by IBM Research

IBM: Granite 4.1 8B.

text open weights edge 8B params 131K ctx
Cheapest input
$0.05/M
on OpenRouter
Cheapest output
$0.1/M
on OpenRouter
Fastest
87 tok/s
on OpenRouter
Smallest GPU
1× Nvidia P102-100

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...

Smallest GPU to run it See all quantisations →

1× Nvidia P102-100.

Most-aggressive quantisation we have a working recommendation for. Lower precision = less VRAM = cheaper hardware, at a small accuracy cost.

Where to use it

Cheapest hosted endpoints.

Provider Access $/M in $/M out
OpenRouter api aggregator $0.05 $0.1 Launch ↗
Performance

Speed across providers.

Tokens/sec and time-to-first-token measured against the same prompt template on each provider's API.

Provider Tokens/sec TTFT Total
OpenRouter 87.0 445 ms 1288 ms
FAQ

Frequently asked.

How do I run IBM: Granite 4.1 8B?
IBM: Granite 4.1 8B is open-weight, so you can self-host on rented GPUs. See the Run It Yourself tab for GPU configurations + cost estimates, or use one of the hosted inference providers listed on this page.
Where can I access IBM: Granite 4.1 8B?
IBM: Granite 4.1 8B is available via OpenRouter. Each access option lists its own pricing (per million tokens or hourly hosting).
How much does it cost to run IBM: Granite 4.1 8B?
API pricing starts at $0.05/M input tokens and $0.1/M output tokens. Self-hosting cost depends on the GPU you rent — see the Run It Yourself tab.
Is IBM: Granite 4.1 8B open-source or proprietary?
IBM: Granite 4.1 8B is open-weight under the license. You can download and self-host it.