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GPT-4o-mini (2024-07-18) vs Solar Pro 4

GPT-4o-mini (2024-07-18) and Solar Pro 4 cost about the same per output token ($0.60 vs $0.60 per million). Updated October 22, 2026; 28 benchmarks have a result for both.

Replace GPT-4o-mini (2024-07-18) Replace Solar Pro 4
GPT-4o-mini (2024-07-18)OpenAI
Coding
No data
Overall
No data
Output $/M
$0.60
0
Solar Pro 4Upstage
Coding
No data
Overall
No data
Output $/M
$0.60
28
vs boards won of 28 shared

GPT-4o-mini (2024-07-18) or Solar Pro 4: which to pick

Neither model has a coding score yet, so the two cannot be ranked on coding.

Pick GPT-4o-mini (2024-07-18) for work measured by LMArena Text: coding or LMArena Text: software and IT, where it leads.

Model AGPT-4o-mini (2024-07-18)OpenAINot benchmarkedNo coding benchmarkNo cost per solved taskModel BSolar Pro 4UpstageNot benchmarked1 independent benchmarkNo cost per solved task
Shared results
28
GPT-4o-mini (2024-07-18) only
18
Solar Pro 4 only
17
Like-for-like categories
5 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.

At a glance

Coding index
GPT-4o-mini (2024-07-18) not benchmarked, Solar Pro 4 not benchmarked.
Widest category
Reasoning, 26.3 points apart on average over 3 shared benchmarks.
Widest single gap
LMArena Text: expert: GPT-4o-mini (2024-07-18) 1234 against Solar Pro 4 1428, 32.3 points apart on a 0 to 100 scale.
Output price
Both cost $0.60 per million output tokens.
Context window
GPT-4o-mini (2024-07-18) takes 128K tokens, Solar Pro 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.

Boards won, where both have a result
CategoryGPT-4o-mini (2024-07-18)BarsSolar Pro 4Ties
Coding02
Reasoning03
Math02
Knowledge04
General017
All shared boards028
CodingLike-for-likeSix of these boards feed the Vibe Coding Index02
Coding benchmarks for GPT-4o-mini (2024-07-18) and Solar Pro 4
BenchmarkGPT-4o-mini (2024-07-18)Solar Pro 4Leader
Aider polyglot3.6%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena WebDevNot measured1371Only Solar Pro 4 measured
AA Coding IndexNot measured52.7Only Solar Pro 4 measured
SciCodeNot measured48.0%Only Solar Pro 4 measured
WeirdML11.8%Not measuredOnly GPT-4o-mini (2024-07-18) measured
ALE-BenchNot measured179.3Only Solar Pro 4 measured
LMArena Text: coding12901438Solar Pro 4
LMArena Text: software and IT12911431Solar Pro 4
LMArena WebDev: ReactNot measured1363Only Solar Pro 4 measured
LMArena WebDev: HTMLNot measured1371Only Solar Pro 4 measured
Neither model has a result on the other 33 boards here
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
Intelligence benchmarks for GPT-4o-mini (2024-07-18) and Solar Pro 4
BenchmarkGPT-4o-mini (2024-07-18)Solar Pro 4Leader
AA Intelligence IndexNot measured28.2Only Solar Pro 4 measured
Neither model has a result on the other 1 board here
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
Agentic work benchmarks for GPT-4o-mini (2024-07-18) and Solar Pro 4
BenchmarkGPT-4o-mini (2024-07-18)Solar Pro 4Leader
Design Arena: agents building web appsNot measured1105Only Solar Pro 4 measured
BALROG17.4%Not measuredOnly GPT-4o-mini (2024-07-18) measured
Neither model has a result on the other 40 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index03
Reasoning benchmarks for GPT-4o-mini (2024-07-18) and Solar Pro 4
BenchmarkGPT-4o-mini (2024-07-18)Solar Pro 4Leader
GPQA Diamond (Artificial Analysis run)Not measured89.1%Only Solar Pro 4 measured
Humanity's Last Exam (Artificial Analysis run)Not measured29.8%Only Solar Pro 4 measured
GPQA Diamond (Epoch AI run)37.7%Not measuredOnly GPT-4o-mini (2024-07-18) measured
SimpleBench10.7%Not measuredOnly GPT-4o-mini (2024-07-18) measured
Chess puzzles3.0%Not measuredOnly GPT-4o-mini (2024-07-18) measured
Mystery game puzzles12.0%Not measuredOnly GPT-4o-mini (2024-07-18) measured
VPCT34.0%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Text: hard prompts12671400Solar Pro 4
LMArena Text: expert12341428Solar Pro 4
LMArena Text: hard prompts in English12781427Solar Pro 4
Neither model has a result on the other 13 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index02
Math benchmarks for GPT-4o-mini (2024-07-18) and Solar Pro 4
BenchmarkGPT-4o-mini (2024-07-18)Solar Pro 4Leader
OTIS Mock AIME6.9%Not measuredOnly GPT-4o-mini (2024-07-18) measured
FrontierMath, tiers 1 to 30.7%Not measuredOnly GPT-4o-mini (2024-07-18) measured
MATH level 552.6%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Text: math12671421Solar Pro 4
LMArena Text: mathematical work12711427Solar Pro 4
Neither model has a result on the other 9 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index04
Knowledge benchmarks for GPT-4o-mini (2024-07-18) and Solar Pro 4
BenchmarkGPT-4o-mini (2024-07-18)Solar Pro 4Leader
SimpleQA Verified8.3%Not measuredOnly GPT-4o-mini (2024-07-18) measured
MMLU76.7%Not measuredOnly GPT-4o-mini (2024-07-18) measured
GeoBench64.0%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Text: science12861404Solar Pro 4
LMArena Text: medicine and healthcare12821374Solar Pro 4
LMArena Text: legal and government13051383Solar Pro 4
LMArena Text: business and finance12651381Solar Pro 4
Neither model has a result on the other 13 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index6 boards, none shared
Web design benchmarks for GPT-4o-mini (2024-07-18) and Solar Pro 4
BenchmarkGPT-4o-mini (2024-07-18)Solar Pro 4Leader
Design Arena: websitesNot measured1176Only Solar Pro 4 measured
Design Arena: UI componentsNot measured1147Only Solar Pro 4 measured
Design Arena: game devNot measured1169Only Solar Pro 4 measured
Design Arena: data vizNot measured1178Only Solar Pro 4 measured
Design Arena: 3DNot measured1178Only Solar Pro 4 measured
Design Arena: all code categoriesNot measured1182Only Solar Pro 4 measured
Neither model has a result on the other 3 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index017
General benchmarks for GPT-4o-mini (2024-07-18) and Solar Pro 4
BenchmarkGPT-4o-mini (2024-07-18)Solar Pro 4Leader
Long context reasoning (AA-LCR)Not measured70.7%Only Solar Pro 4 measured
Creative writing (Lech Mazur)67.2%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Text12861388Solar Pro 4
LMArena Text: instruction following12581375Solar Pro 4
LMArena Text: creative writing12681317Solar Pro 4
LMArena Vision1066Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Text: English13011414Solar Pro 4
LMArena Text: non-English12661363Solar Pro 4
LMArena Text: Chinese12651422Solar Pro 4
LMArena Text: German12721358Solar Pro 4
LMArena Text: Japanese12161320Solar Pro 4
LMArena Text: Korean11951383Solar Pro 4
LMArena Text: French12971400Solar Pro 4
LMArena Text: Spanish12761409Solar Pro 4
LMArena Text: Russian12751357Solar Pro 4
LMArena Text: Polish12441304Solar Pro 4
LMArena Text: multi-turn12851385Solar Pro 4
LMArena Text: longer queries12891382Solar Pro 4
LMArena Text: writing and language12821344Solar Pro 4
LMArena Text: entertainment and media12531332Solar Pro 4
LMArena Vision: English1072Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Vision: Chinese1033Not measuredOnly GPT-4o-mini (2024-07-18) measured
Neither model has a result on the other 26 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-4o-mini (2024-07-18) and Solar Pro 4
BenchmarkGPT-4o-mini (2024-07-18)Solar Pro 4Leader
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

