LLMversus

DeepSeek V2.5 vs o1: Pricing, Benchmarks & Verdict (2026)

Pricing verified Sep 14, 2026By LLMversusUpdated September 17, 2026View methodology

⚡ Quick Answer

Compare DeepSeek V2.5 and o1 across pricing, benchmarks, and capabilities.

Updated: September 14, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureDeepSeek V2.5o1
ProviderDeepSeekOpenAI
Input Price / 1M tokens$0.140$15.00
Output Price / 1M tokens$0.280$60.00
Context Window
128K
200K
Max Output Tokens
4,096
100,000
Arena ELO
1,200
1,310
Coding ELO
1,220
1,310
TTFT (ms)
150
500
Tokens/sec
100
20
MultimodalNoNo
JSON ModeYesYes
Function CallingYesYes
VisionNoNo
When to Use DeepSeek V2.5

DeepSeek V2.5 excels at coding, general-purpose tasks.

Strengths:

  • Excellent value
  • Strong code generation
  • Good quality

Best for:

codinggeneral-purpose
When to Use o1

o1 excels at reasoning, coding, math tasks.

Strengths:

  • Best reasoning model
  • Code execution
  • Extended thinking

Best for:

reasoningcodingmath

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