Granite 4.2 8B
Granite 4.2 8B is a dense text model post-trained from Granite 4.1 8B Base. It supports full thinking, direct answers and a low-effort reasoning mode. IBM released it on 25 August 2026.
Model design and training
The training pipeline combines supervised fine-tuning, alignment and reinforcement learning. It uses public instruction data, synthetic tasks, agent traces and human-authored examples. The chat template controls thinking behavior.Granite 4.2 8B model card
Practical use
Practical guidance. The 8B release is a useful candidate when a small model misses multi-step instructions. Compare all three reasoning modes on the same workload. Keep the input documents fixed so changes in retrieval do not hide changes in model behavior. Set an output budget that leaves room for the final answer.
Context and serving limits
The card advertises a 512K extension, but its configuration and serving examples use 131,072 tokens. Treat extended context as a separate deployment setting to verify. The 512K claim is not used here as the default endpoint limit.Granite 4.2 8B model card
Specifications & access
| Detail | Value and conditions |
|---|---|
| Launch date | |
| Access | Downloadable |
| Model identifiers | ibm-granite/granite-4.2-8b |
| Context window | 131,072 tokens Default published configuration and architecture table. IBM also describes extension to 512K. Granite 4.2 8B model card |
| License | Apache 2.0Granite 4.2 8B model card |
| Parameters | 8BGranite 4.2 8B model card |
| Supported languages | 12 languages, including English, German, French, Chinese and Japanese.Granite 4.2 8B model card |
Related models
- Granite 4.1 8B
IBM · Granite 4.1
An instruction-tuned 8B text model for retrieval-based answers, extraction, coding and tool use.
Launch date API · Downloadable · Provider product - Granite 4.1 8B Base
IBM · Granite 4.1
A pretrained 8B dense decoder for text generation, further training and fill-in-the-middle code completion.
Launch date Downloadable