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.
| GPT-5.5 Pro openai/gpt-5.5-pro | Grok Imagine Video xai/grok-imagine-video | |
|---|---|---|
| Provider | OpenAI | xAI |
| Family | GPT-5 | |
| Modality | text | video |
| Context window | 1,000,000 tok | — |
| Max output | 16,384 tok | — |
| Released | 2026-05-22 | 2026-05-22 |
| Input price | $30.00 /1M | $0.050 /sec |
| Output price | $180.00 /1M | — |
| Cache read | — | — |
| Tools | yes | — |
| Streaming | yes | — |
| Vision | — | — |
| JSON mode | yes | — |
| Reasoning | yes | — |
| Prompt caching | — | — |
GPT-5.5 pro uses OpenAI's Responses API with built-in tools, improved reasoning, and stateful context management.
xAI's video generation model. Generates, edits, and extends videos from text and image inputs with native synchronized audio including dialogue, sound effects, and music. Supports multiple creative modes (normal, fun, custom).
# 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 GPT-5.5 Pro
client.chat.completions.create(
model="openai/gpt-5.5-pro",
messages=[{"role":"user","content":"hello"}],
)
# Try Grok Imagine Video — same client, same key
client.chat.completions.create(
model="xai/grok-imagine-video",
messages=[{"role":"user","content":"hello"}],
)