Model Comparison
V4 Pro (Reasoning, High Effort)
vs. GPT-5.6 Sol (max)
Comparing 2 AI models · 7 benchmarks · DeepSeek, OpenAI
Recommended Pick
OpGPT-5.6 Sol (max)9 metric winsStrongest on: Reasoning, Intelligence, Coding
Best Value
V4 Pro (Reasoning, High Effort)
100.0 value score
55.7 reasoning / $0.54/1M
Lowest Price
V4 Pro (Reasoning, High Effort)
$0.43/1M input price
Best Reasoning
GPT-5.6 Sol (max)
66.7 reasoning score
Blends available reasoning benchmarks
Best for Coding
GPT-5.6 Sol (max)
77.4 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
V4 Pro (Reasoning, High Effort) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
V4 Pro (Reasoning, High Effort) is 11.5x cheaper on input tokens than GPT-5.6 Sol (max).
Speed gap
V4 Pro (Reasoning, High Effort) generates about 1.1x as many tokens per second as GPT-5.6 Sol (max).
Reasoning gap
GPT-5.6 Sol (max) leads V4 Pro (Reasoning, High Effort) by 11.0 points on reasoning.
Coding gap
GPT-5.6 Sol (max) leads V4 Pro (Reasoning, High Effort) by 18.7 points on coding.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
V4 Pro (Reasoning, High Effort)
DeepSeek
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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GPT-5.6 Sol (max)
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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Which answer was more useful?
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Full Comparison
| Metric | De V4 Pro (Reasoning, High Effort) | Top Pick Op GPT-5.6 Sol (max) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.43/1M | $5.00/1M |
| Output Cost | $0.87/1M | $30.00/1M |
| Blended (3:1) | $0.54/1M | $11.25/1M |
| Specifications | ||
| Organization | DeepSeek | OpenAI |
| Release Date | Apr 24, 2026 | Jul 9, 2026 |
| Performance & Speed | ||
| Throughput | 71.3 tok/s | 67.0 tok/s |
| TTFT | 1040ms | 120381ms |
| Latency | 28959ms | 120381ms |
| Composite Indices | ||
| Value Score | 100.0 | 5.8 |
| Reasoning Score | 55.7 | 66.7 |
| Intelligence | 43.1 | 58.9 |
| Coding | 58.7 | 77.4 |
| Standard Benchmarks | ||
| GPQA | 90.5% | 94.1% |
| HLE | 33.5% | 47.2% |
| SciCode | 46.4% | 56.1% |
| LCR | 65.0% | 73.7% |
| IFBench | 71.3% | 72.7% |
| TAU-bench v2 | 94.2% | 85.1% |
| TerminalBench Hard | 41.7% | 65.9% |
Key Takeaways
V4 Pro (Reasoning, High Effort) offers the best value at $0.43/1M,making it ideal for high-volume applications and cost-conscious projects.
GPT-5.6 Sol (max) has the strongest reasoning profile with a 66.7 reasoning score,combining the available reasoning-heavy benchmarks.
GPT-5.6 Sol (max) reaches a 77.4 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
V4 Pro (Reasoning, High Effort)
- Cost-sensitive applications
- High-volume processing
GPT-5.6 Sol (max)
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
