Nano Banana 2 Litevs.HiDream-O1-Image-1.5

Which one is better?

In our own test both are on par. HiDream-O1-Image-1.5 has no arena rating yet. HiDream-O1-Image-1.5 costs 2.4 times as much per image.

Test images

Same task, the first image of each. The task with the biggest difference is preselected.

Nano Banana 2 Lite: Product photography, first image from the fixed test run — Nano Banana 2 Lite87 out of 100

HiDream-O1-Image-1.5: Product photography, first image from the fixed test run — HiDream-O1-Image-1.551 out of 100

Result for “Product photography”:Nano Banana 2 Lite ahead

Prompt given to both modelsCreate a square premium product photograph of a brushed titanium wristwatch standing upright on dark green marble. The watch has a cream dial, thin black hands set to 10:10, twelve distinct hour markers, a realistic crown, and a dark brown leather strap. Soft window light from the left, controlled reflections, shallow depth of field, no text, no logo, no extra objects.

What the rating looks at: Materials, reflections, and fine details.

“Ahead”: better in all three rating rounds. “Slightly ahead”: a higher value, but not in every round.

Test protocol of the images

Each test attempt uses the same archived prompt and one request. The first output of that attempt counts. Repeats after technical test failures are disclosed for the affected images. Files are normalized to 1,024 × 1,024 pixels without cropping. Provider resolution, randomness, quality tier and prompt processing can still differ. The images are a practical visual test, not a reconstruction of the arena configuration.

Character and detail

Nano Banana 2 Lite: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 12:21 PM. Source

HiDream-O1-Image-1.5: manual, one request, first output, HiDream O1 Image 1.5, 1:1, 2K, n=1, no reference image, no negative prompt, Vivago web, 2 free credits, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Aug 16, 2026, 1:07 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6

Nano Banana 2 Lite image SHA 256: 6c7d17b2a84129cbeba7d52c8de703773e9296562d9d603688256d2717e65a0c

HiDream-O1-Image-1.5 image SHA 256: 99db95d2f6f00dc7f8872b5562b7577a49065a120d15fc54f687ba624fe4cf6e

Infographic

Nano Banana 2 Lite: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 12:21 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: ed65cb4e6a51e2336f8b149ad4cbb16e020f07d527ad94362e719d2dcf91d94f

Nano Banana 2 Lite image SHA 256: 11d8b5ddf15becefa6e4e32fca21729ff7d57f561a10e3a2b4b6f5c7a0aed6ef

HiDream-O1-Image-1.5 image SHA 256: 073d00d82d82a05c20f9117a18e71e21fe0300fd9f4985608be09726b1ee70a8

Product photography

Nano Banana 2 Lite: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 12:21 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3

Nano Banana 2 Lite image SHA 256: 30d9b09b92917eca84675448260a083ad368d9ea25376dabccac0f526f3a3ab7

HiDream-O1-Image-1.5 image SHA 256: 98de28b81a3551441936ce2ebcc0b418e69e9d5cf6ce8b1dc281bc90b05731dc

Typography and layout

Nano Banana 2 Lite: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 2:00 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419

Nano Banana 2 Lite image SHA 256: 9fab80fe1ad268b9ceceb4ef61ef1dd0e965dd3f28d377af7cf9cf201fdf47fa

HiDream-O1-Image-1.5 image SHA 256: db5acbc9b443ea381bf6294997720fa246cf8a199f91d451aa1d7242fc4a348a

The numbers at a glance

Arena ratingfrom votes by users · higher is better

1,249

Nano Banana 2 Lite

Rank 11 of 21

n/a

HiDream-O1-Image-1.5

not in the arena

GraduallyBenchour own rating, 0 to 100 · higher is better

Nano Banana 2 Lite

Rank 21 of 108

HiDream-O1-Image-1.5

Rank 38 of 108

Price per imagedollars through the API · lower is better

$0.034

Nano Banana 2 Lite

fairly cheap

$0.08

HiDream-O1-Image-1.5

fairly expensive

Ranks among the 21 image models with an arena rating and the 108 with a GraduallyBench run; prices compared with 28 models with an API price.

Nano Banana 2 Lite

Subscription: Free to use at Google (Google AI Free, with limited credits), more from €4.99 a month (Google AI Plus, with limited credits). Through other providers from ≈ €6.36 a month (ElevenLabs Starter, with limited credits). 51 plans in Germany.
Via API: $0.034 per image, 100 images $3.36.

HiDream-O1-Image-1.5

Subscription: n/a No plan in Germany names exactly this model.
Via API: $0.08 per image, 100 images $8.

Subscriptions only count plans that name exactly this model. Subscription prices include VAT, API prices are in dollars.

Arena rating (LMArena) from Nov 6, 2026 · GraduallyBench from Nov 3, 2026 · API prices from Nov 6, 2026 · Subscription database from Sep 29, 2026 (38 days old)

All data side by side

The better value is bold. For ratings only when the gap is clear.

Kennzahl	Nano Banana 2 Lite	HiDream-O1-Image-1.5
Ratings
Arena ratingfrom votes by users, higher is better	1,249	n/a
Arena rank	Rank 11 of 21	n/a
Arena votesmore votes, a safer rating	17,787	n/a
GraduallyBenchour own rating, 0 to 100	71	65
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition	82	76
Product photographyMaterials, reflections, and fine details	87	51
Character and detailAnatomy, clothing, and spatial consistency	47	58
InfographicNumbers, labels, and visual organization	66	76
API price
Per imagelower is better	$0.034	$0.08
100 images	$3.36	$8
Profile
Released	June 2026	June 2026
Weightsopen means: runs locally	proprietary	proprietary
Access	API, Web app	API, Web app
Parameters	not published	not published
Largest output	1K	2,048 × 2,048 pixels
Plans in Germanynaming exactly this model	51	n/a

API prices for one image at 1,024 × 1,024 pixels according to Artificial Analysis.

Sources: Nano Banana 2 Lite model source (verified Aug 15, 2026) · HiDream-O1-Image-1.5 model source (verified Sep 22, 2026)

Arena ratings by category

From blind votes on LMArena. “Ahead” means the lead is clear.

Arena rating per categoryfrom votes by users · higher is betterNano Banana 2 LiteHiDream-O1-Image-1.5

Text to Image Arena1,1091,018ahead

Artificial Analysis from Nov 6, 2026

All individual values with sources

Rating	Nano Banana 2 Lite	HiDream-O1-Image-1.5	Source
Text to Image Arena	1,109	1,018	Artificial AnalysisRetrieved Nov 6, 2026

More comparisons

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