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.
| Bytedance Seedance 2.0 (Text To Video) bytedance/seedance-2.0 | Qwen 3.5 397B A17B alibaba/qwen3.5-397b-a17b | |
|---|---|---|
| Provider | ByteDance | Alibaba |
| Family | Qwen | |
| Modality | video | text |
| Context window | — | 262,144 tok |
| Max output | — | 4,096 tok |
| Released | 2026-05-17 | 2026-04-15 |
| Input price | $0.014 /sec | $0.600 /1M |
| Output price | — | $3.60 /1M |
| Cache read | — | — |
| Tools | — | yes |
| Streaming | — | yes |
| Vision | — | — |
| JSON mode | — | yes |
| Reasoning | — | yes |
| Prompt caching | — | — |
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.
Alibaba's Qwen 3.5 is a 397B-parameter mixture-of-experts model with 17B active parameters, offering strong reasoning capabilities with efficient inference.
# 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 Bytedance Seedance 2.0 (Text To Video)
client.chat.completions.create(
model="bytedance/seedance-2.0",
messages=[{"role":"user","content":"hello"}],
)
# Try Qwen 3.5 397B A17B — same client, same key
client.chat.completions.create(
model="alibaba/qwen3.5-397b-a17b",
messages=[{"role":"user","content":"hello"}],
)