Beam from Reflection AI , previously available in stealth as stealth/cat-jam , is now available on AI Gateway . Beam is free to use for a limited time during the launch period when serviced by Reflection AI.

Beam is an low latency US open-weight reasoning model for coding and agentic tasks, with weights released under Apache 2.0 . Beam supports tool calling and structured outputs , with a 1M-token context window for code, documents, and conversation history. Reasoning effort is adjustable. Beam is designed for speed, activating only 23B of its 501B parameters per token and avoiding tokens a task doesn't need, so it tends to reach answers sooner than larger open models.

There are 2 ways to access Beam for free:

Using the standard model name ( reflection/beam with provider reflection ). When the free period ends, the model slug will automatically transfer over to pricing with no downtime.

Using the -free suffix to the standard name ( reflection/beam-free ).…