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o1 vs Solar Pro 4

Solar Pro 4 leads o1 on the Artificial Analysis Intelligence Index, 28.2 to 15.2, and Solar Pro 4 costs 100.0x less per output token ($0.60 vs $60.00 per million). Updated October 22, 2026; 32 benchmarks have a result for both.

Replace o1 Replace Solar Pro 4
o1OpenAI
Coding
No data
Overall
44.6
Output $/M
$60.00
5
Solar Pro 4Upstage
Coding
No data
Overall
No data
Output $/M
$0.60
27
vs boards won of 32 shared

o1 or Solar Pro 4: which to pick

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

Pick o1 for work measured by AA Coding Index or LMArena Text: coding, where it leads.

Model Ao1OpenAINot benchmarkedNo coding benchmarkNo cost per solved taskModel BSolar Pro 4UpstageNot benchmarked1 independent benchmarkNo cost per solved task
Shared results
32
o1 only
37
Solar Pro 4 only
13
Like-for-like categories
6 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
o1 not benchmarked, Solar Pro 4 not benchmarked.
Widest category
Intelligence, 13.0 points apart on average over 1 shared benchmark.
Widest single gap
Humanity's Last Exam (Artificial Analysis run): o1 7.0% against Solar Pro 4 29.8%, 22.8 points apart on a 0 to 100 scale.
Output price
o1 $60.00 against Solar Pro 4 $0.60 per million output tokens, 100.0x apart.
Context window
o1 takes 200K 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
Categoryo1BarsSolar Pro 4Ties
Coding03
Intelligence01
Reasoning05
Math02
Knowledge04
General512
All shared boards527
CodingLike-for-likeSix of these boards feed the Vibe Coding Index03
Coding benchmarks for o1 and Solar Pro 4
Benchmarko1Solar Pro 4Leader
Aider polyglot61.7%Not measuredOnly o1 measured
LMArena WebDevNot measured1371Only Solar Pro 4 measured
AA Coding Index39.752.7Solar Pro 4
LiveCodeBench (Vals AI)50.3%Not measuredOnly o1 measured
LiveCodeBench (Artificial Analysis run)67.9%Not measuredOnly o1 measured
SciCodeNot measured48.0%Only Solar Pro 4 measured
Terminal-Bench Hard (Artificial Analysis run)12.9%Not measuredOnly o1 measured
WeirdML46.1%Not measuredOnly o1 measured
ALE-BenchNot measured179.3Only Solar Pro 4 measured
LMArena Text: coding13671438Solar Pro 4
LMArena Text: software and IT13661431Solar Pro 4
LMArena WebDev: ReactNot measured1363Only Solar Pro 4 measured
LMArena WebDev: HTMLNot measured1371Only Solar Pro 4 measured
SciCode4.6%Not measuredOnly o1 measured
Neither model has a result on the other 25 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
Intelligence benchmarks for o1 and Solar Pro 4
Benchmarko1Solar Pro 4Leader
AA Intelligence Index15.228.2Solar Pro 4
Epoch Capabilities Index141.7Not measuredOnly o1 measured
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index3 boards, none shared
Agentic work benchmarks for o1 and Solar Pro 4
Benchmarko1Solar Pro 4Leader
Design Arena: agents building web appsNot measured1105Only Solar Pro 4 measured
τ²-Bench Telecom62.6%Not measuredOnly o1 measured
METR time horizons51.1%Not measuredOnly o1 measured
Neither model has a result on the other 38 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index05
Reasoning benchmarks for o1 and Solar Pro 4
Benchmarko1Solar Pro 4Leader
GPQA Diamond73.2%Not measuredOnly o1 measured
MMMU Pro (Vals AI)77.4%Not measuredOnly o1 measured
GPQA Diamond (Artificial Analysis run)74.7%89.1%Solar Pro 4
Humanity's Last Exam (Artificial Analysis run)7.0%29.8%Solar Pro 4
GPQA Diamond (Epoch AI run)76.8%Not measuredOnly o1 measured
ARC-AGI30.7%Not measuredOnly o1 measured
SimpleBench40.1%Not measuredOnly o1 measured
Chess puzzles10.0%Not measuredOnly o1 measured
VPCT37.0%Not measuredOnly o1 measured
LMArena Text: hard prompts13711400Solar Pro 4
LMArena Text: expert13611428Solar Pro 4
LMArena Text: hard prompts in English13721427Solar Pro 4
Neither model has a result on the other 10 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index02
Math benchmarks for o1 and Solar Pro 4
Benchmarko1Solar Pro 4Leader
AIME71.5%Not measuredOnly o1 measured
MATH 500 (Vals AI)90.4%Not measuredOnly o1 measured
MGSM (Vals AI)89.3%Not measuredOnly o1 measured
OTIS Mock AIME73.3%Not measuredOnly o1 measured
