Reflection: Beam 1.0 501B A23B
Analysis Summary
Reflection: Beam 1.0 501B A23B comes from Reflection. It launched in October 2026, making it a current-generation release. We place it in the Emerging tier, where it sits at #689 of 717 models overall.
Its 1M-token context window is larger than 95% of the models we list, suiting long documents, large codebases, and retrieval-heavy workloads. Crucially for business adoption, Reflection: Beam 1.0 501B A23B combines tool use, function calling, and step-by-step reasoning in a single model, letting teams consolidate several use cases instead of stitching together multiple services.
At $0.250 input and $1.00 output per 1M tokens, Reflection: Beam 1.0 501B A23B is aggressively priced for high-volume use which makes it easy to justify for cost-sensitive, high-throughput deployments. Reflection: Beam 1.0 501B A23B is worth evaluating where Reflection’s ecosystem and the model’s specific capabilities fit your workflow.
The DFO score ranks models on the Artificial Analysis Intelligence Index and is refreshed as new models launch. The write-up and verdict are our own. Feedback?
DFO Verdict
Reflection: Beam 1.0 501B A23B currently sits at #704 of 717 models on our board. We class it as a emerging-tier model.
Benchmarks
Artificial Analysis data refreshed Oct 22, 2026. Arena ratings from the Oct 20, 2026 text leaderboard, with style control.
This model was released recently. Benchmark figures are preliminary and are likely to be updated as independent testing is finalised.
How Reflection: Beam 1.0 501B A23B compares
Its 1M-token context window is larger than 95% of the models we list. At $0.25 per million input tokens it is cheaper than 48% of comparable models.
Dark bar = input · light bar = output, scaled to the priciest peer.
1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $0.25 | $0.000250 |
| Output | $1.00 | $0.001000 |
What would Reflection: Beam 1.0 501B A23B cost your business?
Pick the job that looks most like yours, then fine-tune with the sliders. Estimates update live.
A website chatbot handling around 100 customer conversations a day, a few short messages each.
Full calculator with 717 models → Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save Reflection: Beam 1.0 501B A23B for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout 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..
Frequently asked questions about Reflection: Beam 1.0 501B A23B
How much does Reflection: Beam 1.0 501B A23B cost?
Reflection: Beam 1.0 501B A23B costs $0.25 per million input tokens and $1.00 per million output tokens.
What is the context window of Reflection: Beam 1.0 501B A23B?
Reflection: Beam 1.0 501B A23B has a context window of 1,048,576 tokens (1M).
What can Reflection: Beam 1.0 501B A23B do?
Reflection: Beam 1.0 501B A23B supports tool use and function calling.
Who created Reflection: Beam 1.0 501B A23B?
Reflection: Beam 1.0 501B A23B is developed by Reflection and was released on October 16, 2026.