Model Comparison
GPT-5.6 Sol (max)
vs. Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback)
Comparing 2 AI models · 0 benchmarks · OpenAI, Anthropic
Recommended Pick
OpGPT-5.6 Sol (max)7 metric winsStrongest on: Value, Input price, Output price
Best Value
GPT-5.6 Sol (max)
100.0 value score
60.9 reasoning / $8.00/1M
Lowest Price
GPT-5.6 Sol (max)
$4.00/1M input price
Best Reasoning
Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback)
65.7 reasoning score
Blends available reasoning benchmarks
Best for Coding
Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback)
81.6 coding index
Differences That Matter
Best value
GPT-5.6 Sol (max) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
GPT-5.6 Sol (max) is 2.5x cheaper on input tokens than Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback).
Speed gap
GPT-5.6 Sol (max) generates about 1.1x as many tokens per second as Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback).
Reasoning gap
Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback) leads GPT-5.6 Sol (max) by 4.8 points on reasoning.
Coding gap
Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback) leads GPT-5.6 Sol (max) by 4.2 points on coding.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
GPT-5.6 Sol (max)
OpenAI
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Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback)
Anthropic
TTFT
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Which answer was more useful?
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Full Comparison
| Metric | Top Pick Op GPT-5.6 Sol (max) | An Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $4.00/1M | $10.00/1M |
| Output Cost | $20.00/1M | $50.00/1M |
| Blended (3:1) | $8.00/1M | $20.00/1M |
| Specifications | ||
| Organization | OpenAI | Anthropic |
| Release Date | Jul 9, 2026 | Sep 1, 2026 |
| Performance & Speed | ||
| Throughput | 72.5 tok/s | 66.5 tok/s |
| TTFT | 100850ms | 296810ms |
| Latency | 100850ms | 296810ms |
| Composite Indices | ||
| Value Score | 100.0 | 43.2 |
| Reasoning Score | 60.9 | 65.7 |
| Intelligence | 60.9 | 65.7 |
| Coding | 77.4 | 81.6 |
Key Takeaways
GPT-5.6 Sol (max) offers the best value at $4.00/1M,making it ideal for high-volume applications and cost-conscious projects.
Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback) has the strongest reasoning profile with a 65.7 reasoning score,combining the available reasoning-heavy benchmarks.
Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback) reaches a 81.6 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-5.6 Sol (max)
- Cost-sensitive applications
- High-volume processing
Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback)
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
