Granite 4.1 8B
Granite 4.1 8B is a dense, decoder-only 8-billion-parameter language model from IBM, part of the Granite 4.1 family. It supports a 131K-token context window and is designed for enterprise tasks including tool calling, retrieval-augmented generation (RAG), code generation with fill-in-the-middle support, text summarization, classification, and extraction. The model handles 12 languages (English, German, Spanish, French, Japanese, Portuguese, Arabic, Czech, Italian, Korean, Dutch, and Chinese) and implements OpenAI-compatible tool calling. Released under the Apache 2.0 license.
ibm-granite/granite-4.1-8b
- Context
- 131k tokens
- Completion cap
- 131,072
- Tools
- Yes
- JSON
- Yes
- Released
- 2026-04-30
Call it from Geek Hub
Same OpenAI SDK. Change the base URL and the model id.
curl https://api.geekhub.mx/v1/chat/completions \
-H "Authorization: Bearer $GEEKHUB_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "ibm-granite/granite-4.1-8b",
"messages": [{"role": "user", "content": "Hola"}]
}'Frequently asked questions
- What is Granite 4.1 8B?
- Granite 4.1 8B is a dense, decoder-only 8-billion-parameter language model from IBM, part of the Granite 4.1 family. It supports a 131K-token context window and is designed for enterprise tasks including tool calling, retrieval-augmented generation (RAG), code generation with fill-in-the-middle support, text summarization, classification, and extraction. The model handles 12 languages (English, German, Spanish, French, Japanese, Portuguese, Arabic, Czech, Italian, Korean, Dutch, and Chinese) and implements OpenAI-compatible tool calling. Released under the Apache 2.0 license. Granite 4.1 8B runs on the Geek Hub API (OpenAI-compatible). Model id: ibm-granite/granite-4.1-8b.
- Is Granite 4.1 8B free?
- No. Input is $0.0545 per 1M tokens and output is $0.109 per 1M tokens on Geek Hub (markup included).
- What is the context length of Granite 4.1 8B?
- Granite 4.1 8B has a 131k tokens context window. It supports up to 131,072 completion tokens.
- Does Granite 4.1 8B support tool calling and structured outputs?
- Granite 4.1 8B accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.
- When was Granite 4.1 8B released?
- Granite 4.1 8B was released on 2026-04-30.