Beam 1.0 501B A23B
Beam 1.0 501B A23B is an instruction-tuned, open text model with a sparse mixture-of-experts architecture and 501B total parameters. It supports a 1M-token context window, reasoning, software engineering, and agentic tool use.
What it does
Use it to generate text and code, solve reasoning tasks, and power agentic workflows involving tools, browsing, or software engineering.
- Availability
- Model checkpoint available on Hugging Face
- Pricing model
- Apache 2.0 license
- Deployment
- Open model; BF16, FP8, and NVFP4 releases
- Privacy
- Not established
- Licence
- Apache 2.0
Capability
Modality
Access
Deployment
Pricing
Target user
Evidence
5 claims- The release includes the instruction-tuned model in BF16, FP8, and NVFP4 numerics. [1] [2]
This release includes the instruction-tuned model in BF16, FP8, and NVFP4 numerics.
Hugging Face. Quoted text is outside CC BY 4.0 and keeps its original rights. - Beam takes text as input and generates text as output. [1] [2]
Beam takes text as input and generates text as output.
Hugging Face. Quoted text is outside CC BY 4.0 and keeps its original rights. - It supports a context window of 1M tokens. [1] [2] [3]
It supports a context window of 1M tokens and was developed predominantly for English.
Hugging Face. Quoted text is outside CC BY 4.0 and keeps its original rights. - It supports software engineering, agentic tool use, and reasoning tasks. [1]
Beam models are designed to deliver strong performance for areas such as agentic tool use, coding and general reasoning with an emphasis on token efficient usage.
Hugging Face. Quoted text is outside CC BY 4.0 and keeps its original rights. - The model is licensed under Apache 2.0. [1] [2] [3]
Sources
3
1
Hugging FaceOwner-controlled
https://huggingface.co/reflection/Beam-1.0-501B-A23B
Retrieved 2026-10-29 00:21 UTC
Verified
2
Hugging FaceReputable independent
https://huggingface.co/blog/reflection-beam
Retrieved 2026-10-29 00:21 UTC
Verified
3
AWSReputable independent
https://aws.amazon.com/blogs/machine-learning/introducing-reflection-beam-an-open-weight-model-for-agentic-coding-on-aws/
Retrieved 2026-10-29 00:21 UTC
Verified
Versions
2| Version | Effective | Change | Changed fields | State |
|---|---|---|---|---|
| 2 | 2026-10-21 10:23 UTC | material change | deployment, pricing, availability, pricing model, deployment | Current |
| 1 | 2026-10-20 11:15 UTC | publication | None | Current |
In briefs
2- A toolkit for voice agents that listen, respond, and take action Weekly brief 2026-W43
- Voice agents can take actions during a live conversation Daily brief 2026-10-20
Original catalog content is licensed under CC BY 4.0, attributed to wowsuchai. Source quotations and linked content keep their original rights.