benchmark performance, and versatile usage options for developers and researchers.

DeepSeek Coder V2 0724 has emerged as a standout performer in the realm of code generation and editing. Released in July 2024, this model has shown impressive capabilities that rival even some of the most advanced proprietary models.

Key Features:

  • Efficient code editing with SEARCH/REPLACE functionality
  • Ability to handle large files
  • High performance on code editing benchmarks

Benchmark Performance:
DeepSeek Coder V2 0724 achieved a remarkable 73% score on the aider code editing leaderboard, placing it second only to Claude 3.5 Sonnet (77%). This performance is particularly noteworthy given that DeepSeek Coder is estimated to be 20-50 times less expensive to run than Sonnet.

DeepSeek Coder V2 0724 stands out for its ability to efficiently edit large codebases, a crucial feature for real-world applications. The larger Llama 3.1 models show some capability in this area, while smaller models and Mistral Large 2 are more limited.


Llama 3.1 405B, Llama 3.1 7B and Llama 8B

Llama-3.1-405B-Instruct | Free AI tool | Anakin.ai
Llama-3.1-405B-Instruct: Unleash the power of Meta’s most advanced language model for state-of-the-art natural language processing and generation tasks.

Meta's Llama 3.1 family of models, released in mid-2024, has shown strong performance across various evaluations, including code generation tasks.

Llama 3.1 405B Instruct:

  • Flagship model of the Llama 3.1 family
  • Capable of using SEARCH/REPLACE for efficient code editing
  • Benchmark score: 66% on the aider code editing leaderboard (64% when using "diff" editing format)

Llama 3.1 70B Instruct:

  • Mid-sized model in the family
  • Competitive with GPT-3.5 in performance
  • Benchmark score: 59% on the aider code editing leaderboard

Llama 3.1 8B Instruct:

  • Smallest model in the family
  • Limited capabilities compared to larger variants
  • Benchmark score: 38% on the aider code editing leaderboard

Mistral Large 2 (2407)

Mistral Large | Online Chatbot | Free AI tool | Anakin.ai
Want to test out the latest Mistral Large model? Use this online chatbot to test out now!

Mistral AI's latest offering, Mistral Large 2 (2407), has also made its mark in the code generation space.

Key Features:

  • Competitive performance with some proprietary models
  • Suitable for smaller code editing tasks

Benchmark Performance:
Mistral Large 2 (2407) scored 60% on the aider code editing benchmark, placing it just ahead of the best GPT-3.5 model.


Conclusion

So, what we can conclude from here?

  • Best Overall Open Source LLM for Coding: DeepSeek Coder V2 0724 currently stands out as the top performer, offering capabilities that rival proprietary models at a fraction of the cost. The Llama 3.1 family provides a range of options suitable for different scales of operation, while Mistral Large 2 offers a solid middle-ground solution.
  • Best Local LLM for Large-Scale Code Refactoring: DeepSeek Coder V2 0724 and Llama 3.1 405B Instruct are well-suited for projects involving extensive code modifications across large codebases.
  • Best Local LLM for Rapid Prototyping: Smaller models like Llama 3.1 70B Instruct or Mistral Large 2 can be effective for quick code generation in smaller projects or for generating code snippets.
  • Best Local LLM for Specialized Domain Coding: Open-source models can be fine-tuned for specific programming languages or domain-specific coding tasks, making them valuable for niche applications.

Cost-Effectiveness

While exact pricing can vary, open-source models generally offer significant cost savings compared to proprietary alternatives. DeepSeek Coder V2 0724, in particular, is noted for its excellent performance-to-cost ratio, estimated to be 20-50 times less expensive than top-performing proprietary models with similar capabilities.

Customizability and Fine-Tuning

Open-source models offer the advantage of customizability, allowing organizations to fine-tune models for specific use cases or domains. This flexibility can be particularly valuable in specialized coding environments or for companies with unique code generation needs.


The choice of the "best" open-source LLM for code generation ultimately depends on specific needs, including the scale of projects, available computational resources, and particular use cases. Organizations and developers should consider these factors carefully when selecting a model.

As open-source LLMs continue to advance, they are likely to play an increasingly important role in software development, potentially democratizing access to powerful code generation tools and reshaping the landscape of programming productivity.

💡
Interested in the latest trend in AI?

Then, You cannot miss out Anakin AI!

Anakin AI is an all-in-one platform for all your workflow automation, create powerful AI App with an easy-to-use No Code App Builder, with Llama 3, Claude Sonnet 3.5, GPT-4, Uncensored LLMs, Stable Diffusion...

Build Your Dream AI App within minutes, not weeks with Anakin AI!