Pricing per million tokens, context window, capabilities — pulled from each provider's public docs. All 2 are available via the same AIgateway OpenAI-compatible endpoint; flip the model string to switch.
ByteDance's next-generation video model with a unified multimodal architecture. Generates high-quality video with synchronized audio from text, images, video clips, and audio inputs. Supports multimodal references (up to 9 images, 3 videos, 3 audio files), native audio generation, video editing, video extension, intelligent duration, and adaptive aspect ratio.
GPT-5.5 is OpenAI's flagship model with strong coding, reasoning, and multimodal capabilities.
from openai import OpenAI
client = OpenAI(
base_url="https://api.aigateway.sh/v1",
api_key="sk-aig-...",
)
# Bytedance Seedance 2.0 (Text To Video)
client.chat.completions.create(
model="bytedance/seedance-2.0",
messages=[{"role":"user","content":"hello"}],
)
# GPT-5.5
client.chat.completions.create(
model="openai/gpt-5.5",
messages=[{"role":"user","content":"hello"}],
)