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DeepSeek V3.2 vs GPT-5.5 Pro

DeepSeek V3.2

DeepSeek

83#72
vs
GPT-5.5 Pro

OpenAI

93#11
Signal-by-Signal Comparison
SignalDeepSeek V3.2DeltaGPT-5.5 Pro
Capabilities
67
-33
100
Benchmarks
87
-5
92
Pricing
100
+95
5
Context window size
83
-13
96
Recency
77
-23
100
Output Capacity
77
-5
82
Overall Result
1 wins
of 6
5 wins
GPT-5.5 Pro wins 5 of 6 signals

Score History

Score History (33 data points)
DeepSeek V3.2GPT-5.5 Pro
DeepSeek V3.2

83.4

current score

Leader

GPT-5.5 Pro

right now

GPT-5.5 Pro

92.7

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

DeepSeek V3.2

DeepSeek

Best Value
Per request$0.000490
Daily$1.63
Monthly$49.00
Annual$588.00

GPT-5.5 Pro

OpenAI

Per request$0.120000
Daily$400.00
Monthly$12000.00
Annual$144000.00

DeepSeek V3.2 saves you $11951.00/month

That's $143412.00/year compared to GPT-5.5 Pro at your current usage level of 100K calls/month.

100% cheaper
Choose DeepSeek V3.2 for cost optimization

DeepSeek V3.2 pricing:
Input:$0.28/M tokens
Output:$0.42/M tokens
GPT-5.5 Pro pricing:
Input:$30.00/M tokens
Output:$180.00/M tokens
DeepSeek V3.2

DeepSeek

83

Composite Score

Winner
GPT-5.5 Pro

OpenAI

93

Composite Score

Signal-by-Signal Comparison
MetricDeepSeek V3.2GPT-5.5 ProWinner
Overall Score
83
93
GPT-5.5 Pro
Rank#72#11
GPT-5.5 Pro
Quality Rank#72#11
GPT-5.5 Pro
Adoption Rank#72#11
GPT-5.5 Pro
Parameters------
Context Window164K1050K
GPT-5.5 Pro
Pricing$0.28/$0.42/M$30.00/$180.00/M--
Signal Scores
Capabilities
67
100
GPT-5.5 Pro
Benchmarks
87
92
GPT-5.5 Pro
Pricing
100
5
DeepSeek V3.2
Context window size
83
96
GPT-5.5 Pro
Recency
77
100
GPT-5.5 Pro
Output Capacity
77
82
GPT-5.5 Pro
Benchmark Head-to-Head(5 benchmarks)
DeepSeek V3.2: 0GPT-5.5 Pro: 2
DeepSeek V3.2
GPT-5.5 Pro
Normalized 0-100%
MMLU
88.5%92.4%
MMLU-Pro
85%-
GPQA Diamond
85.7%93.6%
SWE-bench Verified
-88.7%
Arena Elo
1425-
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

DeepSeek V3.2Strong Performer

Scores 83/100 (rank #72), placing it in the top 76% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
GPT-5.5 ProElite Tier

Scores 93/100 (rank #11), placing it in the top 97% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

GPT-5.5 Pro has a 9-point advantage, which typically translates to noticeably better performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose DeepSeek V3.2 when you need:

  • High-volume production workloads where API costs must be minimized
  • Step-by-step reasoning and chain-of-thought problem solving
  • Self-hosted deployments where you need full control over the model

Choose GPT-5.5 Pro when you need:

  • Processing long documents or large codebases (1050K token context)
  • Multimodal workflows that require image understanding
  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
DeepSeek V3.2Best Value
Input cost$0.28/M tokens
Output cost$0.42/M tokens
Cost per quality point$0.008
Est. monthly (1M tokens/day)$10.50
GPT-5.5 Pro
Input cost$30.00/M tokens
Output cost$180.00/M tokens
Cost per quality point$2.265
Est. monthly (1M tokens/day)$3150.00

DeepSeek V3.2 offers 100% better value per quality point. At 1M tokens/day, you'd spend $10.50/month with DeepSeek V3.2 vs $3150.00/month with GPT-5.5 Pro - a $3139.50 monthly difference.

Latency & Speed
DeepSeek V3.2Faster
Speed score0/100
GPT-5.5 Pro
Speed score0/100

Both models have comparable response speeds. For most applications, the latency difference is negligible.

When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

DeepSeek V3.2

Customer support chatbot

Suitable for user-facing chat with competitive response times. DeepSeek V3.2 also offers lower per-token costs for high-volume support

DeepSeek V3.2

Long document analysis

Larger context window (1050K tokens) can process longer documents, contracts, and research papers in a single pass

GPT-5.5 Pro

Batch data extraction

Lower output pricing ($0.42/M) reduces costs when processing thousands of records daily

DeepSeek V3.2

Creative writing & content

Higher overall composite score (93/100) correlates with better nuance, coherence, and style in long-form content

GPT-5.5 Pro

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

GPT-5.5 Pro
Which Should You Choose?
Our recommendation:
GPT-5.5 Pro

GPT-5.5 Pro has a moderate advantage with a 9.299999999999997-point lead in composite score. It wins on more signal dimensions, but DeepSeek V3.2 has specific strengths that could make it the better choice for certain workflows.

by DeepSeek

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Cost - 100% lower pricing; better value at scale
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale
GPT-5.5 Pro
Recommended

by OpenAI

Consider for specialized use cases.

Capability Comparison
CapabilityDeepSeek V3.2GPT-5.5 Pro
Vision (Image Input)differs
Function Calling
Streaming
JSON Mode
Reasoning
Web Searchdiffers
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

DeepSeek V3.2

DeepSeek

Best Value
$1.01
estimated monthly cost

GPT-5.5 Pro

OpenAI

$270.00
estimated monthly cost

DeepSeek V3.2 saves you $268.99/month

That's 100% cheaper than GPT-5.5 Pro at 1,000 tokens/request and 100 requests/day.

Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.

Parameters & Context
ParameterDeepSeek V3.2GPT-5.5 Pro
Context Window164K1.1M
Max Output Tokens65,536128,000
Open SourceYesNo
CreatedDec 1, 2025Apr 24, 2026
Last updated: 9m ago

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