The short answer: they win on different jobs
Nano Banana and Flux are both production-grade image model families, but they are not interchangeable — the honest answer depends on which version you mean and what job you are doing. Nano Banana Pro (Google) wins text rendering, world knowledge, and reasoning-heavy prompts; Flux (Black Forest Labs) wins speed, cost per image, and open weights for local deployment.
A note on version mismatch, because it is the biggest source of confusion in this comparison: “Nano Banana vs Flux” without a version is not a well-defined question. Google’s family spans the original Nano Banana, Nano Banana 2, Nano Banana 2 Lite, and Nano Banana Pro; Black Forest Labs’ family spans FLUX1.1 [pro]/[ultra], FLUX.1 Kontext, and the FLUX.2 line ([pro]/[flex]/[max]/[dev]). Most comparisons online quietly pit only Nano Banana Pro against FLUX.2 — which is why the results keep flip-flopping between “wiped the floor” and “almost the same”.
This is published by Modellix, an API aggregator that carries the Nano Banana family. One honesty note up front: as of August 24, 2026, we do not carry Flux on our platform (verified against our live model list on that date), so the Flux route in this article is direct-to-BFL. The numbers below come from official pricing pages and our own price table, all accessed on August 24, 2026, and we say plainly where each side wins and loses.
Nano Banana vs Flux at a glance
| Dimension | Nano Banana (Google) | Flux (Black Forest Labs) |
|---|---|---|
| Developer | Google DeepMind (Gemini models) | Black Forest Labs (German AI startup) |
| Architecture | Gemini foundation models, reasoning-grounded | Rectified-flow transformer; FLUX.2 adds a vision-language model for world knowledge (per third-party teardowns) |
| Text rendering | Best-in-class (Nano Banana Pro is the current benchmark) | Very good — FLUX.2 [flex]/[max] handle complex typography reliably |
| World knowledge | Grounded via Google Search on Pro/2 | Training-data + VLM only, no live search |
| Character consistency | Up to 5 people across generations (NB 2/Pro) | Up to 10 reference images (FLUX.2) |
| Max output | 4K (NB Pro, NB 2) | 4 megapixels (FLUX.2) |
| Speed | Slower (reasoning pipeline) | Sub-10 seconds at 2K (FLUX.2 Pro) |
| Open weights | No | Yes (FLUX.2 [dev], FLUX.1 [dev] — non-commercial) |
| Entry API price (official, Aug 24 2026) | $0.0336/image (1K, NB 2 Lite) | $0.04/image (FLUX1.1 pro) / from $0.014/MP (FLUX.2 klein) |
The version map: which Nano Banana, which Flux
The two families as of August 2026. Each version is a distinct model with different pricing, speed, and capabilities — “Nano Banana vs Flux” without a version is not a well-defined question.
The two families as of August 2026. The versions people actually compare in production (Nano Banana Pro vs FLUX.2) are only one pair among many.
Nano Banana family (Google):
- Nano Banana (original) — Gemini 2.5 Flash Image, released August 26, 2025. Fast and light; the model most older articles test.
- Nano Banana 2 — Gemini 3.1 Flash Image. Adds thinking modes, web search grounding, character consistency for up to 5 people, extreme aspect ratios.
- Nano Banana 2 Lite — Gemini 3.1 Flash Lite Image. The budget tier, priced below the original.
- Nano Banana Pro — Gemini 3 Pro Image, released late November 2025. Highest fidelity and text accuracy; blends up to 14 reference images; the current benchmark for legible in-image text.
Flux family (Black Forest Labs):
- FLUX1.1 [pro] — the standard text-to-image endpoint since late 2024; still one of the most-used image APIs in production.
- FLUX1.1 [pro] Ultra — ultra-high-resolution variant of 1.1.
- FLUX.1 Kontext — released May 29, 2025; the first widely adopted edit-by-instruction model, famous for inpainting that leaves the rest of the image untouched.
- FLUX.2 [pro]/[flex] — released late November 2025, the current generation; up to 4MP output, up to 10 reference images, sub-10-second generation.
- FLUX.2 [max] — the highest-quality variant of FLUX.2, with search grounding.
