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Beam 1.0

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reflection/beam-1.0

262K context · Oct 2026 · 1 upstreams

Beam 1.0 is Reflection's open-weights mixture-of-experts model — 501B total parameters, 23B active across 256 experts — built for token-efficient reasoning, agentic tool use, and software-engineering workloads. Reasoning is always on with a tunable effort level; the Apache-2.0 weights are on Hugging Face.

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Details

Owner
Reflection
Kind
Chat
Released
Oct 2026
Context
262K
Data policy
Provider retention
Endpoint
/api/v1/chat/completions

Quick start

curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "reflection/beam-1.0",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'