API cost decision in 10 seconds

Seed-2.0-Lite vs Qwen3.5-27B

Pick Qwen3.5-27B when budget is the priority.

Page updated:  Data confirmed:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Qwen3.5-27B when budget is the priority.

On the standard 1M input plus 500K output workload, Qwen3.5-27B is estimated at $0.98 vs $1.25 for Seed-2.0-Lite, saving $0.27 (22% lower).

Cost-first pickQwen3.5-27B
Context-first pickBoth models
Sample savings$0.2722%
10x traffic gap$2.75

The reported context window is tied, so cost and provider fit carry more weight. At 10x that traffic, the same price gap is about $2.75. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Qwen3.5-27B stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickSeed-2.0-LiteQwen3.5-27B
Input-heavy / RAG5M input + 500K outputQwen3.5-27B$2.25$1.75
Balanced workload1M input + 1M outputQwen3.5-27B$2.25$1.76
Output-heavy chatbot1M input + 5M outputQwen3.5-27B$10.25$8
Cheaper input Qwen3.5-27B $0.25 vs $0.195 / 1M

Qwen3.5-27B is $0.05 cheaper per 1M input tokens (22% lower; 1.28x difference).

Cheaper output Qwen3.5-27B $2 vs $1.56 / 1M

Qwen3.5-27B is $0.44 cheaper per 1M output tokens (22% lower; 1.28x difference).

Larger context Tie 262.14K vs 262.14K

Both models report the same context window at 262.14K tokens.

Sample workload Qwen3.5-27B $1.25 vs $0.98

Qwen3.5-27B is $0.27 cheaper on the standard workload (22% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Seed-2.0-Lite Calculating… Estimated API cost
Qwen3.5-27B Calculating… Estimated API cost
Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

Qwen3.5-27B has the lower input price; Qwen3.5-27B has the lower output price; both models report the same context window. For the 1M input plus 500K output sample, Qwen3.5-27B is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $1.25 for Seed-2.0-Lite and $0.98 for Qwen3.5-27B.

Best Fit

Choose Seed-2.0-Lite when its provider, model quality, latency, or availability is more important than the numeric price/context winner.

Choose Qwen3.5-27B when you care most about lower input-token price, and lower output-token price.

Decision Notes
  • On the standard 1M input plus 500K output workload, Qwen3.5-27B is estimated at $0.98 vs $1.25 for Seed-2.0-Lite, saving $0.27 (22% lower).
  • Qwen3.5-27B is $0.27 cheaper on the standard workload (22% lower).
  • Qwen3.5-27B is $0.05 cheaper per 1M input tokens (22% lower; 1.28x difference).
  • Qwen3.5-27B is $0.44 cheaper per 1M output tokens (22% lower; 1.28x difference).
  • Both models report the same context window at 262.14K tokens.
Head-to-Head Specs
FeatureSeed-2.0-Lite
(ByteDance Seed)
Qwen3.5-27B
(Qwen)
Input Price
prompt tokens per 1M
$0.25$0.195
Completion Price
per 1M tokens
$2$1.56
Sample Workload Cost
1M input + 500K output
$1.25$0.98
Context Window262.14K262.14K
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionQwen3.5-27BOn the standard 1M input plus 500K output workload, Qwen3.5-27B is estimated at $0.98 vs $1.25 for Seed-2.0-Lite, saving $0.27 (22% lower).
High-volume input processingQwen3.5-27BLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsQwen3.5-27BLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workTieA larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

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Cheaper alternatives

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Larger context alternatives

Find models with larger context windows for RAG, long documents, and codebase review.

Open largest context models

Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

Open provider hubs

ByteDance Seed catalog

Review all tracked ByteDance Seed models before deciding whether this matchup is the right shortlist.

Open ByteDance Seed models

Qwen catalog

Check other Qwen models with comparable pricing, context, or release timing.

Open Qwen models
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