Aider Polyglot
Aider Polyglot - coding benchmark evaluating model's ability to edit code across multiple programming languages.
Category
Agentic Coding
Score type
percent
Scale
100%
higher is better
Models tested
2
What is Aider Polyglot?
The Aider Polyglot benchmark measures how well a model performs as the 'brain' of the Aider coding assistant. The model gets 225 exercism-style coding exercises in different languages and must produce code that passes the tests. It shows how good a model is for real code-editing workflows.
What does it test?
Aider Polyglot measures how well a model works as an autonomous coding agent. In detail, it checks:
- precise code edits that satisfy unit tests
- several programming languages, not only Python
- following the format the coding tool expects
- correctness under a large number of automated tests
How to read the score
The score is accuracy: the percentage of tasks answered or solved correctly. 100% means every task was solved perfectly; higher is better.
Frequently asked questions
What is the Aider Polyglot benchmark?
The Aider Polyglot benchmark measures how well a model performs as the 'brain' of the Aider coding assistant. The model gets 225 exercism-style coding exercises in different languages and must produce code that passes the tests. It shows how good a model is for real code-editing workflows.
What does Aider Polyglot test?
Aider Polyglot mainly measures how well a model works as an autonomous coding agent. Concretely, it checks: precise code edits that satisfy unit tests; several programming languages, not only Python; following the format the coding tool expects.
How is the Aider Polyglot score calculated?
The score is accuracy: the percentage of tasks answered or solved correctly. 100% means every task was solved perfectly; higher is better. The declared maximum score of this benchmark is 100.0.
Where do I get Aider Polyglot data and scores?
The official source is https://github.com/Aider-AI/aider. The official benchmark page/reference is linked on this page. Every score on Open LLM Radar is also available as open data: download the scores JSON (http://open-llm-radar-api:8000/api/v1/benchmarks/aider-polyglot/scores) or pull it directly from the Open LLM Radar API with any HTTP client.
Benchmark data & downloads
Where to get, inspect and reuse the data behind this benchmark.
Official benchmark page / paper
The benchmark maintainer's website, paper or leaderboard
Benchmark dataset
The question/task data itself — download and evaluate locally
Benchmark metadata (JSON)
This page's benchmark record from the Open LLM Radar API
All model scores (JSON download)
Full score table as JSON; paginate with limit/offset params
Open LLM Radar API docs
Swagger UI to explore and reuse all radar API endpoints
Model scores 2 models tested
| # | Model | Score | Date | Source | Verified |
|---|---|---|---|---|---|
| 1 |
GPT-OSS-120B
OpenAI
|
44.4%
|
08.08.2025 | Report | Verified |
| 2 |
GPT-OSS-20B
OpenAI
|
34.2%
|
05.08.2025 | Report | Verified |