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.
Both models stream in parallel through your own AIgateway key. Tokens, latency, and cost update as they arrive.
| FLUX.2 [Max] black-forest-labs/flux-2-max | GPT-5.4 Mini openai/gpt-5.4-mini | |
|---|---|---|
| Provider | Black Forest Labs | OpenAI |
| Family | FLUX | GPT-5 |
| Modality | image | text |
| Context window | — | 128,000 tok |
| Max output | — | 16,384 tok |
| Released | 2026-05-27 | 2026-05-22 |
| Input price | $0.0000 /img | $0.750 /1M |
| Output price | — | $4.50 /1M |
| Cache read | — | $0.075 /1M |
| Tools | — | yes |
| Streaming | — | yes |
| Vision | — | yes |
| JSON mode | — | yes |
| Reasoning | — | yes |
| Prompt caching | — | yes |
FLUX.2 [max] is Black Forest Labs' highest-quality image model — top editing consistency, strongest prompt following, and grounding search for visualizations of real-time information.
GPT-5.4 mini is a smaller, faster, and more cost-efficient version of GPT-5.4 for lightweight tasks.
# 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 [Max]
client.chat.completions.create(
model="black-forest-labs/flux-2-max",
messages=[{"role":"user","content":"hello"}],
)
# Try GPT-5.4 Mini — same client, same key
client.chat.completions.create(
model="openai/gpt-5.4-mini",
messages=[{"role":"user","content":"hello"}],
)