CodeGen

CodeGen provides open-source models for program synthesis and code generation.

github.com/salesforce/CodeGen
CodeGen homepage screenshot

About CodeGen

CodeGen is a family of open-source models for program synthesis from Salesforce AI Research. The models are available on the Hugging Face Hub and load with Transformers AutoTokenizer and AutoModelForCausalLM. The release is for research purposes only, and users are advised to evaluate accuracy, safety and fairness before deployment.

Pricing is not clearly stated.

Key features

  • CodeGen1 and CodeGen2 models in 350M, 1B, 3B, 7B and 16B sizes
  • CodeGen2.0 release with strong infill sampling capability
  • CodeGen2.5 release outperforming 16B parameter models with only 7B
  • Jaxformer library for data pre-processing, training and fine-tuning

CodeGen at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Details verified
Oct 22, 2026 · Official source
Open source
Yes · Source code
Language
English
Last checked
Oct 5, 2026 · Online when checked
Listed
Oct 5, 2026

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