IBM Granite 4.2 30B (Reasoning)
by IBM
IBM Granite 4.2 30B (Reasoning) is a reasoning model from IBM, released on August 25, 2026. It has a 131K-token context window and can generate up to 131K output tokens. API pricing is $0.16 per 1M input tokens and $0.65 per 1M output tokens. It ranks #109 of 220 models by Intelligence Score with a score of 23.7.
IBM Granite 4.2 30B is the flagship dense decoder-only reasoning LLM in the Granite 4.2 family. It supports native think, non-think, and low-effort modes, tool calling, and a 128K native context window with extension to 512K. The 8B and 30B sizes received additional agentic reinforcement learning for multi-step tool use. Open weights on Hugging Face under Apache 2.0. Text-only (not multimodal).
Key specs
| Provider | IBM |
|---|---|
| Release date | 2026-08-25 |
| License | open source |
| Context window | 131K tokens |
| Max output | 131K tokens |
| Input price | $0.16 / 1M tokens |
| Output price | $0.65 / 1M tokens |
| Intelligence Score | 23.7 |
| Coding index | 8.8 |
Quick answers
What is the context window of IBM Granite 4.2 30B (Reasoning)?
IBM Granite 4.2 30B (Reasoning) has a context window of 131K tokens, with a maximum output of 131K tokens per response.
How much does IBM Granite 4.2 30B (Reasoning) cost?
IBM Granite 4.2 30B (Reasoning) costs $0.16 per 1M input tokens and $0.65 per 1M output tokens through the API.
Is IBM Granite 4.2 30B (Reasoning) open source?
Yes. IBM Granite 4.2 30B (Reasoning) is an open model released under the open source license.
When was IBM Granite 4.2 30B (Reasoning) released?
IBM released IBM Granite 4.2 30B (Reasoning) on August 25, 2026.
How does IBM Granite 4.2 30B (Reasoning) compare to Claude Opus 5.5 (Reasoning)?
IBM Granite 4.2 30B (Reasoning) scores 23.7 on the Intelligence Score versus 60.5 for Claude Opus 5.5 (Reasoning), the current #1. Input pricing is $0.16 vs $4 per 1M tokens.
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