Granite 4.2 8B

SyncDev model directory · Profile updated Oct 13, 2026

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Granite 4.2 8B is IBM’s Apache-licensed dense text model with reasoning controls, tool calling and long-context support.

Key specifications

Specification score
41.8
Context window
131.07K
License
Apache 2.0
Parameters
8B

The specification score summarizes recorded features and limits. It is not a benchmark result.

Inputs and outputs

Recorded modality support shows what this model can accept and produce. An undocumented modality is shown as unknown rather than assumed to be unsupported.

Accepts

  • Text input

Produces

  • Text output

Capabilities

ReasoningFunction callingStreamingOpen weights

What is Granite 4.2 8B?

Granite 4.2 8B is IBM’s Apache-licensed dense text model with reasoning controls, tool calling and long-context support.

Choosing this size

This 8-billion-parameter checkpoint is a candidate for an assistant that combines document work with tools and moderate local resource use. IBM documents native 128K context and extension to 512K. The card includes twelve supported evaluation languages and separate settings for thinking behaviour. The directory records the native context rather than treating extended serving configuration as the default.

Work to evaluate

Test a multi-document question, a tool-assisted lookup and an issue that requires a small code change. Define the expected result first, then assess factual support, valid tool arguments and recovery from missing or contradictory information. Compare the same prompts across Granite sizes before paying for a larger deployment.

Conversation and serving settings

The documented chat template strips earlier thinking by default to conserve context, with a setting to preserve it when needed. Keep that choice consistent in a tool loop and ensure the server exposes the intended reasoning and tool parsers. Measure memory and latency at the concurrency your application needs. A smaller parameter count can make deployment easier, but it does not establish a measured response speed on your hardware.

The Apache-licensed weights can be deployed locally. Hosted pricing and rate limits belong to the selected service and remain separate from the checkpoint’s download and licence information.

Sources

Publisher documentation

How to evaluate Granite 4.2 8B

Compare the model on the work you need to complete.

Tasks and inputs

Granite 4.2 8B is listed for Text generation, Coding & Code Generation. It accepts text and produces text. Use the publisher’s input format and preprocessing for your chosen deployment.

Capacity and cost

Documented limits: 131.07K context. Measure a completed task using the prompts, documents and tools your application will use. Include reasoning and retries in the result.

Choosing a deployment

The weights are downloadable under Apache 2.0. Check runtime support and size the complete model and working context for your expected concurrency.

These records share a directory category. Check the source card, output type and deployment requirements before treating a model as a replacement.

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