Beam is out — free on OpenCode Zen
Open weights16 evidence links
Beam 1.0 501B A23B
Reflection
- Context window
- 1M 1,048,576 tokens
- Max output
- 131K 131,072 tokens
- Input / Output
- text → text
API pricing
USD / 1M tokens
| Input | Output | Cached input |
|---|---|---|
|
|
|
Input / output price · USD / 1M tokens
| Model | Evidence links | Input / output price |
|---|---|---|
beam-freefree · text | opencode-go | $0.00 / $0.00 |
reflection/beam-1.0-501b-a23bstandard | openrouter | $0.30 / $1.00 |
reflection/beamstandard | vercel-gateway | $0.00 / $0.00 |
reflection/beam-freefree | vercel-gateway | $0.00 / $0.00 |
Signals 2
Beam 1.0 501B A23B: Open weights
Open weights16 evidence links
Specifications
Beam 1.0 501B A23B is a model from Reflection with open weights, released on 16 Oct 2026. The context window is 1,048,576 tokens. The maximum output is 131,072 tokens. Pricing is $0.40 per million input tokens and $1.20 per million output tokens.
- Context window
- 1,048,576
- Max output
- 131,072
- Input
- text
- Output
- text
- Weights
- Open
- Input · USD / 1M tokens
- $0.40
- Output · USD / 1M tokens
- $1.20
- Cached input · USD / 1M tokens
- $0.04
Questions
What is the context window of Beam 1.0 501B A23B?
The context window is 1,048,576 tokens. The maximum output is 131,072 tokens.
How much does Beam 1.0 501B A23B cost?
Pricing is $0.40 per million input tokens and $1.20 per million output tokens. Cached input is $0.04 per million.
Are the weights of Beam 1.0 501B A23B publicly available?
Yes. Reflection publishes the weights.
When was Beam 1.0 501B A23B released?
On 16 Oct 2026.