Compare

Qwen 3.5 397B A17B vs Seedream 5 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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Qwen 3.5 397B A17B
alibaba/qwen3.5-397b-a17b
Seedream 5 Pro
bytedance/seedream-5-pro
Provider
Alibaba
ByteDance
Family
Qwen
Seedream
Modality
text
image
Context window
262,144 tok
Max output
32,768 tok
Released
2026-05-22
2026-07-23
License
Open-weight
Proprietary
Input price
$0.600 /1M
Output price
$3.60 /1M
Per image
$0.045 /img
Tools
yes
Streaming
yes
Vision
JSON mode
yes
Reasoning
yes
Prompt caching
Batch API
Try it
Open in playground →
View model →
Qwen 3.5 397B A17B
alibaba/qwen3.5-397b-a17b
Full spec →

Alibaba's Qwen 3.5 is a 397B-parameter mixture-of-experts model with 17B active parameters, offering strong reasoning capabilities with efficient inference.

Strengths
  • MoE efficiency: 17B active of 397B
  • Strong reasoning at low cost
  • 262k context
Use cases
Production chatMulti-lingualCost-sensitive reasoning
Seedream 5 Pro
bytedance/seedream-5-pro
Full spec →

Seedream 5 Pro is ByteDance's high-quality image generation and editing model with text prompts, up to 10 reference images, and 1K, 2K, or explicit pixel-size output controls.

Strengths
  • Text-to-image generation
  • Creative control
Use cases
Marketing assetsProduct mockupsConcept art

Compare with another

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anthropic/claude-opus-5 · bytedance/seedream-5-pro
Claude Opus 5 vs Qwen 3.5 397B A17B
anthropic/claude-opus-5 · alibaba/qwen3.5-397b-a17b
Grok 4.5 vs Seedream 5 Pro
xai/grok-4.5 · bytedance/seedream-5-pro
Grok 4.5 vs Qwen 3.5 397B A17B
xai/grok-4.5 · alibaba/qwen3.5-397b-a17b
Kimi K3 vs Seedream 5 Pro
moonshot/kimi-k3 · bytedance/seedream-5-pro
Kimi K3 vs Qwen 3.5 397B A17B
moonshot/kimi-k3 · alibaba/qwen3.5-397b-a17b
Gemini 3.6 Flash vs Seedream 5 Pro
google/gemini-3.6-flash · bytedance/seedream-5-pro
Gemini 3.6 Flash vs Qwen 3.5 397B A17B
google/gemini-3.6-flash · alibaba/qwen3.5-397b-a17b
GPT-5.6 Sol vs Seedream 5 Pro
openai/gpt-5.6-sol · bytedance/seedream-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-...",
)

# Qwen 3.5 397B A17B
client.chat.completions.create(
    model="alibaba/qwen3.5-397b-a17b",
    messages=[{"role":"user","content":"hello"}],
)

# Seedream 5 Pro
client.chat.completions.create(
    model="bytedance/seedream-5-pro",
    messages=[{"role":"user","content":"hello"}],
)
Get an AIgateway keyRun an eval on these →