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.
| GLM-5.2 zai-org/glm-5.2 | Seedance 2.5 bytedance/seedance-2.5 | |
|---|---|---|
| Provider | Zai-org | ByteDance |
| Family | ||
| Modality | text | video |
| Context window | 262,144 tok | — |
| Max output | 131,072 tok | — |
| Released | 2026-07-01 | 2026-08-07 |
| Input price | $1.40 /1M | $0.231 /sec |
| Output price | $4.40 /1M | — |
| Cache read | — | — |
| Tools | yes | — |
| Streaming | yes | — |
| Vision | — | — |
| JSON mode | yes | — |
| Reasoning | yes | — |
| Prompt caching | — | — |
Z.ai's flagship agentic coding model
ByteDance's next-generation video model with a unified multimodal reference-to-video architecture. Generates video from text, up to 30 reference images, 10 reference videos, and 10 reference audio clips — including audio-only input with no image or video required. Supports first/last-frame image-to-video, video editing, video extension, intelligent duration (including automatic selection), and adaptive aspect ratio.
# 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 GLM-5.2
client.chat.completions.create(
model="zai-org/glm-5.2",
messages=[{"role":"user","content":"hello"}],
)
# Try Seedance 2.5 — same client, same key
client.chat.completions.create(
model="bytedance/seedance-2.5",
messages=[{"role":"user","content":"hello"}],
)