Model Comparison
GPT-5.2 (xhigh)
vs. Gemini 3.1 Pro Preview
Comparing 2 AI models · 10 benchmarks · OpenAI, Google
Recommended Pick
GoGemini 3.1 Pro Preview10 metric winsStrongest on: Output price, Blended price, Throughput
Best Value
GPT-5.2 (xhigh)
100.0 value score
73.2 reasoning / $4.81/1M
Lowest Price
GPT-5.2 (xhigh)
$1.75/1M input price
Best Reasoning
GPT-5.2 (xhigh)
73.2 reasoning score
Blends available reasoning benchmarks
Best for Coding
Gemini 3.1 Pro Preview
68.8 coding index
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Best value
GPT-5.2 (xhigh) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
GPT-5.2 (xhigh) is 1.1x cheaper on input tokens than Gemini 3.1 Pro Preview.
Reasoning gap
GPT-5.2 (xhigh) leads Gemini 3.1 Pro Preview by 11.4 points on reasoning.
Top-pick rationale
Gemini 3.1 Pro Preview wins 10 measurable categories, including Output price, Blended price, Throughput, Intelligence.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
GPT-5.2 (xhigh)
OpenAI
TTFT
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Time
—
tok/s
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Tokens
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Cost
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Gemini 3.1 Pro Preview
TTFT
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Time
—
tok/s
—
Tokens
—
Cost
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Which answer was more useful?
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Full Comparison
| Metric | Op GPT-5.2 (xhigh) | Top Pick Go Gemini 3.1 Pro Preview |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $1.75/1M | $2.00/1M |
| Output Cost | $14.00/1M | $12.00/1M |
| Blended (3:1) | $4.81/1M | $4.50/1M |
| Specifications | ||
| Organization | OpenAI | |
| Release Date | Dec 11, 2025 | Feb 19, 2026 |
| Performance & Speed | ||
| Throughput | — | 132.2 tok/s |
| TTFT | — | 30979ms |
| Latency | — | 30979ms |
| Composite Indices | ||
| Value Score | 100.0 | 90.3 |
| Reasoning Score | 73.2 | 61.8 |
| Intelligence | 42.2 | 46.5 |
| Coding | — | 68.8 |
| Math | 99.0 | — |
| Standard Benchmarks | ||
| GPQA | 90.3% | 94.1% |
| MMLU Pro | 87.4% | — |
| HLE | 35.4% | 44.7% |
| LiveCodeBench | 88.9% | — |
| AIME 2025 | 99.0% | — |
| SciCode | 52.1% | 58.9% |
| LCR | 72.7% | 72.7% |
| IFBench | 75.4% | 77.1% |
| TAU-bench v2 | 84.8% | 95.6% |
| TerminalBench Hard | 47.0% | 53.8% |
Key Takeaways
GPT-5.2 (xhigh) offers the best value at $1.75/1M,making it ideal for high-volume applications and cost-conscious projects.
GPT-5.2 (xhigh) has the strongest reasoning profile with a 73.2 reasoning score,combining the available reasoning-heavy benchmarks.
Gemini 3.1 Pro Preview reaches a 68.8 coding index,making it the top choice for software development and code generation tasks.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
GPT-5.2 (xhigh)
- Cost-sensitive applications
- High-volume processing
- Complex reasoning tasks
- Research & analysis
Gemini 3.1 Pro Preview
- Code generation
- Software development
