token.app › Compare › GPT-5.5 Pro (batch) vs Beam 1.0 501B A23B

GPT-5.5 Pro (batch) vs Beam 1.0 501B A23B

Beam 1.0 501B A23B is 77× cheaper per token on a blended 3:1 basis. GPT-5.5 Pro (batch) accepts the larger context window (1.1M).

Head to head
Blended price uses a 3:1 input:output mix
GPT-5.5 Pro (batch)Beam 1.0 501B A23B
ProviderOpenAIReflection
Input $/1M$15.00$0.250
Output $/1M$90.00$1.00
Blended $/1M$33.75$0.438
Context window1.1M1.0M
Max output128K131K
ReleasedApr 2026Oct 2026
LicenceProprietaryOpen weights
Choose GPT-5.5 Pro (batch) if…
  • Larger context window (1.1M)
Choose Beam 1.0 501B A23B if…
  • Costs less per token — $0.438 vs $33.75 blended
  • Open weights — self-hostable
  • Newer model (released Oct 2026)
FAQ
Which is better, GPT-5.5 Pro (batch) or Beam 1.0 501B A23B?
We do not hold independently-run benchmark scores covering both GPT-5.5 Pro (batch) and Beam 1.0 501B A23B, so we make no quality claim. Their pricing and specifications are compared on this page.
Is GPT-5.5 Pro (batch) cheaper than Beam 1.0 501B A23B?
Beam 1.0 501B A23B is cheaper: $0.438 versus $33.75 per million tokens blended at 3:1 input:output. Input alone: $15.00 vs $0.250. Output alone: $90.00 vs $1.00.
What context windows do GPT-5.5 Pro (batch) and Beam 1.0 501B A23B have?
GPT-5.5 Pro (batch): 1,050,000 tokens. Beam 1.0 501B A23B: 1,048,576 tokens.
Who makes GPT-5.5 Pro (batch) and Beam 1.0 501B A23B?
GPT-5.5 Pro (batch) is made by OpenAI. Beam 1.0 501B A23B is made by Reflection.
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