compare/DeepSeek V4 ProvsSeedance 2.5

DeepSeek V4 Pro vs Seedance 2.5

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.

RUN BOTH LIVE

Paste a prompt. Watch them race.

Both models stream in parallel through your own AIgateway key. Tokens, latency, and cost update as they arrive.

Sign in to runLive streaming uses your own key. It's free to sign up.
 DeepSeek V4 Pro
deepseek/deepseek-v4-pro
Seedance 2.5
bytedance/seedance-2.5
ProviderDeepseekByteDance
FamilyDeepSeek
Modalitytextvideo
Context window131,072 tok
Max output32,768 tok
Released2026-08-032026-08-07
Input price$2.40 /1M$0.231 /sec
Output price$4.80 /1M
Cache read
Toolsyes
Streamingyes
Vision
JSON modeyes
Reasoningyes
Prompt caching
DeepSeek V4 Pro
deepseek/deepseek-v4-pro
Full spec →

DeepSeek V4 Pro is a high-capability reasoning model from DeepSeek, served via Fireworks infrastructure for production-grade inference.

Strengths
  • General-purpose chat
  • Long context
  • Tool use
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
SWITCH BETWEEN THEM

One key, both models, one line different.

# 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 DeepSeek V4 Pro
client.chat.completions.create(
    model="deepseek/deepseek-v4-pro",
    messages=[{"role":"user","content":"hello"}],
)

# Try Seedance 2.5 — same client, same key
client.chat.completions.create(
    model="bytedance/seedance-2.5",
    messages=[{"role":"user","content":"hello"}],
)
Get an AIgateway keyAdd a third model

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