PostTrainBench
Category
Agentic Coding
Score type
percent
Scale
100%
higher is better
Models tested
10
What is PostTrainBench?
PostTrainBench is a benchmark for how well a model works as an autonomous coding agent. It was built to compare language models on a clearly defined set of tasks under the same grading rules, so scores are directly comparable between models.
What does it test?
PostTrainBench measures how well a model works as an autonomous coding agent. In detail, it checks:
- fixing real, open bugs from real software repositories
- planning multi-step changes, running commands and editing files by itself
- passing the project's test suite after its changes
- handling whole repositories, not just small isolated code snippets
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 PostTrainBench benchmark?
PostTrainBench is a benchmark for how well a model works as an autonomous coding agent. It was built to compare language models on a clearly defined set of tasks under the same grading rules, so scores are directly comparable between models.
What does PostTrainBench test?
PostTrainBench mainly measures how well a model works as an autonomous coding agent. Concretely, it checks: fixing real, open bugs from real software repositories; planning multi-step changes, running commands and editing files by itself; passing the project's test suite after its changes.
How is the PostTrainBench 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 PostTrainBench data and scores?
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/posttrainbench/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.
Model scores 10 models tested
| # | Model | Score | Date | Source | Verified |
|---|---|---|---|---|---|
| 1 |
GLM-5.3
Zhipu AI
|
39.8%
|
28.08.2026 | Report | Verified |
| 2 |
MiniMax-M3.1-Flash
MiniMaxAI
|
39.3%
|
19.10.2026 | Report | Verified |
| 3 |
MiniMax-M3
MiniMaxAI
|
37.1%
|
11.06.2026 | MiniMax-M3 model card benchmark table | Unverified |
| 4 |
Kimi K3
Moonshot AI
|
36.6%
|
18.08.2026 | Report | Verified |
| 5 |
Kimi K3.1 Pro
Moonshot AI
|
36.5%
|
07.11.2026 | Report | Verified |
| 6 |
Hy4 preview
Tencent
|
35.6%
|
28.08.2026 | Tencent Hy4 preview model card benchmark appendix (https://huggingface.co/tencent/Hy4-preview#benchmark-appendix) | Verified |
| 7 |
GLM-5.2
Zhipu AI
|
34.3%
|
17.06.2026 | Report | Verified |
| 8 |
DeepSeek-V4.1-Flash-1017
DeepSeek
|
30.5%
|
07.11.2026 | Kimi K3.1 Pro model card comparison column (max effort) https://huggingface.co/moonshotai/Kimi-K3.1-Pro | Unverified |
| 9 |
DeepSeek-V4.1-Flash
DeepSeek
|
30.5%
|
19.10.2026 | Report | Unverified |
| 10 |
Hy3
Tencent
|
14.5%
|
28.08.2026 | Tencent Hy4 preview model card benchmark appendix (https://huggingface.co/tencent/Hy4-preview#benchmark-appendix) | Verified |