Last refreshed 2026-05-11. Next refresh: weekly.
Why use OLMo 1B on OpenRouter?
OpenRouter offers OLMo 1B with pay-as-you-go pricing at $15.00/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Setup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: openai/o1openai/o1Request example
openai/o1.Gotchas
- Use provider model ID "openai/o1", not the LLMReference slug "olmo-1b".
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $15.00 |
| Output tokens | $60.00 |
Capabilities
About OLMo 1B
AMD OLMo 1B is a fully open-source large language model with 1 billion parameters, designed for advanced reasoning, instruction-following, and chat capabilities. Utilizing a decoder-only transformer architecture, it is trained on a 1.3 trillion-token subset of the Dolma v1.7 dataset, achieving a remarkable training throughput of 12,200 tokens per second per GPU. AMD leveraged its Instinct MI250 GPUs across 16 nodes to optimize performance, followed by a sophisticated three-stage training process of pre-training, supervised fine-tuning, and direct preference optimization. The model is open for public access, including its code, weights, and training methodologies, contributing significantly to further AI research and development while also being capable of running inferences on AMD Ryzen AI PCs with NPUs. It stands out for superior performance compared to other similarly sized open-source models in various benchmarks.
FAQ
What does OLMo 1B cost on OpenRouter?
On OpenRouter, OLMo 1B costs $15 per 1M input tokens and $60 per 1M output tokens.
What is the context window for OLMo 1B on OpenRouter?
OLMo 1B supports a 200,000 token context window on OpenRouter.
What API model ID do I use for OLMo 1B on OpenRouter?
Use the model ID openai/o1 when calling OpenRouter's API.
Who created OLMo 1B?
OLMo 1B was created by Allen Institute for Artificial Intelligence (AI2) as part of the OLMo model family.
Is OLMo 1B open source?
OLMo 1B's open source status is unknown in the seed data.