# Beam 1.0 501B A23B — price & specs

Source: https://modelbank.ai/models/beam-1.0-501b-a23b · updated 2026-11-01 · ModelBank

| Field | Value |
|---|---|
| Vendor | Reflection |
| Input price | $0.25 / 1M tokens |
| Output price | $1 / 1M tokens |
| Cached input | $0.05 / 1M tokens |
| Context window | 1,048,576 tokens |
| Max output | 131,072 tokens |
| Input modalities | text |
| Reasoning / tool use | yes / yes |
| Intelligence / coding index | — / — |
| Released | 2026-10-16 |
| Retirement date | none announced |

## About

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...

## Price history

- 2026-10-16: $0.25 in / $1 out
- 2026-10-17: $1 in / $3 out
- 2026-10-20: $0.3 in / $1 out
- 2026-10-22: $0.25 in / $1 out


JSON: https://modelbank.ai/api/v1/models/beam-1.0-501b-a23b