# Granite 4.0 Micro

> Granite 4.0 Micro is an open-weight language model from IBM, released on 20 Oct 2025. It accepts text and generates text, with a 131K-token context window and up to 118K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $0.02 per million input tokens and $0.11 per million output tokens (OpenRouter), across 1 provider we track.

Source page: https://www.aimodel.directory/models/granite-4-0-h-micro
Last verified: 4 Oct 2026

## Specifications

- **Developer:** IBM
- **Release date:** 20 Oct 2025 (source: OpenRouter, https://openrouter.ai/ibm-granite/granite-4.0-h-micro)
- **Status:** Generally available
- **Weights:** Open weights (source: Hugging Face, https://huggingface.co/ibm-granite/granite-4.0-h-micro)
- **License:** apache-2.0 (source: Hugging Face, https://huggingface.co/ibm-granite/granite-4.0-h-micro)
- **Parameters:** 3.2B (source: Hugging Face, https://huggingface.co/ibm-granite/granite-4.0-h-micro)
- **Context window:** 131K (131,000 tokens) (source: OpenRouter, https://openrouter.ai/ibm-granite/granite-4.0-h-micro)
- **Max output:** 118K tokens (source: OpenRouter, https://openrouter.ai/ibm-granite/granite-4.0-h-micro)
- **Input:** Text (source: OpenRouter, https://openrouter.ai/ibm-granite/granite-4.0-h-micro)
- **Output:** Text (source: OpenRouter, https://openrouter.ai/ibm-granite/granite-4.0-h-micro)
- **Reasoning mode:** No (source: OpenRouter, https://openrouter.ai/ibm-granite/granite-4.0-h-micro)
- **Tool calling:** No (source: OpenRouter, https://openrouter.ai/ibm-granite/granite-4.0-h-micro)
- **Structured output:** No (source: OpenRouter, https://openrouter.ai/ibm-granite/granite-4.0-h-micro)
- **Hugging Face:** ibm-granite/granite-4.0-h-micro (source: Hugging Face, https://huggingface.co/ibm-granite/granite-4.0-h-micro)

## API pricing (USD per 1M tokens)

| Provider | Input | Output | Cached input | Context |
|---|---|---|---|---|
| OpenRouter | $0.02 | $0.11 | – | 131K |

## FAQ

### What is the context window of Granite 4.0 Micro?

Granite 4.0 Micro has a context window of 131,000 tokens (131K) and can generate up to 117,900 tokens in a single response, according to OpenRouter.

### How much does the Granite 4.0 Micro API cost?

Granite 4.0 Micro is listed from $0.02 per million input tokens and $0.11 per million output tokens (OpenRouter). Prices last verified 4 Oct 2026.

### Is Granite 4.0 Micro open source?

Granite 4.0 Micro is an open-weight model: its weights are published on Hugging Face as ibm-granite/granite-4.0-h-micro under the apache-2.0 license. Check the license terms before commercial use.

### When was Granite 4.0 Micro released?

IBM released Granite 4.0 Micro on 20 Oct 2025, according to OpenRouter.

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Data licensed CC BY 4.0. Cite as: AI Model Directory, "Granite 4.0 Micro", https://www.aimodel.directory/models/granite-4-0-h-micro