Skip to content

Gemini 2.5 Pro vs GPT-5 Pro

Gemini 2.5 Pro

Google

84#47
vs
GPT-5 Pro

OpenAI

89#34
Signal-by-Signal Comparison
SignalGemini 2.5 ProDeltaGPT-5 Pro
Capabilities
100
--
100
Benchmarks
80
-8
88
Pricing
90
+85
5
Context window size
96
+7
89
Recency
59
-20
79
Output Capacity
80
-5
85
Overall Result
2 wins
of 6
3 wins
GPT-5 Pro wins 3 of 6 signals

Score History

Score History (24 data points)
Gemini 2.5 ProGPT-5 Pro
Gemini 2.5 Pro

83.5

current score

Leader

GPT-5 Pro

right now

GPT-5 Pro

88.7

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 Pro

OpenAI

Per request$0.075000
Daily$250.00
Monthly$7500.00
Annual$90000.00

Gemini 2.5 Pro saves you $6875.00/month

That's $82500.00/year compared to GPT-5 Pro at your current usage level of 100K calls/month.

92% 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 Pro pricing:
Input:$15.00/M tokens
Output:$120.00/M tokens
Gemini 2.5 Pro

Google

84

Composite Score

Winner
GPT-5 Pro

OpenAI

89

Composite Score

Signal-by-Signal Comparison
MetricGemini 2.5 ProGPT-5 ProWinner
Overall Score
84
89
GPT-5 Pro
Rank#47#34
GPT-5 Pro
Quality Rank#47#34
GPT-5 Pro
Adoption Rank#47#34
GPT-5 Pro
Parameters------
Context Window1049K400K
Gemini 2.5 Pro
Pricing$1.25/$10.00/M$15.00/$120.00/M--
Signal Scores
Capabilities
100
100
Gemini 2.5 Pro
Benchmarks
80
88
GPT-5 Pro
Pricing
90
5
Gemini 2.5 Pro
Context window size
96
89
Gemini 2.5 Pro
Recency
59
79
GPT-5 Pro
Output Capacity
80
85
GPT-5 Pro
Benchmark Head-to-Head(13 benchmarks)
Gemini 2.5: 3GPT-5 Pro: 7
Gemini 2.5
GPT-5 Pro
Normalized 0-100%
MMLU
90.8%93%
MMLU-Pro
86%84.5%
GPQA Diamond
84%85%
MATH-500
95.2%92.5%
HumanEval
-96.5%
SWE-bench Verified
63.8%75%
AIME 2024
92%-
IFEval
87.2%92%
BBH
88%90.5%
Arena Elo
14441465
LiveBench
75.6%76%
HLE
35.2%35%
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 ProElite Tier

Scores 89/100 (rank #34), placing it in the top 89% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

GPT-5 Pro has a 5-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:

  • High-volume production workloads where API costs must be minimized
  • Processing long documents or large codebases (1049K token context)
  • Step-by-step reasoning and chain-of-thought problem solving

Choose GPT-5 Pro 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 Pro
Input cost$15.00/M tokens
Output cost$120.00/M tokens
Cost per quality point$1.522
Est. monthly (1M tokens/day)$2025.00

Gemini 2.5 Pro offers 92% better value per quality point. At 1M tokens/day, you'd spend $168.75/month with Gemini 2.5 Pro vs $2025.00/month with GPT-5 Pro - a $1856.25 monthly difference.

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

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 (89/100) correlates with better nuance, coherence, and style in long-form content

GPT-5 Pro

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 Pro

GPT-5 Pro has a moderate advantage with a 5.200000000000003-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 - 92% 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 Pro
Recommended

by OpenAI

Consider for specialized use cases.

Capability Comparison
CapabilityGemini 2.5 ProGPT-5 Pro
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 Pro

OpenAI

$171.00
estimated monthly cost

Gemini 2.5 Pro saves you $156.75/month

That's 92% cheaper than GPT-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
ParameterGemini 2.5 ProGPT-5 Pro
Context Window1.0M400K
Max Output Tokens65,536128,000
Open SourceNoNo
CreatedJun 17, 2025Oct 6, 2025
Last updated: 54m ago

Related comparisons

Gemini 2.5 Pro vs GPT-5 Pro (2026) | LM Market Cap