IBM: 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...

Source-linked Open weights

API data Report

Input modalitiesT

Output modalitiesT

Input price$0.05/1M tokens

Output price$0.1/1M tokens

Context window131.072K

Max output131.072K

Overview

Capabilities and specifications

? Reasoning Unknown

? Tool calling Unknown

? Structured output Unknown

? Attachments Unknown

× Vision input No

✓ Open weights Yes

Creator: IBM
Model family: Not documented
Knowledge cutoff: Not documented
License: Not documented
Release date: Not documented
Model ID: ibm-granite/granite-4.1-8b

Inference availability

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Serving quality

Performance and reliability

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Throughput Not reported

Generation speed; higher is faster.

Latency / TTFT Not reported

Time until the first output token arrives.

Uptime Not reported

Successful requests over a measured period.

Performance varies by inference provider, region, and load. Provider-level measurements appear only when a source reports them.

Published evaluations

Benchmarks

Raw results remain attached to their original source and version.

Benchmark registry

Coding Index - Unversioned - indexTop 8 reported models

Claude Opus 5

78.0

GPT-5.6 Sol

77.4

GPT-5.6 Terra

76.7

Anthropic: Claude Fable 5 (batch)

76.5

Claude Fable 5

76.5

Kimi K3

76.2

OpenAI: GPT-5.5 (batch)

74.9

IBM: Granite 4.1 8B

9.5

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Public API

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API documentation

Endpoint

GET https://www.modelbench.lol/api/v1/models/ibm-granite/granite-4.1-8b

curl

curl "https://www.modelbench.lol/api/v1/models/ibm-granite/granite-4.1-8b"