whatmodel.sh / image / Nano Banana (Gemini 2.5 Flash Image)

Nano Banana (Gemini 2.5 Flash Image) is a closed-weights image model from Google, released August 2025. Licence: proprietary.

62.0±1.2#33 of 144 image modelsfrom 19 benchmark results across 16 sources

Score within the LMArena text-to-image comparison set only.

$ how it compares

The image models ranked either side of Nano Banana (Gemini 2.5 Flash Image), out of 197 with a score, then more from Google.

#modelscorewhereRAMreleased
37FLUX.2 [flex] Black Forest Labs62±2api $0.050/image2025-11
38HunyuanImage 3.0-Instruct Tencent62±3api $0.090/image +local~203GB2026-01
39Nano Banana (Gemini 2.5 Flash Image) Google62±1api $0.039/image2025-08
40Wan 2.7 Image Alibaba62±2api $0.030/image2026-04
41Imagen 4 Ultra Google61±2api $0.060/image2025-06
more from Google
5Nano Banana 2.1 Google81±2api $0.034/image2026-10
9Nano Banana 2 (Gemini 3.1 Flash Image) Google76±1api $0.067/image2026-02
10Nano Banana Pro (Gemini 3 Pro Image) Google76±1api $0.13/image2025-11

see all image models · find the ones that fit your machine

$ what it's good at

text to image▂▅▅▃▄▄█▃▁▂▁▁ #30 of 126 · 57% of its score · 7 tests

Beats Wan 2.7 Image Pro, Cosmos3-Super-Text2Image here, though they rank higher overall. Trails ERNIE-Image here, though they rank lower overall.

testresultvs the others in its rundifficultycountswhy
LMArena text-to-image1150.3 ✎▂▂▃▄▇█▄▂▄▂·▂ beats 45/75avg 1027▇▇▇▇▇▇▇▇▇ 22%typical
ServImage task acceptance (human payment decisions, commercial design tasks)29.9% ✎▂▃··▂··▃█··▂ beats 6/11hard · avg 18%▇▇▇▇ 10%sharp · at its level
GenExam (relaxed overall, GPT-5 judge)55.9% ✎▆▆·▂▃····▂▂█ beats 7/13hard · avg 20%▇▇▇ 8.7%sharp · at its level · noisy
T2I-ReasonBench (overall)89.5% ✎▅▂█▂▂▂····▂▃ beats 13/13easy · avg 69%▇▇▇ 7.0%typical
TIIF-Bench v3 (short prompts, TIIF-Evaluator)89.2% ✎▂█····▄▄▄··▂ beats 10/11easy · avg 79%▇▇ 5.4%typical
MMMG image generation (average over 15 tasks)65.4% ✎█··█▄▄·▄▄·▄▄ beats 8/9medium · avg 51%▇ 3.4%at its level
GenAI-Bench (VQAScore overall)79.0% ✎█···█·█····█ beats 1/3easy · avg 79%▇ 0.7%blunt
image to image / editing▁▁·▃▂▃█▃▃▄▁▁ #29 of 62 · 37% of its score · 8 tests

Beats FLUX.2 [flex] here, though they rank higher overall. Trails Kling Image O1, Wan 2.7 Image here, though they rank lower overall.

testresultvs the others in its rundifficultycountswhy
ServImage task acceptance (human payment decisions, commercial design tasks)29.9% ✎▂▃··▂··▃█··▂ beats 6/11hard · avg 18%▇▇▇▇ 10%sharp · at its level
Arena image edit1293.2 ✎▂▁▁▂▆▇█▄▆▅▁▂ beats 26/53avg 1153▇▇▇ 8.3%typical
CEdit-Bench-CN overall (G_O, GPT-4o judge)73.6% ✎▃·········█▂ beats 2/7medium · avg 42%▇▇ 5.3%sharp · noisy
GEBench GUI state generation (English GE-Score)52.1% ✎▄▄····▄▄█▄·█ beats 5/8hard · avg 34%▇▇ 4.2%at its level
CEdit-Bench-EN overall (G_O, GPT-4o judge)72.0% ✎▄·▄···▄██··▄ beats 2/7easy · avg 66%▇ 3.6%typical
UnicBench (EN, overall)78.8% ✎▂····▂▄▂▄·█▂ beats 9/11easy · avg 73%▇ 3.0%typical
CREval-Bench creative image editing (Overall, GPT-4o QA evaluator)81.3% ✎▄█▄··█··▄·▄▄ beats 7/8easy · avg 74%▇ 2.0%blunt
OmniContext average (GPT-4.1 judge)78.4% ✎▃▃▃··▃·····█ beats 5/6medium · avg 65%▇ 1.0%noisy
other tests5 not in a task · 15% of its score
testresultvs the others in its rundifficultycountswhy
InfoEdit infographic editing (average success rate)3.5% ✎▄··▄█····▄▄▄ beats 2/6very hard · avg 1.4%▇▇▇ 6.4%sharp · too hard for it
EdiVal multi-turn editing overall (EdiVal-O after turn 3)56.2% ✎▂·▂▃·▂·▃▂·▃█ beats 10/14medium · avg 42%▇ 3.1%blunt · at its level
PaintBench precise editing (mIoU, 20-task average)11.1% ✎▃·····█▅▃·▃▅ beats 7/9very hard · avg 4.3%▇ 2.2%too hard for it
VVRBench-Challenge accuracy (720 harder verifiable tasks)1.1% ✎▄·▄···█·▄▄·▄ beats 1/6very hard · avg 0.6%▇ 2.0%sharp · too hard for it
ViGoR-Bench zero-shot visual reasoning, image models (Result Avg)47.7% ✎▂···▂·▂█▆▅·▂ beats 14/15hard · avg 31%▇ 1.4%at its level

