Beam 1.0 501B a23b API

Reflection's Beam 1.0 501B a23b, through an OpenAI-compatible API. Providers quote it on an open exchange, and each request goes to the offer with the lowest estimated charge that meets your rules.

Facts

Model name
beam-1.0-501b-a23b
Maker
Reflection
Context window
1M tokens
Input price
$0.401 per million tokens
Output price
$1.203 per million tokens
Providers
1 independent provider
Regions
us

Providers

Request

curl https://router.inference.ai.exchange/v1/chat/completions \
  -H "Authorization: Bearer $LIQUID_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "beam-1.0-501b-a23b",
    "messages": [{"role":"user","content":"Say hello."}]
  }'

Questions

What is Beam 1.0 501B a23b?
Beam 1.0 501B a23b is a model from Reflection.
How much does Beam 1.0 501B a23b cost?
Offers now ask $0.401 per million input tokens and $1.203 per million output tokens. A job pays for the tokens it uses. The exchange picks the cheapest eligible offer.
What is the context length of Beam 1.0 501B a23b?
The largest offer takes 1,048,576 input tokens. A smaller offer can take less. The exchange skips an offer that cannot take your message.
What can Beam 1.0 501B a23b do?
Its providers list Reasoning effort, JSON object, JSON schema, Frequency penalty, Logit bias, Log probabilities, Min-p sampling, Presence penalty, Repetition penalty, Seed, Stop sequences, Top-k sampling, Top-p sampling, Text, Tools.
What inputs and outputs does Beam 1.0 501B a23b support?
Text → Text.
Which providers serve Beam 1.0 501B a23b?
1 independent provider quote it now, with 1 offer. The table above ranks them by the cost of a typical job.
How do I call Beam 1.0 501B a23b?
Send "beam-1.0-501b-a23b" as the model in an OpenAI or Anthropic request. The API section links to setup steps for each client.
When was Beam 1.0 501B a23b listed?
The exchange first listed it on 10/20/2026. This is not its release date.

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