Compare

Gemini 3.1 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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Gemini 3.1 Pro
google/gemini-3.1-pro
Grok Imagine Video
xai/grok-imagine-video
Provider
Google
xAI
Family
Gemini 3
Modality
text
video
Context window
1,000,000 tok
Max output
65,536 tok
Released
2026-05-22
2026-05-22
License
Proprietary
Proprietary
Input price
$2.00 /1M
Output price
$12.00 /1M
Cache read
$0.200 /1M
Per output second
$0.050 /sec
Tools
yes
Streaming
yes
Vision
yes
JSON mode
yes
Reasoning
yes
Prompt caching
yes
Batch API
Try it
Open in playground →
Open in playground →
Gemini 3.1 Pro
google/gemini-3.1-pro
Full spec →

Google's most intelligent Gemini model with improved reasoning, a medium thinking level, and a 1M token context window.

Strengths
  • 2M-token context
  • Native video + audio input
  • Cheapest long-context reasoning
Use cases
Video understandingVery long-document RAGCodebase-scale reasoning
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

Benchmarks

Gemini 3.1 Pro
Grok Imagine Video
Long-Context
94.2
MMLU
89.6

Source: each provider's published benchmarks. Higher is better. Run an eval to compare on your own data.

Compare with another

Gemini 3.1 Pro vs Claude Opus 4.7
google/gemini-3.1-pro · anthropic/claude-opus-4.7
GPT-5.4 vs Gemini 3.1 Pro
openai/gpt-5.4 · google/gemini-3.1-pro
Claude Sonnet 4.6 vs Gemini 3.1 Pro
anthropic/claude-sonnet-4.6 · google/gemini-3.1-pro
Gemini 3.1 Pro vs Kimi-K2.6
google/gemini-3.1-pro · moonshot/kimi-k2.6
Claude Opus 4.8 vs Gemini 3.1 Pro
anthropic/claude-opus-4.8 · google/gemini-3.1-pro
Claude Opus 4.8 vs Grok Imagine Video
anthropic/claude-opus-4.8 · xai/grok-imagine-video
Claude Sonnet 4.6 vs Grok Imagine Video
anthropic/claude-sonnet-4.6 · xai/grok-imagine-video
Grok 4.20 Multi-Agent vs Gemini 3.1 Pro
xai/grok-4.20-multi-agent-0309 · google/gemini-3.1-pro
Grok 4.20 Multi-Agent vs Grok Imagine Video
xai/grok-4.20-multi-agent-0309 · xai/grok-imagine-video
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-...",
)

# Gemini 3.1 Pro
client.chat.completions.create(
    model="google/gemini-3.1-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 →