Re
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...
- Input
- text
- Output
- text
- 1M context
Providers
Available through 3 free providers. Use the model ID and API settings below to connect.
Vercel AI Gateway
VAVercel AI Gateway
* The provider match may differ from this model. Check its docs for details.
Benchmarks
Compare scores and explore results by category.
No benchmark results are available for this model yet.
Frequently asked questions
Free access, setup, and what to expect.
Beam 1.0 501B A23B is available with up to 200 requests / hour free through Kilo. Free allowances can change. Check the Beam 1.0 501B A23B provider limits before you start.
To use Beam 1.0 501B A23B, choose one of the listed Beam 1.0 501B A23B API providers and follow the provider’s account and API-key setup guide. Copy the Beam 1.0 501B A23B model ID and connection settings for your chosen provider into your app or API client. Model IDs can differ between providers. API requests go directly to the provider; Free Models is a comparison site.
Beam 1.0 501B A23B accepts text as listed input formats. Listed output formats include text. Image or audio input support does not imply image or audio generation. Check the chosen provider’s Beam 1.0 501B A23B documentation for supported file types and request formats.
Beam 1.0 501B A23B has a listed context window of 1M tokens. Tokens are small pieces of content rather than a word count. Instructions, conversation history, and other inputs use context space, and the response also needs room. The maximum output length for Beam 1.0 501B A23B may be smaller than the context window and can vary by provider.
Beam 1.0 501B A23B has both reasoning and tool calling listed as supported capabilities. Reasoning enables additional processing for complex problems. Tool calling allows a model to request functions that your app executes. Check the chosen provider’s documentation for capability availability and setup.
No benchmark results are listed for Beam 1.0 501B A23B yet. Missing scores don’t establish poor performance. Compare scores within the same benchmark: coding indexes, Elo ratings, and win rates measure different things. The index comparison charts include only scored free models listed on Free Models. Evaluate Beam 1.0 501B A23B on examples from your own task alongside context size and provider limits.