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Reflection: Beam 1.0 501B A23B

ReflectionNew
reflection/beam-1.0-501b-a23b

About this model

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...

Make a request

OpenAI-compatible: set the base URL and your Promptix API key, keep your existing SDK.

curl https://promptix.tn/api/v1/chat/completions \  -H "Authorization: Bearer $PROMPTIX_API_KEY" \  -H "Content-Type: application/json" \  -d '{    "model": "reflection/beam-1.0-501b-a23b",    "messages": [      {"role": "user", "content": "Hello! What can you do?"}    ]  }'

Pricing

In TND per 1M tokens. VAT and the platform fee are added at top-up.

Input tokens

0.990 TND

per 1M tokens

Output tokens

3.960 TND

per 1M tokens

1,000 requests with 1K input and 500 output tokens cost about 2.970 TND.

Specifications

Provider
Reflection
Context window
1,048,576 tokens
Input modality
Text
Added
Oct 16, 2026
Supported parameters
frequency_penaltyinclude_reasoninglogit_biaslogprobsmax_tokensmin_ppresence_penaltyreasoning