API cost decision in 10 seconds

NewMistral Large 4 vs Aion 3.5 Mini

Pick Aion 3.5 Mini for lower cost; pick Mistral Large 4 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 Aion 3.5 Mini for lower cost; pick Mistral Large 4 only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Aion 3.5 Mini is estimated at $1.4 vs $1.73 for Mistral Large 4, saving $0.33 (18.8% lower).

Cost-first pickAion 3.5 Mini
Context-first pickMistral Large 4
Sample savings$0.3318.8%
10x traffic gap$3.25

Mistral Large 4 has more context, but Aion 3.5 Mini saves $0.33 on the standard workload. At 10x that traffic, the same price gap is about $3.25. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Aion 3.5 Mini stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickMistral Large 4Aion 3.5 Mini
Input-heavy / RAG5M input + 500K outputAion 3.5 Mini$4.45$4.2
Balanced workload1M input + 1M outputAion 3.5 Mini$2.77$2.1
Output-heavy chatbot1M input + 5M outputAion 3.5 Mini$11.13$7.7
Cheaper input Mistral Large 4 $0.68 vs $0.7 / 1M

Mistral Large 4 is $0.02 cheaper per 1M input tokens (2.9% lower; 1.03x difference).

Cheaper output Aion 3.5 Mini $2.09 vs $1.4 / 1M

Aion 3.5 Mini is $0.69 cheaper per 1M output tokens (33% lower; 1.49x difference).

Larger context Mistral Large 4 1.05M vs 262.14K

Mistral Large 4 has 786.43K more context (4x larger).

Sample workload Aion 3.5 Mini $1.73 vs $1.4

Aion 3.5 Mini is $0.33 cheaper on the standard workload (18.8% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Mistral Large 4 Calculating… Estimated API cost
Aion 3.5 Mini 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

Mistral Large 4 has the lower input price; Aion 3.5 Mini has the lower output price; Mistral Large 4 offers the larger context window. For the 1M input plus 500K output sample, Aion 3.5 Mini is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $1.73 for Mistral Large 4 and $1.4 for Aion 3.5 Mini.

Best Fit

Choose Mistral Large 4 when you care most about lower input-token price, and larger context window.

Choose Aion 3.5 Mini when you care most about lower output-token price.

Decision Notes
  • On the standard 1M input plus 500K output workload, Aion 3.5 Mini is estimated at $1.4 vs $1.73 for Mistral Large 4, saving $0.33 (18.8% lower).
  • Aion 3.5 Mini is $0.33 cheaper on the standard workload (18.8% lower).
  • Mistral Large 4 is $0.02 cheaper per 1M input tokens (2.9% lower; 1.03x difference).
  • Aion 3.5 Mini is $0.69 cheaper per 1M output tokens (33% lower; 1.49x difference).
  • Mistral Large 4 has 786.43K more context (4x larger).
Head-to-Head Specs
FeatureNewMistral Large 4
(Mistral)		Aion 3.5 Mini
(AionLabs)
Input Price
prompt tokens per 1M		$0.68$0.7
Completion Price
per 1M tokens		$2.09$1.4
Sample Workload Cost
1M input + 500K output		$1.73$1.4
Context Window1.05M262.14K
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionAion 3.5 MiniOn the standard 1M input plus 500K output workload, Aion 3.5 Mini is estimated at $1.4 vs $1.73 for Mistral Large 4, saving $0.33 (18.8% lower).
High-volume input processingMistral Large 4Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsAion 3.5 MiniLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workMistral Large 4A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • Mistral Nemo can replace Mistral Large 4 when lower sample workload cost matters most: $0.04.
  • Mistral Small 3 can replace Mistral Large 4 when lower sample workload cost matters most: $0.09.
  • Ministral 3 8B 2512 (batch) can replace Mistral Large 4 when lower sample workload cost matters most: $0.11.
  • Ministral 3 3B 2512 can replace Mistral Large 4 when lower sample workload cost matters most: $0.15.
Larger context near this budget
  • 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.
  • GPT-6 Luna offers 1.05M context with $0.35 sample workload cost.
  • GPT-6 Luna Pro offers 1.05M context with $0.35 sample workload cost.

Cheaper alternatives

Review low-cost models sorted by a standard 1M input plus 500K output workload.

Open cheapest models

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

Mistral catalog

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

Open Mistral models

AionLabs catalog

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

Open AionLabs models
Mistral Large 4

Mistral Large 4 is a frontier multimodal (text and image input) model from Mistral AI built for reasoning, coding, and agentic workloads. It offers a 1M-token context window with up...

Aion 3.5 Mini

Aion 3.5 Mini is a multi-model roleplaying and storytelling system from AionLabs, built on the GLM family of models. It is the smaller, lower-cost sibling of Aion 3.5 and uses...