token.app › Compare › DeepSeek V3.1 Terminus vs GPT-5.6 Terra

DeepSeek V3.1 Terminus vs GPT-5.6 Terra

DeepSeek V3.1 Terminus is 5.0× cheaper per token on a blended 3:1 basis. GPT-5.6 Terra accepts the larger context window (1.1M).

Head to head
Blended price uses a 3:1 input:output mix
DeepSeek V3.1 TerminusGPT-5.6 Terra
ProviderDeepSeekOpenAI
Input $/1M$0.270$1.00
Output $/1M$1.00$6.00
Blended $/1M$0.453$2.25
Context window164K1.1M
Max output33K128K
ReleasedSep 2025Jul 2026
LicenceOpen weightsProprietary
Choose DeepSeek V3.1 Terminus if…
  • Costs less per token — $0.453 vs $2.25 blended
  • Open weights — self-hostable
Choose GPT-5.6 Terra if…
  • Larger context window (1.1M)
  • Newer model (released Jul 2026)
FAQ
Which is better, DeepSeek V3.1 Terminus or GPT-5.6 Terra?
We do not hold independently-run benchmark scores covering both DeepSeek V3.1 Terminus and GPT-5.6 Terra, so we make no quality claim. Their pricing and specifications are compared on this page.
Is DeepSeek V3.1 Terminus cheaper than GPT-5.6 Terra?
DeepSeek V3.1 Terminus is cheaper: $0.453 versus $2.25 per million tokens blended at 3:1 input:output. Input alone: $0.270 vs $1.00. Output alone: $1.00 vs $6.00.
What context windows do DeepSeek V3.1 Terminus and GPT-5.6 Terra have?
DeepSeek V3.1 Terminus: 163,840 tokens. GPT-5.6 Terra: 1,050,000 tokens.
Who makes DeepSeek V3.1 Terminus and GPT-5.6 Terra?
DeepSeek V3.1 Terminus is made by DeepSeek. GPT-5.6 Terra is made by OpenAI.
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