$ where to run it

Through an API

api · $0.039/image · ai.google.dev ↗ · price sourceGoogle Gemini Developer API Standard paid tier; up to 1024x1024 generated image output only. Input/text/thinking/tool charges additional. Scheduled shutdown 2026-10-02. Product: Gemini Developer API. API model: gemini-2.5-flash-image. Settings: tier=Standard paid, resolution=up to 1024x1024, batch=no, n=1. Price basis: provider-published approximate image OUTPUT cost. Additional/excluded charges: Input tokens, text/thinking output tokens and optional tools. Currency: USD.

$ how the score was worked out · LMArena leaderboard dataset 30%, ServImage: An Image Generatio… 10%, Meituan LongCat — LongCat-Ima… 9% and 13 more

Each result implies a score on its own, after adjusting for how hard its test is and who ran it. The score is their weighted average, with a small pull toward the middle for thinly tested models. Each test's weight is its counts column above; here it's added up by who ran the tests. How it works

sourceresultsshare of the scorelicence
LMArena leaderboard dataset2▇▇▇▇▇▇▇▇▇ 30%CC BY 4.0
ServImage: An Image Generation and Editing Benchmark from Real-world Commercial Imaging Services (arXiv:2604.24023v2)1▇▇▇ 10%CC-BY-4.0
Meituan LongCat — LongCat-Image technical report2▇▇▇ 9%CC BY 4.0
GenExam leaderboard (OpenGVLab/GenExam README, relaxed score)1▇▇▇ 9%MIT
T2I-ReasonBench: Benchmarking Reasoning-Informed Text-to-Image Generation (Findings of ACL 2026)1▇▇ 7%CC-BY-4.0
InfoEdit: Probing Global Layout Reasoning in Infographic Editing (arXiv:2609.33286v1)1▇▇ 6%CC-BY-4.0
TIIF-Bench: How Does Your T2I Model Follow Your Instructions? (arXiv v3)2▇▇ 6%CC-BY-4.0
GEBench: Benchmarking Image Generation Models as GUI Environments1▇ 4%CC-BY-4.0
MMMG: a Comprehensive and Reliable Benchmark for Multitask Multimodal Generation (arXiv:2505.17613v2)1▇ 3%CC-BY-4.0
EdiVal-Agent: An Object-Centric Framework for Automated, Fine-Grained Evaluation of Multi-Turn Editing (arXiv:2509.13399v3)1▇ 3%CC-BY-4.0
UnicEdit-10M: A Dataset and Benchmark Breaking the Scale-Quality Barrier via Unified Verification for Reasoning-Enriched Edits1▇ 3%CC-BY-4.0
PaintBench: Deterministic Evaluation of Precise Visual Editing (arXiv:2606.00188v1)1▇ 2%CC-BY-4.0
CREval: An Automated Interpretable Evaluation for Creative Image Manipulation under Complex Instructions (arXiv:2603.26174v1)1▇ 2%CC-BY-4.0
Verifiable Visual Rewards Transfer from Synthetic Scenes to Natural Prompts (VVRBench), arXiv:2609.35641v11▇ 2%CC-BY-4.0
ViGoR-Bench: How Far Are Visual Generative Models From Zero-Shot Visual Reasoners? (arXiv:2603.25823v1)1▇ 1%CC-BY-4.0
BAAI — OmniGen2 technical report1▇ 1%CC BY 4.0
prior · pull toward the middle▇ 1%
weighted average= 62.0

$ improve this page

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data updated · sources and licences · json