AI Desk · Model Identity · Compare
Google: Nano Banana 2 (Gemini 3.1 Flash Image) · NVIDIA: Nemotron 3.5 Content Safety (free)
Identity similarity: lowDivergent fingerprints · 21/44These models tokenise differently. Divergence on the high-information strings (CJK, emoji, digits) separates unrelated vocabularies within a handful of samples.
Google: Nano Banana 2 (Gemini 3.1 Flash Image) recordNVIDIA: Nemotron 3.5 Content Safety (free) recordOpen in the interactive bench
Tokenizer fingerprint
21 of 44 mutually clean strings agree| Test string | Google: Nano Banana 2 (Gemini 3.1 Flash Image) | NVIDIA: Nemotron 3.5 Content Safety (free) | Verdict |
|---|---|---|---|
| en-prose | x | 14 | – |
| en-long | 16 | 15 | differs |
| spaces-20 | x | 2 | – |
| spaces-60 | x | 2 | – |
| tabs-20 | 3 | 2 | differs |
| newlines-20 | 3 | 2 | differs |
| mixed-ws | 9 | 2 | differs |
| digits-9 | 9 | 10 | differs |
| digits-12 | 12 | 13 | differs |
| digits-30 | 30 | 31 | differs |
| digits-sep | 12 | 13 | differs |
| float-long | 22 | 23 | differs |
| zh-common | 10 | 11 | differs |
| zh-long | 12 | 14 | differs |
| zh-rare | 25 | 26 | differs |
| ja-kana | 7 | 7 | match |
| ja-kanji | 9 | 10 | differs |
| ko | 11 | 11 | match |
| ru | 12 | 12 | match |
| ar | 10 | 9 | differs |
| he | 13 | 12 | differs |
| hi | 8 | 8 | match |
| th | 10 | 10 | match |
| el | 13 | 13 | match |
| emoji-basic | 5 | 5 | match |
| emoji-skin | 10 | 10 | match |
| emoji-zwj-family | x | 8 | – |
| emoji-zwj-x3 | x | 22 | – |
| emoji-flags | 8 | 9 | differs |
| emoji-prof | x | 12 | – |
| math | 26 | 26 | match |
| boxdraw | 17 | 18 | differs |
| combining | 10 | 10 | match |
| cjk-ext-b | 16 | 17 | differs |
| surrogates | 27 | 28 | differs |
| zalgo | 22 | 22 | match |
| rtl-mix | 5 | 5 | match |
| py-code | 28 | 26 | differs |
| py-indent | 18 | 12 | differs |
| json | 28 | 28 | match |
| html | 14 | 14 | match |
| regex | 44 | 44 | match |
| camel | 6 | 6 | match |
| snake | 11 | 11 | match |
| rare-word-x5 | 25 | 25 | match |
| repeat-tok | 21 | 20 | differs |
| base64 | 34 | 34 | match |
| hex | 16 | 16 | match |
| url | 23 | 23 | match |
| uuid | 36 | 37 | differs |
Values are the marginal prompt-token cost of each string with the model's fixed overhead subtracted. An x marks a row excluded as corrupt for that model.
API surface
The declared serving contracts differ| Field | Google: Nano Banana 2 (Gemini 3.1 Flash Image) | NVIDIA: Nemotron 3.5 Content Safety (free) | Verdict |
|---|---|---|---|
| Context length | 131072 | 128000 | × differs |
| Max output tokens | 32768 | 8192 | × differs |
| Supported parameters | include_reasoning, max_tokens, reasoning, reasoning_effort, response_format, seed, structured_outputs, temperature, top_p | include_reasoning, max_tokens, reasoning, seed, temperature, top_p | × differs |
| Defaults | {} | {"temperature":null,"top_p":null,"top_k":null,"frequency_penalty":null,"presence_penalty":null,"repetition_penalty":null} | × differs |
| Reasoning contract | {"mandatory":false,"default_enabled":true,"supported_efforts":["high","minimal"],"default_effort":"minimal"} | {"mandatory":false,"default_enabled":true} | × differs |
| Modalities | text+image->text+image | text+image->text | × differs |
Method: tokenizer fingerprinting, v1, 50 strings. This page is static and dated; the interactive bench compares any two of the 486 catalogue models.