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GPT-5.5 Pro vs Grok Imagine Video

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.

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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
License
Proprietary
Proprietary
Input price
$30.00 /1M
Output price
$180.00 /1M
Per output second
$0.050 /sec
Tools
yes
Streaming
yes
Vision
JSON mode
yes
Reasoning
yes
Prompt caching
Batch API
Try it
Open in playground →
Open in playground →
GPT-5.5 Pro
openai/gpt-5.5-pro
Full spec →

GPT-5.5 pro uses OpenAI's Responses API with built-in tools, improved reasoning, and stateful context management.

Strengths
  • General-purpose chat
  • Long context
  • Tool use
Use cases
ChatbotsContent generationAgentic workflows
Grok Imagine Video
xai/grok-imagine-video
Full spec →

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).

Strengths
  • Text-to-video generation
Use cases
PromosDemosStoryboards

Compare with another

Claude Opus 4.8 vs GPT-5.5 Pro
anthropic/claude-opus-4.8 · openai/gpt-5.5-pro
Claude Opus 4.8 vs Grok Imagine Video
anthropic/claude-opus-4.8 · xai/grok-imagine-video
Claude Sonnet 4.6 vs GPT-5.5 Pro
anthropic/claude-sonnet-4.6 · openai/gpt-5.5-pro
Claude Sonnet 4.6 vs Grok Imagine Video
anthropic/claude-sonnet-4.6 · xai/grok-imagine-video
Grok 4.20 Multi-Agent vs GPT-5.5 Pro
xai/grok-4.20-multi-agent-0309 · openai/gpt-5.5-pro
Grok 4.20 Multi-Agent vs Grok Imagine Video
xai/grok-4.20-multi-agent-0309 · xai/grok-imagine-video
GPT-5.4 vs GPT-5.5 Pro
openai/gpt-5.4 · openai/gpt-5.5-pro
GPT-5.4 vs Grok Imagine Video
openai/gpt-5.4 · xai/grok-imagine-video
Gemini 2.5 Pro vs GPT-5.5 Pro
google/gemini-2.5-pro · openai/gpt-5.5-pro
SWITCH BETWEEN THEM

One key, all 2, one line different.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.aigateway.sh/v1",
    api_key="sk-aig-...",
)

# GPT-5.5 Pro
client.chat.completions.create(
    model="openai/gpt-5.5-pro",
    messages=[{"role":"user","content":"hello"}],
)

# Grok Imagine Video
client.chat.completions.create(
    model="xai/grok-imagine-video",
    messages=[{"role":"user","content":"hello"}],
)
Get an AIgateway keyRun an eval on these →