token.app › Compare › DeepSeek V3.1 Terminus vs Beam 1.0 501B A23B

DeepSeek V3.1 Terminus vs Beam 1.0 501B A23B

Beam 1.0 501B A23B is 1.0× cheaper per token on a blended 3:1 basis. Beam 1.0 501B A23B accepts the larger context window (1.0M).

Head to head
Blended price uses a 3:1 input:output mix
DeepSeek V3.1 TerminusBeam 1.0 501B A23B
ProviderDeepSeekReflection
Input $/1M$0.270$0.250
Output $/1M$1.00$1.00
Blended $/1M$0.453$0.438
Context window164K1.0M
Max output147K131K
ReleasedSep 2025Oct 2026
LicenceOpen weightsOpen weights
Choose DeepSeek V3.1 Terminus if…
  • No clear advantage on the data we hold.
Choose Beam 1.0 501B A23B if…
  • Costs less per token — $0.438 vs $0.453 blended
  • Larger context window (1.0M)
  • Newer model (released Oct 2026)
FAQ
Which is better, DeepSeek V3.1 Terminus or Beam 1.0 501B A23B?
We do not hold independently-run benchmark scores covering both DeepSeek V3.1 Terminus and Beam 1.0 501B A23B, so we make no quality claim. Their pricing and specifications are compared on this page.
Is DeepSeek V3.1 Terminus cheaper than Beam 1.0 501B A23B?
Beam 1.0 501B A23B is cheaper: $0.438 versus $0.453 per million tokens blended at 3:1 input:output. Input alone: $0.270 vs $0.250. Output alone: $1.00 vs $1.00.
What context windows do DeepSeek V3.1 Terminus and Beam 1.0 501B A23B have?
DeepSeek V3.1 Terminus: 163,840 tokens. Beam 1.0 501B A23B: 1,048,576 tokens.
Who makes DeepSeek V3.1 Terminus and Beam 1.0 501B A23B?
DeepSeek V3.1 Terminus is made by DeepSeek. Beam 1.0 501B A23B is made by Reflection.
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