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Gemini 2.5 Pro vs GPT-5.2

Gemini 2.5 Pro

Google

84#47
vs
GPT-5.2

OpenAI

91#19
Signal-by-Signal Comparison
SignalGemini 2.5 ProDeltaGPT-5.2
Capabilities
100
--
100
Benchmarks
80
-10
89
Pricing
90
+4
86
Context window size
96
+7
89
Recency
59
-32
91
Output Capacity
80
-5
85
Overall Result
2 wins
of 6
3 wins
GPT-5.2 wins 3 of 6 signals

Score History

Score History (24 data points)
Gemini 2.5 ProGPT-5.2
Gemini 2.5 Pro

83.5

current score

Leader

GPT-5.2

right now

GPT-5.2

90.5

current score

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

Gemini 2.5 Pro

Google

Best Value
Per request$0.006250
Daily$20.83
Monthly$625.00
Annual$7500.00

GPT-5.2

OpenAI

Per request$0.008750
Daily$29.17
Monthly$875.00
Annual$10500.00

Gemini 2.5 Pro saves you $250.00/month

That's $3000.00/year compared to GPT-5.2 at your current usage level of 100K calls/month.

29% cheaper
Choose Gemini 2.5 Pro for cost optimization

Gemini 2.5 Pro pricing:
Input:$1.25/M tokens
Output:$10.00/M tokens
GPT-5.2 pricing:
Input:$1.75/M tokens
Output:$14.00/M tokens
Gemini 2.5 Pro

Google

84

Composite Score

Winner
GPT-5.2

OpenAI

91

Composite Score

Signal-by-Signal Comparison
MetricGemini 2.5 ProGPT-5.2Winner
Overall Score
84
91
GPT-5.2
Rank#47#19
GPT-5.2
Quality Rank#47#19
GPT-5.2
Adoption Rank#47#19
GPT-5.2
Parameters------
Context Window1049K400K
Gemini 2.5 Pro
Pricing$1.25/$10.00/M$1.75/$14.00/M--
Signal Scores
Capabilities
100
100
Gemini 2.5 Pro
Benchmarks
80
89
GPT-5.2
Pricing
90
86
Gemini 2.5 Pro
Context window size
96
89
Gemini 2.5 Pro
Recency
59
91
GPT-5.2
Output Capacity
80
85
GPT-5.2
Benchmark Head-to-Head(13 benchmarks)
Gemini 2.5: 11 tiesGPT-5.2: 8
Gemini 2.5
GPT-5.2
Normalized 0-100%
MMLU
90.8%93.5%
MMLU-Pro
86%86%
GPQA Diamond
84%87%
MATH-500
95.2%94%
HumanEval
-97%
SWE-bench Verified
63.8%78%
AIME 2024
92%-
IFEval
87.2%93%
BBH
88%91.5%
Arena Elo
14441481
LiveBench
75.6%77.5%
HLE
35.2%37%
BigCodeBench
29.7%-
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.

Gemini 2.5 ProStrong Performer

Scores 84/100 (rank #47), placing it in the top 84% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
GPT-5.2Elite Tier

Scores 91/100 (rank #19), placing it in the top 94% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

GPT-5.2 has a 7-point advantage, which typically translates to noticeably better performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose Gemini 2.5 Pro when you need:

  • Processing long documents or large codebases (1049K token context)
  • Step-by-step reasoning and chain-of-thought problem solving

Choose GPT-5.2 when you need:

  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
Gemini 2.5 ProBest Value
Input cost$1.25/M tokens
Output cost$10.00/M tokens
Cost per quality point$0.135
Est. monthly (1M tokens/day)$168.75
GPT-5.2
Input cost$1.75/M tokens
Output cost$14.00/M tokens
Cost per quality point$0.174
Est. monthly (1M tokens/day)$236.25

Gemini 2.5 Pro offers 29% better value per quality point. At 1M tokens/day, you'd spend $168.75/month with Gemini 2.5 Pro vs $236.25/month with GPT-5.2 - a $67.50 monthly difference.

Latency & Speed
Gemini 2.5 ProFaster
Speed score0/100
GPT-5.2
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

Gemini 2.5 Pro

Customer support chatbot

Suitable for user-facing chat with competitive response times. Gemini 2.5 Pro also offers lower per-token costs for high-volume support

Gemini 2.5 Pro

Long document analysis

Larger context window (1049K tokens) can process longer documents, contracts, and research papers in a single pass

Gemini 2.5 Pro

Batch data extraction

Lower output pricing ($10.00/M) reduces costs when processing thousands of records daily

Gemini 2.5 Pro

Creative writing & content

Higher overall composite score (91/100) correlates with better nuance, coherence, and style in long-form content

GPT-5.2

Image understanding & OCR

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

Gemini 2.5 Pro
Which Should You Choose?
Our recommendation:
GPT-5.2

GPT-5.2 has a moderate advantage with a 7-point lead in composite score. It wins on more signal dimensions, but Gemini 2.5 Pro has specific strengths that could make it the better choice for certain workflows.

by Google

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Cost - 29% 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-5.2
Recommended

by OpenAI

Consider for specialized use cases.

Capability Comparison
CapabilityGemini 2.5 ProGPT-5.2
Vision (Image Input)
Function Calling
Streaming
JSON Mode
Reasoning
Web Search
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

Gemini 2.5 Pro

Google

Best Value
$14.25
estimated monthly cost

GPT-5.2

OpenAI

$19.95
estimated monthly cost

Gemini 2.5 Pro saves you $5.70/month

That's 29% cheaper than GPT-5.2 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
ParameterGemini 2.5 ProGPT-5.2
Context Window1.0M400K
Max Output Tokens65,536128,000
Open SourceNoNo
CreatedJun 17, 2025Dec 10, 2025
Last updated: 56m ago

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Gemini 2.5 Pro vs GPT-5.2 (2026) | LM Market Cap