GPT-4o-mini (2024-07-18)$0.0004Fits in one request
Solar Pro 4$0.0004Fits in one request

Same cost

Repository review

50K input + 3K output tokens

GPT-4o-mini (2024-07-18)$0.0093Fits in one request
Solar Pro 4$0.0093Fits in one request

Same cost

Agent loop

200K input + 10K output tokens

GPT-4o-mini (2024-07-18)$0.036Exceeds the context window
Solar Pro 4$0.036Fits in one request

Same cost

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.

Specifications of GPT-4o-mini (2024-07-18) and Solar Pro 4
SpecificationOpenAI GPT-4o-mini (2024-07-18)Upstage Solar Pro 4
MakerOpenAIUpstage
WeightsNo public weights listedNo public weights listed
ReleasedJuly 18, 2024August 10, 2026
Context window128K524K
Input $/Mtok$0.15$0.15
Output $/Mtok$0.60$0.60
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it01
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-4o-mini (2024-07-18) better than Solar Pro 4 for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick GPT-4o-mini (2024-07-18) for work measured by LMArena Text: coding or LMArena Text: software and IT, where it leads.

Which is cheaper, GPT-4o-mini (2024-07-18) or Solar Pro 4?

GPT-4o-mini (2024-07-18) costs $0.15 per million input tokens and $0.60 per million output tokens; Solar Pro 4 costs $0.15 and $0.60. Cost per solved task is known for neither of them.

Which has the bigger context window, GPT-4o-mini (2024-07-18) or Solar Pro 4?

Solar Pro 4, with 524K tokens against 128K.

How many benchmarks is the GPT-4o-mini (2024-07-18) vs Solar Pro 4 comparison based on?

28 benchmarks have a result for both models as of October 22, 2026. GPT-4o-mini (2024-07-18)'s coding index rests on 0 independent benchmarks and Solar Pro 4's on 1. Where only one model has a result, the page says so instead of naming a winner.

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