Compare

Gemini 3.1 Pro vs Grok Imagine Video 1.5 Preview

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 1.5 Preview
xai/grok-imagine-video-1.5-preview
Provider
Google
xAI
Family
Gemini 3
Modality
text
video
Context window
1,000,000 tok
Max output
65,536 tok
Released
2026-05-22
2026-06-03
License
Proprietary
Proprietary
Input price
$2.00 /1M
Output price
$12.00 /1M
Cache read
$0.200 /1M
Per output second
$0.080 /sec
Tools
yes
Streaming
yes
Vision
yes
JSON mode
yes
Reasoning
yes
Prompt caching
yes
Batch API
Try it
Open in playground →
View model →
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 1.5 Preview
xai/grok-imagine-video-1.5-preview
Full spec →

xAI's next-generation video generation model. Generates, edits, and extends videos from text and image inputs. Supports multiple aspect ratios and resolutions with improved quality over the previous generation.

Strengths
  • Text-to-video generation
Use cases
PromosDemosStoryboards

Benchmarks

Gemini 3.1 Pro
Grok Imagine Video 1.5 Preview
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
Gemini 3.1 Pro vs GPT-5.4
google/gemini-3.1-pro · openai/gpt-5.4
Gemini 3.1 Pro vs Claude Sonnet 4.6
google/gemini-3.1-pro · anthropic/claude-sonnet-4.6
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 1.5 Preview
anthropic/claude-opus-4.8 · xai/grok-imagine-video-1.5-preview
MiniMax M3 vs Gemini 3.1 Pro
minimax/m3 · google/gemini-3.1-pro
MiniMax M3 vs Grok Imagine Video 1.5 Preview
minimax/m3 · xai/grok-imagine-video-1.5-preview
Gemini 3.1 Pro vs GPT-5.5
google/gemini-3.1-pro · openai/gpt-5.5
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 1.5 Preview
client.chat.completions.create(
    model="xai/grok-imagine-video-1.5-preview",
    messages=[{"role":"user","content":"hello"}],
)
Get an AIgateway keyRun an eval on these →