Model Comparison
GPT-6 Astra (max)
vs. Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback)
Comparing 2 AI models · 0 benchmarks · OpenAI, Anthropic
Recommended Pick
OpGPT-6 Astra (max)3 metric winsStrongest on: Value, Reasoning, Intelligence
Best Value
GPT-6 Astra (max)
100.0 value score
54.7 reasoning / $20.00/1M
Lowest Price
GPT-6 Astra (max)
$10.00/1M input price
Best Reasoning
GPT-6 Astra (max)
54.7 reasoning score
Blends available reasoning benchmarks
Best for Coding
Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback)
80.7 coding index
Differences That Matter
Best value
GPT-6 Astra (max) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Reasoning gap
GPT-6 Astra (max) leads Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback) by 0.9 points on reasoning.
Coding gap
Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback) leads GPT-6 Astra (max) by 3.8 points on coding.
Top-pick rationale
GPT-6 Astra (max) wins 3 measurable categories, including Value, Reasoning, Intelligence.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
GPT-6 Astra (max)
OpenAI
TTFT
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Time
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Cost
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Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback)
Anthropic
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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OpenAI-compatible inference
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Full Comparison
| Metric | Top Pick Op GPT-6 Astra (max) | An Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $10.00/1M | $10.00/1M |
| Output Cost | $50.00/1M | $50.00/1M |
| Blended (3:1) | $20.00/1M | $20.00/1M |
| Specifications | ||
| Organization | OpenAI | Anthropic |
| Release Date | Sep 3, 2026 | Sep 1, 2026 |
| Performance & Speed | ||
| Throughput | — | 68.5 tok/s |
| TTFT | — | 130210ms |
| Latency | — | 130210ms |
| Composite Indices | ||
| Value Score | 100.0 | 98.4 |
| Reasoning Score | 54.7 | 53.8 |
| Intelligence | 54.7 | 53.8 |
| Coding | 76.9 | 80.7 |
Key Takeaways
GPT-6 Astra (max) offers the best value at $10.00/1M,making it ideal for high-volume applications and cost-conscious projects.
GPT-6 Astra (max) has the strongest reasoning profile with a 54.7 reasoning score,combining the available reasoning-heavy benchmarks.
Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback) reaches a 80.7 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-6 Astra (max)
- Cost-sensitive applications
- High-volume processing
- Complex reasoning tasks
- Research & analysis
Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback)
- Code generation
- Software development
