Compare

Seedance 2.5 vs Gemini 3.1 Pro

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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Seedance 2.5
bytedance/seedance-2.5
Gemini 3.1 Pro
google/gemini-3.1-pro
Provider
ByteDance
Google
Family
Gemini 3
Modality
video
text
Context window
1,000,000 tok
Max output
65,536 tok
Released
2026-08-07
2026-05-22
License
Open-weight
Proprietary
Input price
$2.00 /1M
Output price
$12.00 /1M
Cache read
$0.200 /1M
Per output second
$0.231 /sec
Tools
yes
Streaming
yes
Vision
yes
JSON mode
yes
Reasoning
yes
Prompt caching
yes
Batch API
Try it
View model →
Open in playground →
Seedance 2.5
bytedance/seedance-2.5
Full spec →

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.

Strengths
  • Text-to-video generation
Use cases
PromosDemosStoryboards
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

Benchmarks

Seedance 2.5
Gemini 3.1 Pro
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-K2.7-Code
google/gemini-3.1-pro · moonshot/kimi-k2.7-code
Grok 4.6 vs Gemini 3.1 Pro
xai/grok-4.6 · google/gemini-3.1-pro
Grok 4.6 vs Seedance 2.5
xai/grok-4.6 · bytedance/seedance-2.5
Claude Opus 5 vs Gemini 3.1 Pro
anthropic/claude-opus-5 · google/gemini-3.1-pro
Claude Opus 5 vs Seedance 2.5
anthropic/claude-opus-5 · bytedance/seedance-2.5
Qwen3.8 Max vs Gemini 3.1 Pro
alibaba/qwen3.8-max · google/gemini-3.1-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-...",
)

# Seedance 2.5
client.chat.completions.create(
    model="bytedance/seedance-2.5",
    messages=[{"role":"user","content":"hello"}],
)

# Gemini 3.1 Pro
client.chat.completions.create(
    model="google/gemini-3.1-pro",
    messages=[{"role":"user","content":"hello"}],
)
Get an AIgateway keyRun an eval on these →