API cost decision in 10 seconds

NewSolar Mini 4 vs DeepSeek V4 Flash Latest

Pick Solar Mini 4 for lower cost; pick DeepSeek V4 Flash Latest 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 DeepSeek V4 Flash Latest 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 $0.31 for DeepSeek V4 Flash Latest, saving $0.16 (52.1% lower).

Cost-first pickSolar Mini 4
Context-first pickDeepSeek V4 Flash Latest
Sample savings$0.1652.1%
10x traffic gap$1.63

DeepSeek V4 Flash Latest has more context, but Solar Mini 4 saves $0.16 on the standard workload. At 10x that traffic, the same price gap is about $1.63. 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 4DeepSeek V4 Flash Latest
Input-heavy / RAG5M input + 500K outputSolar Mini 4$0.35$0.47
Balanced workload1M input + 1M outputSolar Mini 4$0.25$0.59
Output-heavy chatbot1M input + 5M outputSolar Mini 4$1.05$2.79
Cheaper input DeepSeek V4 Flash Latest $0.05 vs $0.038 / 1M

DeepSeek V4 Flash Latest is $0.01 cheaper per 1M input tokens (24% lower; 1.32x difference).

Cheaper output Solar Mini 4 $0.2 vs $0.55 / 1M

Solar Mini 4 is $0.35 cheaper per 1M output tokens (63.6% lower; 2.75x difference).

Larger context DeepSeek V4 Flash Latest 524.29K vs 1.31M

DeepSeek V4 Flash Latest has 786.43K more context (2.5x larger).

Sample workload Solar Mini 4 $0.15 vs $0.31

Solar Mini 4 is $0.16 cheaper on the standard workload (52.1% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Solar Mini 4 Calculating… Estimated API cost
DeepSeek V4 Flash Latest 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

DeepSeek V4 Flash Latest has the lower input price; Solar Mini 4 has the lower output price; DeepSeek V4 Flash Latest 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 $0.31 for DeepSeek V4 Flash Latest.

Best Fit

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

Choose DeepSeek V4 Flash Latest when you care most about lower input-token price, and larger context window.

Decision Notes
  • On the standard 1M input plus 500K output workload, Solar Mini 4 is estimated at $0.15 vs $0.31 for DeepSeek V4 Flash Latest, saving $0.16 (52.1% lower).
  • Solar Mini 4 is $0.16 cheaper on the standard workload (52.1% lower).
  • DeepSeek V4 Flash Latest is $0.01 cheaper per 1M input tokens (24% lower; 1.32x difference).
  • Solar Mini 4 is $0.35 cheaper per 1M output tokens (63.6% lower; 2.75x difference).
  • DeepSeek V4 Flash Latest has 786.43K more context (2.5x larger).
Head-to-Head Specs
FeatureNewSolar Mini 4
(Upstage)
DeepSeek V4 Flash Latest
(DeepSeek)
Input Price
prompt tokens per 1M
$0.05$0.038
Completion Price
per 1M tokens
$0.2$0.55
Sample Workload Cost
1M input + 500K output
$0.15$0.31
Context Window524.29K1.31M
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 $0.31 for DeepSeek V4 Flash Latest, saving $0.16 (52.1% lower).
High-volume input processingDeepSeek V4 Flash LatestLower 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 workDeepSeek V4 Flash LatestA larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Larger context near this budget
  • No larger-context model is currently tracked within a close sample-cost band.

Cheaper alternatives

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Larger context alternatives

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Provider catalogs

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

Open provider hubs

Upstage catalog

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

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DeepSeek catalog

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

Open DeepSeek models
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...

DeepSeek V4 Flash Latest

This model always redirects to the latest model in the DeepSeek V4 Flash family.