Image generation (3-way)

GPT-Image-2 vs Nano Banana Pro vs Gathos: which one for what.

GPT-Image-2 launched on April 21, 2026 · four days ago. Nano Banana Pro is the LMArena leader. Gathos is the flat-rate option. Here is which one fits which job, with prices as of today.

TL;DR
  • Pick GPT-Image-2 if: you are deep in OpenAI infra, you need the latest text-in-image quality, and you have a per-image budget.
  • Pick Nano Banana Pro if: you are on Google Cloud / Vertex, you want LMArena-top quality, and your volume is low.
  • Pick Gathos if: you generate more than 130 images a month, want flat $18 billing, also need TTS, or run agent-driven workflows that need predictable cost surface.

Pricing, side-by-side

As of April 2026 (4 days post-launch for GPT-Image-2). Pulled from each product's public pricing page. We update this page quarterly.

Volume / propertyGPT-Image-2Nano Banana ProGathos
1,024×1,024 image$0.04$0.134$18 flat (any volume)
1,536×1,536$0.08 estimated$0.134$18 flat
4K (3,840×2,160)Not yet$0.24$18 flat
100 images / month$4$13.40$18
1,000 / month$40$134$18
10,000 / month$400$1,340$18 (fair-use window)
LMArena rank (Apr 2026)#3#1#7
Text-in-image qualityStrong (new model)StrongStrong (typography-tuned)
Voice / TTS bundledNoNoYes (600+ languages)

Feature matrix

FeatureGPT-Image-2Nano Banana ProGathos
Pricing modelPer-imagePer-imageFlat $18/month
SDK / APIOpenAI SDKGemini SDK + VertexREST + agent skills
Free tierOpenAI free trial creditsVertex free credits7 days unlimited
Best at very low volumeYes (cheapest per-image)No (expensive)No (flat $18)
Best at high volumeNo (per-image meter)No (per-image meter)Yes
Best at 4KNot yet supportedYes (paid)Yes (included)
Agent skillsOpenAI Custom GPTsGemini CLI SkillsPre-built skills for every major agent
Routing-friendlyYesYesYes

Why we recommend treating these as a 3-tier ladder, not a binary

"If you are starting from zero, the right move in April 2026 is not 'pick one'. It is 'pick by volume tier'. Under 100 images/month, GPT-Image-2 is the cheapest and the OpenAI flow is simplest. 100–500/month and you need top quality, Nano Banana Pro. 500+/month or you also need TTS, Gathos pays for itself in week one. Most agent-driven teams end up using two · one for bulk, one for hero shots · and the agent decides which to call based on the job tag."
— Synthesis of 6 founder interviews and a Discord poll, April 2026
Skills you can install
Video localizationPodcast growthYouTube creatorEcommerce workflow

Frequently asked questions

Is GPT-Image-2 actually new in April 2026?+
Yes, OpenAI released it on April 21, 2026. It replaces gpt-image-1. Pricing is roughly 30-50% lower per image than the previous model and quality on text-in-image and detail is meaningfully improved.
Why isn't there a clear winner?+
Because they price differently and excel at different volumes. GPT-Image-2 is cheapest per image. Nano Banana Pro is highest quality. Gathos is cheapest above 130 images/month. None is dominant across all three axes.
Should an agent route between them?+
Yes if you can afford the wiring time. A single agent skill can tag jobs as 'hero' or 'bulk' and pick the right backend. Gathos for bulk, GPT-Image-2 for hero, fall through to Nano Banana Pro for 4K. We see this pattern in Claude Code projects increasingly often.
Which one is the safest single-vendor choice for a startup?+
Gathos if predictable pricing matters more than absolute top quality. The flat $18 lets you ship without watching a meter. Most early startups burn more money on per-image surprises than on slightly-worse hero shots.
Does any of them do voice / TTS?+
No, GPT-Image-2 and Nano Banana Pro are image-only. Gathos bundles TTS and zero-shot voice cloning at the same flat price. If your product needs both, that's the differentiator.
What about text-to-video, like Veo 3 or Seedance?+
That is now the Creator-plan category. Pro remains image + TTS at $18/month. Creator is $45/month and adds text-to-video with generated audio, while keeping the same Gathos image and TTS APIs for the rest of the workflow.

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Gathos vs Veo 3

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