Model Comparison
Nova 2.0 Omni (medium)
vs. GPT-5.5 (xhigh)
Comparing 2 AI models · 10 benchmarks · Amazon, OpenAI
Recommended Pick
Op GPT-5.5 (xhigh) 11 metric wins Strongest on: Throughput, Reasoning, Intelligence
Best Value
Nova 2.0 Omni (medium)
100.0 value score
58.0 reasoning / $0.85/1M
Lowest Price
Nova 2.0 Omni (medium)
$0.30/1M input price
Best Reasoning
GPT-5.5 (xhigh)
66.0 reasoning score
Blends available reasoning benchmarks
Best for Coding
GPT-5.5 (xhigh)
59.1 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
Nova 2.0 Omni (medium) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
Nova 2.0 Omni (medium) is 16.7x cheaper on input tokens than GPT-5.5 (xhigh).
Reasoning gap
GPT-5.5 (xhigh) leads Nova 2.0 Omni (medium) by 8.0 points on reasoning.
Coding gap
GPT-5.5 (xhigh) leads Nova 2.0 Omni (medium) by 44.0 points on coding.
Top-pick rationale
GPT-5.5 (xhigh) wins 11 measurable categories, including Throughput, Reasoning, Intelligence, Coding.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Nova 2.0 Omni (medium)
Amazon
TTFT
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Time
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tok/s
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Tokens
—
Cost
—
GPT-5.5 (xhigh)
OpenAI
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
Full Comparison
| Metric | Am Nova 2.0 Omni (medium) | Top Pick Op GPT-5.5 (xhigh) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.30/1M | $5.00/1M |
| Output Cost | $2.50/1M | $30.00/1M |
| Blended (3:1) | $0.85/1M | $11.25/1M |
| Specifications | ||
| Organization | Amazon | OpenAI |
| Release Date | Nov 26, 2025 | Apr 23, 2026 |
| Performance & Speed | ||
| Throughput | — | 63.7 tok/s |
| TTFT | — | 83152ms |
| Latency | — | 83152ms |
| Composite Indices | ||
| Value Score | 100.0 | 8.6 |
| Reasoning Score | 58.0 | 66.0 |
| Intelligence | 28.0 | 60.2 |
| Coding | 15.1 | 59.1 |
| Math | 89.7 | — |
| Standard Benchmarks | ||
| GPQA | 76.0% | 93.5% |
| MMLU Pro | 80.9% | — |
| HLE | 6.8% | 44.3% |
| LiveCodeBench | 66.0% | — |
| AIME 2025 | 89.7% | — |
| SciCode | 36.2% | 56.1% |
| LCR | 53.7% | 74.3% |
| IFBench | 66.2% | 75.9% |
| TAU-bench v2 | 80.4% | 93.9% |
| TerminalBench Hard | 4.5% | 60.6% |
Key Takeaways
Nova 2.0 Omni (medium) offers the best value at $0.30/1M, making it ideal for high-volume applications and cost-conscious projects.
GPT-5.5 (xhigh) has the strongest reasoning profile with a 66.0 reasoning score, combining the available reasoning-heavy benchmarks.
GPT-5.5 (xhigh) reaches a 59.1 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
Nova 2.0 Omni (medium)
- Cost-sensitive applications
- High-volume processing
GPT-5.5 (xhigh)
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
