Side by side
Seed 1.6 vs Qwen3.5 Plus 2026-04-20
Source: OpenRouter (live)
Live figures
The numbers
Best value in each row is highlighted. “Not declared” means the provider does not advertise the feature on its listing.
| Attribute | ||
|---|---|---|
| Input priceUSD per 1M tokens | $0.25 (best) | $0.30 |
| Output priceUSD per 1M tokens | $2.00 | $1.80 (best) |
| Blended price75% in / 25% out | $0.69 | $0.67 (best) |
| Vs. market median | 14% cheaper | 16% cheaper |
| Value rankcheapest = 1 | #184 | #181 (best) |
| Context windowtokens | 262K | 1M (best) |
| Max outputtokens | 33K | 66K (best) |
| Input modalities | image, text, video | text, image, video |
| Output modalities | text | text |
| Tool calling | Declared | Declared |
| Reasoning | Declared | Declared |
| Structured output | Declared | Declared |
| Listed on OpenRouter | 2025-12-23 | 2026-04-27 (best) |
Blended price assumes a 3:1 input-to-output token mix. Median is across all 417 priced models.
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What the numbers say
- Qwen: Qwen3.5 Plus 2026-04-20 is the cheapest here at $0.67/M blended — 1.0× less than ByteDance Seed: Seed 1.6.
- Qwen: Qwen3.5 Plus 2026-04-20 offers the largest context window (1M tokens) versus 262K for ByteDance Seed: Seed 1.6.
Models
Model pages
Full pricing history, capabilities and alternatives for each model in this comparison.
Bytedance Seed
$0.688
/M blended
Qwen (Alibaba)
$0.675
/M blended
More comparisons
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- Gemini vs GPT-5: Google's flagship against OpenAI's
Gemini's very long context and multimodal input against GPT-5's ecosystem and pricing.
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