- FLUX.2 [dev] — open-weight variant (non-commercial license), downloadable for local deployment.
- FLUX.2 [klein] — the small/fast tier for real-time, high-volume work.
For the rest of this article, “Nano Banana” and “Flux” mean the families, and we name the specific version whenever a claim only holds for one of them.
Text rendering and world knowledge
This is where the consensus is clearest, and it matches the pattern across every independent test we reviewed: Nano Banana Pro is the current benchmark for text inside images. Logos, product labels, infographics, posters — Pro renders character-level correct typography more reliably than any Flux version, including across non-Latin scripts (independent tests show it winning multilingual poster tests against FLUX.2 Max on Japanese typography). FLUX.2 closed much of the gap — Black Forest Labs advertises “production-ready text” for complex typography and UI mockups, and in Vidguru’s 10-test benchmark FLUX.2 Max actually won the infographic test outright. But when the text itself is the deliverable — a poster, a label, a diagram — Nano Banana Pro is the safer pick.
World knowledge is the bigger gap. Nano Banana Pro and 2 can ground generation in Google Search, so prompts about real facts (“an infographic about the Tokyo Tower with accurate annotations”) come back correct; FLUX.2 has no live search — its world knowledge comes from training data plus a visual language model, and independent tests show it generating plausible-looking but wrong schematics where Pro returns accurate ones. If your workload involves real-world facts, precise counts, or complex scene logic (“a dog swimming will displace the water and make the waterline uneven”), that reasoning is exactly what Nano Banana’s thinking pipeline handles and what diffusion-only models still miss.
Character consistency is close to a tie. Nano Banana 2/Pro hold a consistent character identity across generations without fine-tuning (up to 5 people). FLUX.2 supports up to 10 reference images for consistent character and style — Black Forest Labs claims it is the “best character consistency available today”, and independent multi-scene tests rate both “very consistent”. For brand mascots and campaign series, either works; Nano Banana wins on prompt-only consistency, FLUX.2 wins when you have a strong reference library to feed it.
Speed, cost, and open weights
This is Flux’s territory, and the advantages are real.
Speed. FLUX.2 generates images in roughly a tenth of Nano Banana Pro’s wall-clock time in independent tests — Overchat’s comparison measured FLUX.2 at about one-tenth the time, and BFL advertises sub-10-second generation for FLUX.2 Pro at 2K. Nano Banana Pro’s reasoning pipeline is the reason it is slower, and the reason it is smarter about complex prompts. If your workflow is iterative — dozens of drafts before a keeper — that speed difference changes the economics of exploration.
Cost. At official API prices (verified August 24, 2026, full table in the next section), Flux is cheaper at every tier: FLUX1.1 [pro] at $0.04/image versus Nano Banana Pro at $0.134 per 1K–2K image is roughly a 3× gap, and FLUX.2 [klein] starts at $0.014 per megapixel. For high-volume pipelines this dominates the decision.
Open weights. FLUX.2 [dev] and the FLUX.1 [dev] weights are downloadable; you can run them locally with ComfyUI, fine-tune them, and keep data on your own hardware (the [dev] license is non-commercial — check the BFL licensing terms before building a product on it). Nano Banana has no open weights at all. This is the entire reason the “Nano Banana Pro local” search exists — if you need on-premises generation or fine-tuning, only Flux can do it.
One more honest note on the aesthetics dimension: independent tests describe FLUX.2 as aesthetic-first (painterly, cinematic, strong atmosphere) and Nano Banana Pro as logic-first. On plain photorealism both are excellent and tests largely tie — the aesthetic gap matters most for editorial and marketing imagery where Flux’s look is a feature, not a bug.
Pricing: official API prices, verified August 24, 2026
Pricing is where most online comparisons go stale — every top result we reviewed quoted platform tokens or credits instead of API prices. Here are the current published numbers from the official sources, plus our own price table. All values accessed August 24, 2026.
Google official (Gemini API pricing page):
| Model | Official price |
|---|---|
| Nano Banana (original, Gemini 2.5 Flash Image, 1K) | $0.039/image |
| Nano Banana 2 (Gemini 3.1 Flash Image) | $0.045/0.5K · $0.067/1K · $0.101/2K · $0.151/4K |
| Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) | $0.0336/1K |
| Nano Banana Pro (Gemini 3 Pro Image) | $0.134/1K–2K · $0.24/4K |
Source: Gemini API pricing, accessed August 24, 2026.
