Upstage
·Released on Aug 10, 2026

Solar Pro 4 API Benchmarks, Pricing & Provider Data

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LLM

Solar Pro 4 benchmark, API pricing, and provider data cover undefined API provider} other undefined API providers}}, with prices starting at $2.19/M. Solar Pro 4 free API options are available from undefined provider} other undefined providers}}.

Solar Pro 4 is a large language model from Upstage. It is suited for agentic workflows, office productivity, document-intensive work, and coding.

Cost
#55of 186
$2.19/ 1M · 8:1 in:out
$0.350 in · $1.84 out

Category Performance

Observed-capability estimates with uncertainty reported separately from independent benchmark families.

Coverage
2 / 8
Methodology
V3.0
Category PerformanceObserved-capability estimates with uncertainty reported separately from independent benchmark families.Agents-Coding52.2Reasoning57.6Knowledge-Math-Multilingual-Multimodal-Instruction following-
#1Reasoning57.6Provisional1/4 Measured dimensions
80% interval: 43.771.5
abstract logicPrior only
scientific causal57.6
gpqa · gpqa / hle · hle
multistep constraintsPrior only
evidence verificationPrior only
#2Coding52.2Provisional1/4 Measured dimensions
80% interval: 36.368.2
code generation52.2
scicode · scicode
repository engineeringPrior only
debugging testingPrior only
tooling qualityPrior only
No data:AgentsKnowledgeMathMultilingualMultimodalInstruction following

Specifications

Input and output token limits for this model, plus how it ranks on long-context understanding.

INPUT
524.3Ktokens
629.1 pages of text
OUTPUT
131.1Ktokens
8K128K1M4M
524.3K

Features

Technical Details

Input
Output
Released
Aug 2026
Documentation
Tokenizer
Other
Architecture
text->text
Moderated
No
Supported parameters
frequency_penaltyinclude_reasoningmax_tokensparallel_tool_callspresence_penaltyreasoningresponse_formatstructured_outputstemperaturetool_choicetoolstop_p

Rankings

Excels at

Detailed scores

Updated: Sep 13, 2026

Speed & latency

undefined metric} other undefined metrics}}

Output speed50.1 tok/s#70 / 80Time to first token1.22 s#36 / 80
Output speed
LMSpeed rank#70
Score50.1 tok/s
UpdatedSep 13, 2026
Confidence4
Time to first token
LMSpeed rank#36
Score1.22 s
UpdatedSep 13, 2026
Confidence4

Pricing

undefined metric} other undefined metrics}}

Input price$0.300/M#55 / 186Output price$1.20/M#50 / 186
Input price
LMSpeed rank#55
Score$0.300/M
UpdatedSep 13, 2026
Confidence4
Output price
LMSpeed rank#50
Score$1.20/M
UpdatedSep 13, 2026
Confidence4

Agents

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Planning & decompositionPrior only
Tool usePrior only
Environment & long-horizon executionPrior only
Recovery & completion reliabilityPrior only

Coding

V3.0

undefined metric} other undefined metrics}} · Provisional

Score52.280% interval36.3–68.21/4 Measured dimensionsSciCode44.6%#48 / 89
Dimensions and evidence
Code generation52.2
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
scicode · scicode · z 0.13 · q 1.00
Repository engineeringPrior only
Debugging & testingPrior only
Tool-assisted development & qualityPrior only
SciCodeV3 evidence
LMSpeed rank#48
Score44.6%
UpdatedSep 13, 2026
Confidence4

Reasoning

V3.0

undefined metric} other undefined metrics}} · Provisional

Score57.680% interval43.7–71.51/4 Measured dimensionsGPQA89.1%#45 / 218HLE29.2%#60 / 216
Dimensions and evidence
Abstract logicPrior only
Scientific & causal reasoning57.6
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
gpqa · gpqa · z 0.79 · q 1.00
hle · hle · z 0.56 · q 1.00
Multi-step constraintsPrior only
Evidence integration & verificationPrior only
GPQAV3 evidence
LMSpeed rank#45
Score89.1%
UpdatedSep 13, 2026
Confidence4
HLEV3 evidence
LMSpeed rank#60
Score29.2%
UpdatedSep 13, 2026
Confidence4

Knowledge

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Broad knowledgePrior only
Professional knowledgePrior only
FactualityPrior only
Retrieval & open-book usePrior only

Math

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Foundational mathPrior only
Competition mathPrior only
Advanced proofsPrior only
Applied & tool-assisted mathPrior only

Multilingual

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Cross-language understandingPrior only
Multilingual generationPrior only
Reasoning transferPrior only
Low-resource robustnessPrior only

Multimodal

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Perception & OCRPrior only
Document & spatial understandingPrior only
Visual reasoningPrior only
Video & grounded actionPrior only

Instruction following

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Constraint followingPrior only
Structured outputPrior only
Novel-instruction generalizationPrior only
Multi-turn & long instructionsPrior only

OpenRouter endpoints

2 endpoints

Third-party OpenRouter endpoint data, shown separately from LMSpeed measurements. Some 30-minute live performance fields only appear after syncing with an OpenRouter API key.

Provider endpointInputOutput1d uptime30m latency30m throughputContext / output
Upstage
upstage/zdr
$0.090/M$0.360/M99.5%undefined tokens / undefined tokens
Upstage
upstage
$0.090/M$0.360/M99.3%undefined tokens / undefined tokens

Pricing Comparison

Compare Solar Pro 4 API pricing across 4 providers. Prices range from $2.19/M to $2.19/M. 91VIP offers the lowest rate at $2.19/M. 1 provider offers free API credits or a free tier.

ProviderHealthModel VariantGroupInput ($/M)Output ($/M)Speed (t/s)First tokenAudit
L1
99%
solar-pro4
原价分组
Free
Free
L1
0%
solar-pro4
model
$2.19/M
Cache read$0.438/M
$8.76/M
L1
0%
solar-pro4
model
$2.19/M
Cache read$0.438/M
$8.76/M

Alternatives & Similar Models

Frequently Asked Questions

What benchmark data does Solar Pro 4 include?
LMSpeed shows Solar Pro 4 benchmark context, API price, output speed, first-token latency, and provider data across 5 providers when those signals are available.
What is the Solar Pro 4 API price?
Solar Pro 4 has pricing from undefined provider} other undefined providers}}, ranging from $2.19/M to $2.19/M. 91VIP has the lowest listed price.
What does the Solar Pro 4 API pricing table include?
The Solar Pro 4 API pricing table compares 5 providers by input price, output price, free tier status, speed, first-token latency, and recent health data when available.
Which provider has the cheapest Solar Pro 4 API pricing?
91VIP currently has the lowest listed Solar Pro 4 price at $2.19/M across undefined provider} other undefined providers}}.
Is Solar Pro 4 API free?
Yes, Solar Pro 4 free API options are available through 1 providerundefined other undefined} on LMSpeed, including 兔子API. These providers offer free API credits or a free tier with no per-token charges.
Where can I get Solar Pro 4 free API access?
LMSpeed currently lists 1 free API providerundefined other undefined} for Solar Pro 4: 兔子API. Check each provider row before using it because free tier limits can change.

Also known as

solar-pro4upstage/solar-pro4

Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.Artificial AnalysisStandard benchmark data may include BenchLM and other public sources.

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