Model Comparison
Gemini 3 Flash Preview (Reasoning)
vs. Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback)
Comparing 2 AI models · 0 benchmarks · Google, Anthropic
Recommended Pick
GoGemini 3 Flash Preview (Reasoning)7 metric winsStrongest on: Value, Input price, Output price
Best Value
Gemini 3 Flash Preview (Reasoning)
100.0 value score
30.7 reasoning / $1.13/1M
Lowest Price
Gemini 3 Flash Preview (Reasoning)
$0.50/1M input price
Best Reasoning
Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback)
56.8 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
Gemini 3 Flash Preview (Reasoning) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
Gemini 3 Flash Preview (Reasoning) is 20x cheaper on input tokens than Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback).
Speed gap
Gemini 3 Flash Preview (Reasoning) generates about 3.1x 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 Gemini 3 Flash Preview (Reasoning) by 26.1 points on reasoning.
Top-pick rationale
Gemini 3 Flash Preview (Reasoning) wins 7 measurable categories, including Value, Input price, Output price, Blended price.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Gemini 3 Flash Preview (Reasoning)
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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 Go Gemini 3 Flash Preview (Reasoning) | An Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.50/1M | $10.00/1M |
| Output Cost | $3.00/1M | $50.00/1M |
| Blended (3:1) | $1.13/1M | $20.00/1M |
| Specifications | ||
| Organization | Anthropic | |
| Release Date | Dec 17, 2025 | Sep 1, 2026 |
| Performance & Speed | ||
| Throughput | 214.5 tok/s | 68.2 tok/s |
| TTFT | 5840ms | 276820ms |
| Latency | 5840ms | 276820ms |
| Composite Indices | ||
| Value Score | 100.0 | 10.4 |
| Reasoning Score | 30.7 | 56.8 |
| Intelligence | 30.7 | 56.8 |
| Coding | — | 81.6 |
Key Takeaways
Gemini 3 Flash Preview (Reasoning) offers the best value at $0.50/1M,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 56.8 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
Gemini 3 Flash Preview (Reasoning)
- 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