Black Forest Labs official (BFL API pricing docs):
| Model | Official price |
|---|---|
| FLUX1.1 [pro] | $0.04/image |
| FLUX1.1 [pro] Ultra | $0.06/image |
| FLUX.1 Kontext [pro] / [max] | $0.04 / $0.08 per image |
| FLUX.2 [klein] 4B / 9B | from $0.014 / $0.015 per MP |
| FLUX.2 [pro] | from $0.03 per MP (text-to-image) |
| FLUX.2 [flex] | from $0.05 per MP |
| FLUX.2 [max] | from $0.07 per MP |
| FLUX.2 [dev] | open weights, no hosted API (local only) |
Source: BFL API pricing, accessed August 24, 2026. MP = megapixel (1,048,576 pixels).
BFL API pricing documentation, captured August 24, 2026. FLUX.2 is billed per megapixel; FLUX.1 models per image.
Modellix prices for the Nano Banana family (our price table, accessed August 24, 2026):
| Model on Modellix | Modellix price |
|---|---|
google/nano-banana |
$0.0336/img |
google/nano-banana-2 |
$0.0403–$0.1248/img |
google/nano-banana-2-lite |
$0.0274/img |
google/nano-banana-pro |
$0.1265–$0.2093/img |
Modellix model page for google/nano-banana-pro, captured August 24, 2026. Per-image price is displayed next to the model description.
What this means at scale: a team generating 10,000 images per month at 1K would pay roughly $1,340 on Nano Banana Pro’s official low end, $1,265 on our low end, $400 on FLUX1.1 [pro], and $300 on FLUX.2 [pro] (at 1MP). The gap is not small — and it grows with volume. For a wider view of the cheapest routes across providers, see our cheapest AI API guide.
Two honesty notes on prices. First, official per-image prices depend on resolution tier and aggregators add their own margin, so the same model can legitimately cost different amounts on different routes — always check current pricing before budgeting. Second, we deliberately did not put a Modellix price on Flux in the table above: as of August 24, 2026, Flux is not on our roster, and pretending otherwise would make this article worse.
How to access each family: direct API or aggregator
Nano Banana, direct from Google. The family runs on the Gemini API, available through Google AI Studio and Vertex AI, plus the consumer Gemini app. Direct access means one Google contract, Google’s docs, and Google’s billing — with per-image prices from the table above.
Nano Banana, through Modellix. One API key and one billing dashboard for the whole family (original, 2, 2 Lite, Pro, and the edit variants), alongside the other 200+ image/video/audio models we carry. You trade a little margin for not maintaining separate vendor integrations. If you already know Nano Banana is your model, Nano Banana Pro is a good place to start — and if you want the full picture of what one-key access looks like, our unified AI API explainer covers it.
Flux, direct from Black Forest Labs — because that is currently the only route that works for it. Flux runs on the BFL API (dashboard at dashboard.bfl.ai, pricing in the table above) and the BFL Playground, the [dev] weights are on Hugging Face, and FLUX.2 [dev] can run locally in ComfyUI. We want to be straight with you here: Modellix does not carry Flux as of August 24, 2026 — we verified this against our live model list while writing. So if your project is Flux-based, the direct BFL route (or another platform that hosts Flux) is the honest answer, and we are not going to pretend a one-key shortcut exists where it doesn’t. If you need deep Nano Banana API guidance, our Nano Banana Pro API guide walks through it, and our Flux Kontext API article covers the one Flux-era model we have documented on the blog.
There is also the consumer middle path: Gemini app for Nano Banana, BFL Playground for Flux, and platforms that bundle both behind subscriptions. Those are fine for individual use but rarely the right billing shape for production workloads.
