API cost decision in 10 seconds

NewPareto 26.10 Preview vs Solar Mini 4

Pick Solar Mini 4 for lower cost; pick Pareto 26.10 Preview only if the larger context window matters more.

Page updated: 2026-10-01T15:08:22Z Data confirmed: 2026-10-15T01:07:46Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Solar Mini 4 for lower cost; pick Pareto 26.10 Preview 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 $2.4 for Pareto 26.10 Preview, saving $2.25 (93.8% lower).

Cost-first pickSolar Mini 4

Context-first pickPareto 26.10 Preview

Sample savings$2.2593.8%

10x traffic gap$22.5

Pareto 26.10 Preview has more context, but Solar Mini 4 saves $2.25 on the standard workload. At 10x that traffic, the same price gap is about $22.5. 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 shape	Token mix	Better pick	Pareto 26.10 Preview	Solar Mini 4
Input-heavy / RAG	5M input + 500K output	Solar Mini 4	$5.6	$0.35
Balanced workload	1M input + 1M output	Solar Mini 4	$4	$0.25
Output-heavy chatbot	1M input + 5M output	Solar Mini 4	$16.8	$1.05

Cheaper input Solar Mini 4 $0.8 vs $0.05 / 1M

Solar Mini 4 is $0.75 cheaper per 1M input tokens (93.8% lower; 16x difference).

Cheaper output Solar Mini 4 $3.2 vs $0.2 / 1M

Solar Mini 4 is $3 cheaper per 1M output tokens (93.8% lower; 16x difference).

Larger context Pareto 26.10 Preview 1.05M vs 524.29K

Pareto 26.10 Preview has 524.29K more context (2x larger).

Sample workload Solar Mini 4 $2.4 vs $0.15

Solar Mini 4 is $2.25 cheaper on the standard workload (93.8% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Pareto 26.10 Preview Calculating… Estimated API cost

Solar Mini 4 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; Pareto 26.10 Preview 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 $2.4 for Pareto 26.10 Preview and $0.15 for Solar Mini 4.

Best Fit

Choose Pareto 26.10 Preview when you care most about larger context window.

Choose Solar Mini 4 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, Solar Mini 4 is estimated at $0.15 vs $2.4 for Pareto 26.10 Preview, saving $2.25 (93.8% lower).
Solar Mini 4 is $2.25 cheaper on the standard workload (93.8% lower).
Solar Mini 4 is $0.75 cheaper per 1M input tokens (93.8% lower; 16x difference).
Solar Mini 4 is $3 cheaper per 1M output tokens (93.8% lower; 16x difference).
Pareto 26.10 Preview has 524.29K more context (2x larger).

Head-to-Head Specs

Feature	NewPareto 26.10 Preview (unbiased)	Solar Mini 4 (Upstage)
Input Price prompt tokens per 1M	$0.8	$0.05
Completion Price per 1M tokens	$3.2	$0.2
Sample Workload Cost 1M input + 500K output	$2.4	$0.15
Context Window	1.05M	524.29K
Release Date	2026-10-01	2026-09-23

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Solar Mini 4	On the standard 1M input plus 500K output workload, Solar Mini 4 is estimated at $0.15 vs $2.4 for Pareto 26.10 Preview, saving $2.25 (93.8% lower).
High-volume input processing	Solar Mini 4	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Solar Mini 4	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Pareto 26.10 Preview	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

No lower-cost same-provider swap is currently tracked for this pair.

Larger context near this budget

Grok 4.20 Multi-Agent offers 2M context with $2.5 sample workload cost.
Grok 4.20 offers 2M context with $2.5 sample workload cost.
Llama 4 Scout offers 1.31M context with $0.47 sample workload cost.
MiMo-V2.6-Flash offers 1.05M context with $0.28 sample workload cost.

Popular competitors

DeepSeek V4.1 Flash · DeepSeek · #1
Step 5 Preview · StepFun · #2
GLM 5.3 Flash · Z.ai · #3
MiMo-V2.6-Flash · Xiaomi · #4

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

unbiased catalog

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

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Upstage catalog

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

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Pareto 26.10 Preview

Pareto is a multimodal composite model built for research, coding, and agentic workflows, while delivering frontier-level performance across a broad range of general-purpose tasks. This is a preview of the...

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...