API cost decision in 10 seconds

NewSolar Mini 4 vs Qwen3.8 27B

Pick Solar Mini 4 for lower cost; pick Qwen3.8 27B only if the larger context window matters more.

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

Budget verdict

Pick Solar Mini 4 for lower cost; pick Qwen3.8 27B only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Solar Mini 4 is estimated at $0.15 vs $1.92 for Qwen3.8 27B, saving $1.77 (92.2% lower).

Cost-first pickSolar Mini 4
Context-first pickQwen3.8 27B
Sample savings$1.7792.2%
10x traffic gap$17.7

Qwen3.8 27B has more context, but Solar Mini 4 saves $1.77 on the standard workload. At 10x that traffic, the same price gap is about $17.7. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Solar Mini 4 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickSolar Mini 4Qwen3.8 27B
Input-heavy / RAG5M input + 500K outputSolar Mini 4$0.35$3.6
Balanced workload1M input + 1M outputSolar Mini 4$0.25$3.42
Output-heavy chatbot1M input + 5M outputSolar Mini 4$1.05$15.42
Cheaper input Solar Mini 4 $0.05 vs $0.42 / 1M

Solar Mini 4 is $0.37 cheaper per 1M input tokens (88.1% lower; 8.4x difference).

Cheaper output Solar Mini 4 $0.2 vs $3 / 1M

Solar Mini 4 is $2.8 cheaper per 1M output tokens (93.3% lower; 15x difference).

Larger context Qwen3.8 27B 524.29K vs 1M

Qwen3.8 27B has 475.71K more context (1.91x larger).

Sample workload Solar Mini 4 $0.15 vs $1.92

Solar Mini 4 is $1.77 cheaper on the standard workload (92.2% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Solar Mini 4 Calculating… Estimated API cost
Qwen3.8 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

Solar Mini 4 has the lower input price; Solar Mini 4 has the lower output price; Qwen3.8 27B offers the larger context window. For the 1M input plus 500K output sample, Solar Mini 4 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.15 for Solar Mini 4 and $1.92 for Qwen3.8 27B.

Best Fit

Choose Solar Mini 4 when you care most about lower input-token price, and lower output-token price.

Choose Qwen3.8 27B when you care most about larger context window.

Decision Notes
  • On the standard 1M input plus 500K output workload, Solar Mini 4 is estimated at $0.15 vs $1.92 for Qwen3.8 27B, saving $1.77 (92.2% lower).
  • Solar Mini 4 is $1.77 cheaper on the standard workload (92.2% lower).
  • Solar Mini 4 is $0.37 cheaper per 1M input tokens (88.1% lower; 8.4x difference).
  • Solar Mini 4 is $2.8 cheaper per 1M output tokens (93.3% lower; 15x difference).
  • Qwen3.8 27B has 475.71K more context (1.91x larger).
Head-to-Head Specs
FeatureNewSolar Mini 4
(Upstage)
Qwen3.8 27B
(Qwen)
Input Price
prompt tokens per 1M
$0.05$0.42
Completion Price
per 1M tokens
$0.2$3
Sample Workload Cost
1M input + 500K output
$0.15$1.92
Context Window524.29K1M
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionSolar Mini 4On the standard 1M input plus 500K output workload, Solar Mini 4 is estimated at $0.15 vs $1.92 for Qwen3.8 27B, saving $1.77 (92.2% lower).
High-volume input processingSolar Mini 4Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsSolar Mini 4Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workQwen3.8 27BA larger context window leaves more room for retrieved passages, conversation history, or source files.

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Upstage catalog

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Qwen catalog

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Solar Mini 4

Solar Mini 4 is Upstage's compact, cost-efficient language model, a 35B-parameter mixture-of-experts with 3B active parameters and a 524K context window. It is built for agentic use cases where response...

Qwen3.8 27B

Qwen3.8 27B is an open-weight dense vision-language model from Qwen. It is suited for coding, professional workflows, research, multimodal interaction, and long-running agent tasks, with flexible thinking that can be...