Reflection: Beam 1.0 501B A23B (reflection/beam-1.0-501b-a23b) costs $0.25 per 1M prompt tokens and $1 per 1M completion tokens, has a 1,048,576-token context window, and supports tool calling, structured outputs, reasoning and response format. Data updated 2026-10-30.
- Prompt price
- $0.25 / 1M tokens
- Completion price
- $1 / 1M tokens
- Context
- 1,048,576 tokens
- Input modalities
- text
- Output modalities
- text
- Tokenizer
- Other
- Instruct type
- —
- Knowledge cutoff
- 2026-06-30
- Hugging Face
- reflection/Beam-1.0-501B-A23B
Last price change: 2026-10-22
Beam 1.0 is Reflection's open-weight reasoning model for coding and long-horizon agentic workflows. It uses a sparse mixture-of-experts architecture with 501B total and 23B active parameters per token, and a...