# Reflection: Beam 1.0 501B A23B

- Model id: `reflection/beam-1.0-501b-a23b`
- Served by: -
- List price per 1M tokens, input / output, from: -, with 0% platform fee. A request is billed at the list price of the host that served it.
- Context: 1.05M, max output 944K
- Prices read 2026-11-15 09:33 UTC
- Page: https://plaingateway.com/models/reflection/beam-1.0-501b-a23b

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...

## Hosts

| Host | Endpoint | In / out /M | Cache read /M | Context | Served |
|---|---|---|---|---|---|
| Nebius | `nebius/fp4` | $0.25 / $1.00 | $0.05 | 1.05M | no |
| Coreweave | `coreweave/nvfp4` | $0.30 / $1.00 | $0.04 | 1.05M | no |
| Baseten | `baseten/fp4` | $0.40 / $1.20 | $0.04 | 1.05M | no |
| Digitalocean | `digitalocean` | $0.40 / $1.20 | $0.04 | 1.05M | no |
| Together | `together` | $0.40 / $1.20 | $0.04 | 1.05M | no |

## First request

```sh
curl https://api.plaingateway.com/api/v1/chat/completions \
  -H "Authorization: Bearer $PLAINGATEWAY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "reflection/beam-1.0-501b-a23b", "messages": [{"role": "user", "content": "Say hello in five words."}]}'
```

Sign up at https://plaingateway.com/signup (no card), create a key, send a test call, and add credits when you want more. New accounts may get a small starting credit. The whole bootstrap for agents: https://plaingateway.com/llms.txt