token.app › Compare › DeepSeek V3.1 Terminus vs Grok 4.5

DeepSeek V3.1 Terminus vs Grok 4.5

DeepSeek V3.1 Terminus is 6.6× cheaper per token on a blended 3:1 basis. Grok 4.5 accepts the larger context window (500K).

Head to head
Blended price uses a 3:1 input:output mix
DeepSeek V3.1 TerminusGrok 4.5
ProviderDeepSeekxAI
Input $/1M$0.270$2.00
Output $/1M$1.00$6.00
Blended $/1M$0.453$3.00
Context window164K500K
Max output33K—
ReleasedSep 2025Jul 2026
LicenceOpen weightsProprietary
Choose DeepSeek V3.1 Terminus if…
  • Costs less per token — $0.453 vs $3.00 blended
  • Open weights — self-hostable
Choose Grok 4.5 if…
  • Larger context window (500K)
  • Newer model (released Jul 2026)
FAQ
Which is better, DeepSeek V3.1 Terminus or Grok 4.5?
We do not hold independently-run benchmark scores covering both DeepSeek V3.1 Terminus and Grok 4.5, so we make no quality claim. Their pricing and specifications are compared on this page.
Is DeepSeek V3.1 Terminus cheaper than Grok 4.5?
DeepSeek V3.1 Terminus is cheaper: $0.453 versus $3.00 per million tokens blended at 3:1 input:output. Input alone: $0.270 vs $2.00. Output alone: $1.00 vs $6.00.
What context windows do DeepSeek V3.1 Terminus and Grok 4.5 have?
DeepSeek V3.1 Terminus: 163,840 tokens. Grok 4.5: 500,000 tokens.
Who makes DeepSeek V3.1 Terminus and Grok 4.5?
DeepSeek V3.1 Terminus is made by DeepSeek. Grok 4.5 is made by xAI.
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