When to pick Nano Banana — and when to pick Flux
Pick Nano Banana when:
- In-image text accuracy is non-negotiable (logos, labels, infographics, posters, multilingual typography)
- Prompts involve real-world facts, counts, or scene logic that need reasoning, not just diffusion
- You need character consistency across a series without a reference library
- You are already on Google Cloud / Vertex AI and want the same contract
Pick Flux when:
- Speed per iteration matters — FLUX.2 generates in roughly a tenth of Pro’s time
- Cost per image at volume is the primary constraint — Flux undercuts Nano Banana at every tier
- You need open weights for local deployment, fine-tuning, or data control (FLUX.2 [dev], non-commercial license)
- You want the painterly/cinematic aesthetic for editorial or marketing assets
- You have a strong reference library and want 10-image multi-reference control
And the honest middle answer: many teams run both — Flux for drafts, volume, and exploration; Nano Banana Pro for text-heavy, logic-heavy, brand-critical finals. If you need neither’s unique features, pick purely on price, and that is Flux.
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LoginWhat Modellix doesn’t fix (honest limitations)
Since we are the ones writing this, the limitations of our route deserve equal space:
- We don’t carry Flux — today. Our roster is verified live at modellix.ai/models; it includes the Nano Banana family but not Black Forest Labs’ models as of August 24, 2026. If a Flux-based project is what you’re building, we are not the route, and we said so above.
- An aggregator does not change the model. If Nano Banana Pro’s $0.24/4K official price is too high for your budget, our margin does not make the model cheaper than its official bands — we add a layer, we don’t subsidize it.
- We are not always the cheapest route. Direct Google pricing and our price table both exist; compare them for your resolution mix before committing. We win on one-key convenience, not on being the lowest price for every model.
- We don’t set vendor limits. Rate limits, resolution tiers, and availability ultimately come from Google. If a vendor restricts a model, the restriction applies to us too.
Bottom line
Nano Banana and Flux are both production-grade image model families, and the choice is a job-fit decision, not a quality verdict. Nano Banana Pro wins text fidelity, world knowledge, and reasoning; Flux wins speed, cost, and open weights. The version map matters more than the family name, and the access route matters almost as much as the model — especially because one of these families (Flux) currently requires the direct route. If you want one API to run Nano Banana and the other 200+ models we carry, with transparent per-call pricing, try Modellix with the free trial credit and A/B your own prompts. That is the only way to make the call that actually matters: which model produces better results for your workload.
FAQ
Is Nano Banana Pro better than Flux?
It depends on the job. Nano Banana Pro is better for in-image text accuracy, world knowledge, reasoning-heavy prompts, and multilingual typography. Flux (FLUX.2, or the cheaper FLUX1.1 line) is better for speed, cost per image, open weights, and the painterly aesthetic. Neither family beats the other across all dimensions — that is why online comparisons keep contradicting each other.
Which AI is better than Nano Banana?
Per dimension: Flux undercuts Nano Banana on speed and cost and offers open weights; Seedream undercuts it on cost per image and native resolution; but for text rendering and character consistency across generations, Nano Banana Pro is still the current benchmark — that consensus holds across independent comparisons and our own API testing.
Is there anything better than Nano Banana?
For legible text inside images and prompt-only character consistency, no — Nano Banana Pro is the benchmark. For cost, speed, or local deployment, yes: the Flux family beats it on those specific dimensions, as does Seedream at the low-cost end. “Better” only makes sense per dimension.
Is Nano Banana the best image generator?
Not as a blanket statement. It is the best at text rendering and world-knowledge-grounded generation; it is not the cheapest, not the fastest, and not open-source. Pick by job, not by crown.
What about Nano Banana vs Midjourney?
That is a different comparison: Midjourney is a consumer subscription product with no first-party API, aimed at creatives, while Nano Banana is an API-first model family aimed at developers. If you are building an integration, Nano Banana (or Flux) is the relevant comparison — see our Nano Banana vs Midjourney article if you need that one.
Disclosure: this comparison is published by Modellix, an API aggregator that carries the Nano Banana family and the other 200+ image/video models on our platform. We do not currently carry Flux (verified August 24, 2026), which is why the Flux route here is direct-to-BFL. Prices were verified on August 24, 2026 against the official Gemini API pricing page, the official BFL API pricing documentation, and our own price table; model pricing and availability change often — always check current pricing before budgeting. We are not affiliated with Google DeepMind or Black Forest Labs.
