Flux 2 flux-2-flex-remix-image API
Same API, same SDK — switch variants by changing one parameter.
# Works with Claude Code, Codex, Gemini CLI, Cursor, and 50+ agents
npx skills add runapi-ai/flux-2 -gInstall the Flux 2 skill for me: 1. Clone https://github.com/runapi-ai/flux-2 2. Copy the skills/flux-2/ directory into your user-level skills directory (e.g. ~/.claude/skills/ for Claude Code, ~/.codex/skills/ for Codex). 3. Verify that SKILL.md is present. 4. Confirm the install path when done.
flux-2-flex-remix-image targets the sweet spot of quality and cost within the Flux 2 family.
- Pay-per-call pricing in USD
- Failed generations not charged
- Streaming when supported by the model
- Schema-validated tool calls
Pricing
Technical details
| Model ID | flux-2-flex-remix-image |
| Provider | Black Forest Labs |
| Modality | image |
| Task type | asynchronous |
| Billing unit | call |
| API endpoint | /api/v1/flux_2/remix_image |
| Commercial license | Yes — included via API |
| Status | Operational |
Quickstart — flux-2-flex-remix-image
curl -X POST https://runapi.ai/api/v1/flux_2/remix_image \
-H "Authorization: Bearer $RUNAPI_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "flux-2-flex-remix-image",
"prompt": "Generate a photorealistic studio portrait of an astronaut holding a cat, dramatic rim lighting, 8K detail."
}'import { Flux2Client } from "@runapi.ai/flux-2";
const client = new Flux2Client();
const result = await client.remixImage.run({
model: "flux-2-flex-remix-image",
prompt: "Generate a photorealistic studio portrait of an astronaut holding a cat, dramatic rim lighting, 8K detail.",
});require "runapi/flux_2"
client = RunApi::Flux2::Client.new
result = client.remix_image.run(
model: "flux-2-flex-remix-image",
prompt: "Generate a photorealistic studio portrait of an astronaut holding a cat, dramatic rim lighting, 8K detail."
)Use flux-2-flex-remix-image in four steps
Install
Install the model SDK or agent skill for this model line.
Configure
Set the model field to the full model ID shown on this page.
Call
Send a typed request with your prompt, inputs, and callback settings.
Receive
Read the task response, webhook callback, or cached output URL from RunAPI.
What's different about flux-2-flex-remix-image
Flex control + reference image input
Adjustable steps + guidance; up to 10 ref images; best typography
Flex control + reference image input
Pro quality with input image as style/content seed
Flex control + reference image input
Zero-config flagship; automatic prompt enhancement
Best for
Product photography
Auto-generate lifestyle product photos for e-commerce catalogs that lack studio photography.
Game & concept art
Rapidly concept environments and characters before committing to final art.
Editorial illustration
Generate unique cover art and illustrations for blog posts and articles at scale.
Frequently asked questions about flux-2-flex-remix-image
Is the model ID stable across versions?
RunAPI keeps the model ID stable and handles compatible version refreshes without changing your request shape.
What's the rate limit on this variant?
Per-key rate limits scale with usage tier. See pricing page for current limits.
Can I switch variants later?
Yes — variant is a flag. Switch by changing the model parameter.
Does it stream?
Where streaming is available, RunAPI streams end-to-end.
Where do I report quality issues?
Open an issue on the public GitHub repo or email support.
Other variants of Flux 2
Alternatives from other models
Flux Kontext
Gemini Omni
GPT Image