Gemini model

Gemini 3 PRO Image API

The model id is gemini/gemini-3-pro-image. This is Gemini 3 PRO Image from provider Gemini. It is billed per generated image at $0.3144 per image.

Read quickstartEstimate cost
GeminiPlatform curatedCatalog
Image GenerationThinkingVision
Image price$0.314 / image
BillingPer generated image
Context length— tokens
Max output8.2k tokens

What is Gemini 3 PRO Image API in NextModel?

The model id is gemini/gemini-3-pro-image. This is Gemini 3 PRO Image from provider Gemini. It is billed per generated image at $0.3144 per image.

Gemini 3 Pro Image (Nano Banana Pro) via NextModel: context unpublished; $0.314 / image in / — out per 1M tokens. Capabilities: streaming, vision.

Best use cases

  • Call this id for vision tasks that accept per-image billing and do not require a published context window.
  • The 1000-3000ms latency band is a concrete operating range.
  • You need the listed capabilities on this catalog entry.

When not to use

  • Do not call this id if you need token-based pricing, a published context window, or first-party CacheSafety numbers.
  • All of those values are unpublished for this id.
  • The absence of CacheSafety means no Safe Hit, Bad Hit, or trap rate is available.

OpenAI-compatible code example

request.sh
curl https://api.nextmodel.app/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $NEXTMODEL_API_KEY" \
  -d '{"model":"gemini/gemini-3-pro-image","messages":[{"role":"user","content":"Reply with OK."}]}'

Switching models only changes the model field.

Try it in the playground

Similar alternatives

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Gemini 3.1 Flash Image (Nano Banana 2) via NextModel: context unpublished; $0.151 / image in / — out per 1M tokens. Capabilities: streaming, vision.

$0.151 / imagePer image—Context
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Gemini 3.1 Flash Lite Image(Nano Banana 2 Lite)

Gemini 3.1 Flash Lite Image(Nano Banana 2 Lite) via NextModel: context unpublished; $0.0336 / image in / — out per 1M tokens. Capabilities: streaming, vision.

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Claude Haiku 4.5

Claude Haiku 4.5 via NextModel: 200k-token context; $1 / 1M tokens in / $5 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

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Best forimage understanding, multimodal chat
StreamingTool callingJSON modeVision
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Compare Gemini 3 Pro Image (Nano Banana Pro)

Gemini 3 Pro Image (Nano Banana Pro) vs Gemini 3.1 Flash Image (Nano Banana 2)Gemini 3 Pro Image (Nano Banana Pro) vs Gemini 3.1 Flash Lite Image(Nano Banana 2 Lite)Gemini 3 Pro Image (Nano Banana Pro) vs Claude Haiku 4.5Gemini 3 Pro Image (Nano Banana Pro) vs Claude Sonnet 4.5Gemini 3 Pro Image (Nano Banana Pro) vs FLUX.2 Flex

Reading

Articles that explain Gemini 3 Pro Image (Nano Banana Pro)

FAQ

Gemini 3 Pro Image (Nano Banana Pro) API questions

What model id do I send for Gemini 3 PRO Image?

Send gemini/gemini-3-pro-image to https://api.nextmodel.app/v1 with your OpenAI SDK. If that id is missing from /v1/models, the page is stale.

What does the catalog list for price and context?

Gemini 3 PRO Image is listed at unpublished input and unpublished output. Context window: not published in catalog.

What should I treat as unverified?

Do not call this id if you need token-based pricing, a published context window, or first-party CacheSafety numbers. All of those values are unpublished for this id.

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