Model Comparison
o4-mini (high)
vs. Qwen3.5 Omni Flash
Comparing 2 AI models · 12 benchmarks · OpenAI, Alibaba
Recommended Pick
Opo4-mini (high)8 metric winsStrongest on: Reasoning, Intelligence, GPQA
Best Value
Qwen3.5 Omni Flash
100.0 value score
33.4 reasoning / $0.28/1M
Lowest Price
Qwen3.5 Omni Flash
$0.10/1M input price
Best Reasoning
o4-mini (high)
70.8 reasoning score
Blends available reasoning benchmarks
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Best value
Qwen3.5 Omni Flash has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
Qwen3.5 Omni Flash is 11x cheaper on input tokens than o4-mini (high).
Speed gap
Qwen3.5 Omni Flash generates about 1.2x as many tokens per second as o4-mini (high).
Reasoning gap
o4-mini (high) leads Qwen3.5 Omni Flash by 37.4 points on reasoning.
Top-pick rationale
o4-mini (high) wins 8 measurable categories, including Reasoning, Intelligence, GPQA, HLE.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
o4-mini (high)
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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Qwen3.5 Omni Flash
Alibaba
TTFT
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Time
—
tok/s
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Tokens
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Cost
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Which answer was more useful?
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Full Comparison
| Metric | Top Pick Op o4-mini (high) | Al Qwen3.5 Omni Flash |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $1.10/1M | $0.10/1M |
| Output Cost | $4.40/1M | $0.80/1M |
| Blended (3:1) | $1.93/1M | $0.28/1M |
| Specifications | ||
| Organization | OpenAI | Alibaba |
| Release Date | Apr 16, 2025 | Mar 30, 2026 |
| Performance & Speed | ||
| Throughput | 197.0 tok/s | 243.5 tok/s |
| TTFT | 19206ms | 1056ms |
| Latency | 19206ms | 1056ms |
| Composite Indices | ||
| Value Score | 30.3 | 100.0 |
| Reasoning Score | 70.8 | 33.4 |
| Intelligence | 25.6 | 19.0 |
| Math | 90.7 | — |
| Standard Benchmarks | ||
| GPQA | 78.4% | 74.2% |
| MMLU Pro | 83.2% | — |
| HLE | 17.5% | 7.1% |
| LiveCodeBench | 85.9% | — |
| MATH 500 | 98.9% | — |
| AIME 2025 | 90.7% | — |
| AIME (Original) | 94.0% | — |
| SciCode | 46.5% | 25.5% |
| LCR | 55.0% | 44.0% |
| IFBench | 68.7% | 38.0% |
| TAU-bench v2 | 55.6% | 84.5% |
| TerminalBench Hard | 15.2% | 8.3% |
Key Takeaways
Qwen3.5 Omni Flash offers the best value at $0.10/1M,making it ideal for high-volume applications and cost-conscious projects.
o4-mini (high) has the strongest reasoning profile with a 70.8 reasoning score,combining the available reasoning-heavy benchmarks.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
o4-mini (high)
- Complex reasoning tasks
- Research & analysis
Qwen3.5 Omni Flash
- Cost-sensitive applications
- High-volume processing