FrontierMath, tiers 1 to 314.7%Not measuredOnly o1 measured
MATH level 594.7%Not measuredOnly o1 measured
LMArena Text: math13881421Solar Pro 4
LMArena Text: mathematical work13901427Solar Pro 4
Neither model has a result on the other 5 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index04
Knowledge benchmarks for o1 and Solar Pro 4
Benchmarko1Solar Pro 4Leader
MMLU Pro83.5%Not measuredOnly o1 measured
LegalBench (Vals AI)80.4%Not measuredOnly o1 measured
TaxEval (Vals AI)74.3%Not measuredOnly o1 measured
MedQA (Vals AI)96.5%Not measuredOnly o1 measured
MMLU Pro (Artificial Analysis run)84.1%Not measuredOnly o1 measured
SimpleQA Verified41.1%Not measuredOnly o1 measured
GeoBench80.0%Not measuredOnly o1 measured
LMArena Text: science13691404Solar Pro 4
LMArena Text: medicine and healthcare13551374Solar Pro 4
LMArena Text: legal and government13681383Solar Pro 4
LMArena Text: business and finance13281381Solar Pro 4
Neither model has a result on the other 7 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index6 boards, none shared
Web design benchmarks for o1 and Solar Pro 4
Benchmarko1Solar 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 measured1177Only 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 index512
General benchmarks for o1 and Solar Pro 4
Benchmarko1Solar Pro 4Leader
IFBench70.3%Not measuredOnly o1 measured
Long context reasoning (AA-LCR)65.0%70.7%Solar Pro 4
DTBench74.7%Not measuredOnly o1 measured
LMCA22.3%Not measuredOnly o1 measured
Fiction.LiveBench83.3%Not measuredOnly o1 measured
Creative writing (Lech Mazur)70.2%Not measuredOnly o1 measured
LMArena Text13661388Solar Pro 4
LMArena Text: instruction following13671375Solar Pro 4
LMArena Text: creative writing13471317o1
LMArena Vision1168Not measuredOnly o1 measured
LMArena Text: English13721414Solar Pro 4
LMArena Text: non-English13581363Solar Pro 4
LMArena Text: Chinese13941422Solar Pro 4
LMArena Text: German13371358Solar Pro 4
LMArena Text: Japanese13461320o1
LMArena Text: Korean13961383o1
LMArena Text: French13441400Solar Pro 4
LMArena Text: Spanish13451409Solar Pro 4
LMArena Text: Russian13561357Solar Pro 4
LMArena Text: PolishNot measured1304Only Solar Pro 4 measured
LMArena Text: multi-turn13551385Solar Pro 4
LMArena Text: longer queries13781382Solar Pro 4
LMArena Text: writing and language13601344o1
LMArena Text: entertainment and media13581332o1
LMArena Vision: English1162Not measuredOnly o1 measured
LMArena Vision: Chinese1235Not measuredOnly o1 measured
Neither model has a result on the other 20 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for o1 and Solar Pro 4
Benchmarko1Solar 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

o1$0.045Fits in one request
Solar Pro 4$0.0004Fits in one request

Solar Pro 4 costs less

Repository review

50K input + 3K output tokens

o1$0.930Fits in one request
Solar Pro 4$0.0093Fits in one request

Solar Pro 4 costs less

Agent loop

200K input + 10K output tokens

o1$3.60Exceeds the context window
Solar Pro 4$0.036Fits in one request

Solar Pro 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.

Specifications of o1 and Solar Pro 4
SpecificationOpenAI o1Upstage Solar Pro 4
MakerOpenAIUpstage
WeightsNo public weights listedNo public weights listed
ReleasedDecember 17, 2024August 10, 2026
Context window200K524K
Input $/Mtok$15.00$0.15
Output $/Mtok$60.00$0.60
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it01
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is o1 better than Solar Pro 4 for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick o1 for work measured by AA Coding Index or LMArena Text: coding, where it leads.

Which is cheaper, o1 or Solar Pro 4?

o1 costs $15.00 per million input tokens and $60.00 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, o1 or Solar Pro 4?

Solar Pro 4, with 524K tokens against 200K.

How many benchmarks is the o1 vs Solar Pro 4 comparison based on?

32 benchmarks have a result for both models as of October 22, 2026. o1'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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