Model Comparison
GPT-5.4 (xhigh)
vs. Gemini 3 Pro Preview (high)
Comparing 2 AI models · 10 benchmarks · OpenAI, Google
Recommended Pick
Op GPT-5.4 (xhigh) 9 metric wins Strongest on: Throughput, Intelligence, Coding
Best Value
Gemini 3 Pro Preview (high)
100.0 value score
71.8 reasoning / $4.50/1M
Lowest Price
Gemini 3 Pro Preview (high)
$2.00/1M input price
Best Reasoning
Gemini 3 Pro Preview (high)
71.8 reasoning score
Blends available reasoning benchmarks
Best for Coding
GPT-5.4 (xhigh)
57.2 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
Gemini 3 Pro Preview (high) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
Gemini 3 Pro Preview (high) is 1.3x cheaper on input tokens than GPT-5.4 (xhigh).
Reasoning gap
Gemini 3 Pro Preview (high) leads GPT-5.4 (xhigh) by 10.1 points on reasoning.
Coding gap
GPT-5.4 (xhigh) leads Gemini 3 Pro Preview (high) by 10.7 points on coding.
Top-pick rationale
GPT-5.4 (xhigh) wins 9 measurable categories, including Throughput, Intelligence, Coding, GPQA.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
GPT-5.4 (xhigh)
OpenAI
TTFT
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Time
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tok/s
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Tokens
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Cost
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Gemini 3 Pro Preview (high)
TTFT
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Time
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tok/s
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Tokens
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Cost
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Which answer was more useful?
Full Comparison
| Metric | Top Pick Op GPT-5.4 (xhigh) | Go Gemini 3 Pro Preview (high) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $2.50/1M | $2.00/1M |
| Output Cost | $15.00/1M | $12.00/1M |
| Blended (3:1) | $5.63/1M | $4.50/1M |
| Specifications | ||
| Organization | OpenAI | |
| Release Date | Mar 5, 2026 | Nov 18, 2025 |
| Performance & Speed | ||
| Throughput | 157.3 tok/s | — |
| TTFT | 107743ms | — |
| Latency | 107743ms | — |
| Composite Indices | ||
| Value Score | 68.7 | 100.0 |
| Reasoning Score | 61.7 | 71.8 |
| Intelligence | 51.4 | 39.6 |
| Coding | 57.2 | 46.5 |
| Math | — | 95.7 |
| Standard Benchmarks | ||
| GPQA | 92.0% | 90.8% |
| MMLU Pro | — | 89.8% |
| HLE | 41.6% | 37.2% |
| LiveCodeBench | — | 91.7% |
| AIME 2025 | — | 95.7% |
| SciCode | 56.6% | 56.1% |
| LCR | 74.0% | 70.7% |
| IFBench | 73.9% | 70.4% |
| TAU-bench v2 | 87.1% | 87.1% |
| TerminalBench Hard | 57.6% | 41.7% |
Key Takeaways
Gemini 3 Pro Preview (high) offers the best value at $2.00/1M, making it ideal for high-volume applications and cost-conscious projects.
Gemini 3 Pro Preview (high) has the strongest reasoning profile with a 71.8 reasoning score, combining the available reasoning-heavy benchmarks.
GPT-5.4 (xhigh) reaches a 57.2 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-5.4 (xhigh)
- Code generation
- Software development
Gemini 3 Pro Preview (high)
- Cost-sensitive applications
- High-volume processing
- Complex reasoning tasks
- Research & analysis
