Claude Fable 5.5 (Leaked Checkpoint) vs Nano Banana 3 Pro
A direct, empirical evaluation of Claude Fable 5.5 (Leaked Checkpoint) (Anthropic) against Nano Banana 3 Pro (Google DeepMind).
Claude Fable 5.5 (Leaked Checkpoint)
Developed by Anthropic · Proprietary Frontier Dynamic Reasoner parameters
Terminal-Bench 4.0 autonomous shell execution (78.5% target), recursive self-critique, and 1.5M-token repository refactoring.
Nano Banana 3 Pro
Developed by Google DeepMind · 2.8 Billion Parameters parameters
Zero-latency mobile on-device reasoning, 82ms TTFT, offline audio-visual tool execution, and local Android system integration.
| Metric | Claude Fable 5.5 (Leaked Checkpoint) | Nano Banana 3 Pro |
|---|---|---|
| SWE-bench Verified | 84.2% | 58.6% |
| MMLU-Pro | 94.6% | 74.2% |
| MATH-500 | 98.4% | 82.5% |
| Context Window | 1,500,000 tokens | 131,072 tokens |
| Input Pricing (per 1M) | $3.50 | $0.00 |
| Output Pricing (per 1M) | $17.50 | $0.00 |