compare/Flux-2-Klein-4bvsFlux

Flux-2-Klein-4b vs Flux

Pricing, context window, capabilities, and release date — pulled from each provider's public docs. Both are available via the same AIgateway OpenAI-compatible endpoint; flip the model string to switch.

RUN BOTH LIVE

Paste a prompt. Watch them race.

Both models stream in parallel through your own AIgateway key. Tokens, latency, and cost update as they arrive.

Sign in to runLive streaming uses your own key. It's free to sign up.
 Flux-2-Klein-4b
black-forest-labs/flux-2-klein-4b
Flux
deepgram/flux
ProviderBlack Forest LabsDeepgram
FamilyFLUXFLUX
Modalityimageaudio-stt
Context window
Max output
Released2026-01-142025-09-29
Input price$0.0012 /img$0.0077 /min
Output price
Cache read
Tools
Streaming
Vision
JSON mode
Reasoning
Prompt caching
Flux-2-Klein-4b
black-forest-labs/flux-2-klein-4b
Full spec →

FLUX.2 [klein] is an ultra-fast, distilled image model. It unifies image generation and editing in a single model, delivering state-of-the-art quality enabling interactive workflows, real-time previews, and latency-critical applications.

Strengths
  • Text-to-image generation
  • Creative control
Flux
deepgram/flux
Full spec →

Flux is the first conversational speech recognition model built specifically for voice agents.

Strengths
  • Speech-to-text transcription
SWITCH BETWEEN THEM

One key, both models, one line different.

# pip install aigateway-py openai
# aigateway-py: sub-accounts, evals, replays, jobs, webhook verify.
# openai SDK: chat/embeddings/images/audio — drop-in compat per our SDK's own guidance.
from openai import OpenAI

client = OpenAI(
    base_url="https://api.aigateway.sh/v1",
    api_key="sk-aig-...",
)

# Try Flux-2-Klein-4b
client.chat.completions.create(
    model="black-forest-labs/flux-2-klein-4b",
    messages=[{"role":"user","content":"hello"}],
)

# Try Flux — same client, same key
client.chat.completions.create(
    model="deepgram/flux",
    messages=[{"role":"user","content":"hello"}],
)
Get an AIgateway keyAdd a third model

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