Ministral 3 3B 2512 vs Solar Mini 4
Solar Mini 4 leads Ministral 3 3B 2512 on the Artificial Analysis Intelligence Index, 24.1 to 4.8, and Ministral 3 3B 2512 costs 2.0x less per output token ($0.10 vs $0.20 per million). Updated October 22, 2026; 4 benchmarks have a result for both.
Ministral 3 3B 2512 or Solar Mini 4: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick Ministral 3 3B 2512 for output tokens 2.0x cheaper ($0.10 vs $0.20 per million) and work measured by AA Intelligence Index or Design Arena: websites, where it leads.
- Shared results
- 4
- Ministral 3 3B 2512 only
- 3
- Solar Mini 4 only
- 4
- Like-for-like categories
- 2 of 9
Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.
Which one for your work
Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Neither has a coding score yet.
One side not measured
Intelligence
AA Intelligence Index
Solar Mini 4
Solar Mini 4 leads, 24.1 against 4.8.
Same board, both measured
Agentic work
AA Agentic Index
No call
Only Ministral 3 3B 2512 has a AA Agentic Index result, 0.8.
Directional only
Web design
Design Arena: websites
Solar Mini 4
Solar Mini 4 leads, 1159 against 1027.
Same board, both measured
Long documents
Listed context window
Solar Mini 4
Solar Mini 4 takes 524K tokens against 131K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
No call
Ministral 3 3B 2512 $0.0001, Solar Mini 4 $0.0001 per turn.
List prices
At a glance
- Coding index
- Ministral 3 3B 2512 not benchmarked, Solar Mini 4 not benchmarked.
- Widest category
- Intelligence, 19.3 points apart on average over 1 shared benchmark.
- Widest single gap
- Design Arena: game dev: Ministral 3 3B 2512 948 against Solar Mini 4 1105, 19.6 points apart on a 0 to 100 scale.
- Output price
- Ministral 3 3B 2512 $0.10 against Solar Mini 4 $0.20 per million output tokens, 2.0x apart.
- Context window
- Ministral 3 3B 2512 takes 131K tokens, Solar Mini 4 524K.
Benchmark by benchmark
First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.
| Category | Ministral 3 3B 2512 | Bars | Solar Mini 4 | Ties |
|---|---|---|---|---|
| Intelligence | 0 | 1 | ||
| Web design | 0 | 3 | ||
| All shared boards | 0 | 4 |
CodingDirectional onlySix of these boards feed the Vibe Coding Index2 boards, none shared
| Benchmark | Ministral 3 3B 2512 | Solar Mini 4 | Leader |
|---|---|---|---|
| AA Coding Index | 4.8 | Not measured | Only Ministral 3 3B 2512 measured |
| SciCode | Not measured | 47.6% | Only Solar Mini 4 measured |
| Neither model has a result on the other 41 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Ministral 3 3B 2512 | Solar Mini 4 | Leader |
|---|---|---|---|
| AA Intelligence Index | 4.8 | 24.1 | Solar Mini 4 |
| Neither model has a result on the other 1 board here | |||
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
| Benchmark | Ministral 3 3B 2512 | Solar Mini 4 | Leader |
|---|---|---|---|
| AA Agentic Index | 0.8 | Not measured | Only Ministral 3 3B 2512 measured |
| Neither model has a result on the other 41 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
| Benchmark | Ministral 3 3B 2512 | Solar Mini 4 | Leader |
|---|---|---|---|
| Humanity's Last Exam (Artificial Analysis run) | Not measured | 25.8% | Only Solar Mini 4 measured |
| Neither model has a result on the other 22 boards here | |||
MathNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Ministral 3 3B 2512 | Solar Mini 4 | Leader |
|---|---|---|---|
| Neither model has a result on 14 boards here | |||
KnowledgeNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Ministral 3 3B 2512 | Solar Mini 4 | Leader |
|---|---|---|---|
| Neither model has a result on 20 boards here | |||
Web designLike-for-likePublic boards, shown as published, kept out of the index03
| Benchmark | Ministral 3 3B 2512 | Solar Mini 4 | Leader |
|---|---|---|---|
| Design Arena: websites | 1027 | 1159 | Solar Mini 4 |
| Design Arena: UI components | Not measured | 1073 | Only Solar Mini 4 measured |
| Design Arena: game dev | 948 | 1105 | Solar Mini 4 |
| Design Arena: 3D | 962 | Not measured | Only Ministral 3 3B 2512 measured |
| Design Arena: all code categories | 1009 | 1149 | Solar Mini 4 |
| Neither model has a result on the other 4 boards here | |||
GeneralDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
| Benchmark | Ministral 3 3B 2512 | Solar Mini 4 | Leader |
|---|---|---|---|
| Long context reasoning (AA-LCR) | Not measured | 83.3% | Only Solar Mini 4 measured |
| Neither model has a result on the other 47 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Ministral 3 3B 2512 | Solar Mini 4 | Leader |
|---|---|---|---|
| Neither model has a result on 5 boards here | |||
What each workload costs
Three fixed token mixes at each model's listed price, so per-token rates become a bill.
Chat turn
1K input + 500 output tokens
Same cost
Repository review
50K input + 3K output tokens
Solar Mini 4 costs less
Agent loop
200K input + 10K output tokens
Solar Mini 4 costs less
Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.
Specification differences
The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.
| Specification | Mistral Ministral 3 3B 2512 | Upstage Solar Mini 4 |
|---|---|---|
| Maker | Mistral AI | Upstage |
| Weights | Open weights | No public weights listed |
| Released | December 2, 2025 | September 23, 2026 |
| Context window | 131K | 524K |
| Input $/Mtok | $0.10 | $0.05 |
| Output $/Mtok | $0.10 | $0.20 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 0 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Ministral 3 3B 2512 better than Solar Mini 4 for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Ministral 3 3B 2512 for output tokens 2.0x cheaper ($0.10 vs $0.20 per million) and work measured by AA Intelligence Index or Design Arena: websites, where it leads.
Which is cheaper, Ministral 3 3B 2512 or Solar Mini 4?
Ministral 3 3B 2512 costs $0.10 per million input tokens and $0.10 per million output tokens; Solar Mini 4 costs $0.05 and $0.20. Cost per solved task is known for neither of them.
Which has the bigger context window, Ministral 3 3B 2512 or Solar Mini 4?
Solar Mini 4, with 524K tokens against 131K.
How many benchmarks is the Ministral 3 3B 2512 vs Solar Mini 4 comparison based on?
4 benchmarks have a result for both models as of October 22, 2026. Ministral 3 3B 2512's coding index rests on 0 independent benchmarks and Solar Mini 4's on 0. Where only one model has a result, the page says so instead of naming a winner.