Nano Banana (Gemini 2.5 Flash Image)

google/gemini-2.5-flash-image

A chat model with a 33K-token context window, at $0.315 per million input tokens and $2.625 per million output tokens.

Details

Maker: google
Kind: Chat
Context window: 32,768 tokens
Max output: 65,535 tokens
Input: $0.315 per million tokens
Cached input: $0.0315 per million tokens, 90% off
Cache write: Same as input
Output: $2.625 per million tokens
Capabilities: Vision, web search, image generation
Takes: Text, image
Returns: Text, image
Zero data retention: Not on every provider
No training on requests: Yes, on every provider
Released: 2025-08-26
Newer model: google/gemini-3.7-flash-batchReleased later by the same maker, costs no more, and lists the same capabilities. Compare the two

Description

Nano Banana (Gemini 2.5 Flash Image) is Google's first fully hybrid reasoning model, letting developers turn thinking on or off and set thinking budgets to balance quality, cost, and latency. Upgraded for rapid creative workflows, it can generate interleaved text and images and supports conversational, multi‑turn image editing in natural language. It’s also locale‑aware, enabling culturally and linguistically appropriate image generation for audiences worldwide.

Call it

curl

curl https://phantom.codes/v1/chat/completions \
  -H "Authorization: Bearer $PHANTOM_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "google/gemini-2.5-flash-image",
    "messages": [
      {"role": "user", "content": "Hello"}
    ]
  }'

Set PHANTOM_KEY to your key. Any OpenAI client works with the base URL https://phantom.codes/v1.

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