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DeepSeek V3 vs Solar Pro 3

Updated October 21, 2026. No benchmark has tested both models yet. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

DeepSeek V3DeepSeek
Coding
No data
Overall
No data
Output $/M
$0.9594
Solar Pro 3Upstage
Coding
No data
Overall
7.8
Output $/M
$0.60
vs $0.9594 vs $0.60 per 1M output tokens. Solar Pro 3 is 1.6x cheaper.

Decision reading

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

DeepSeek V3 has the edge where the context window is larger, 164K against 131K tokens.

No benchmark has tested both yet. DeepSeek V3 has results on Aider polyglot, SWE-bench Lite and GPQA Diamond (Epoch AI run); Solar Pro 3 on AA Coding Index, SciCode and Terminal-Bench Hard (Artificial Analysis run). Compare them on price and context instead.

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
DeepSeek V3 not benchmarked, Solar Pro 3 not benchmarked.
Widest category
None yet: no category has been tested on both models.
Widest single gap
None yet: no benchmark has tested both models.
Output price
DeepSeek V3 $0.9594 against Solar Pro 3 $0.60 per million output tokens, 1.6x apart.
Context window
DeepSeek V3 takes 164K tokens, Solar Pro 3 131K.

Benchmark by benchmark

Every board either model has a result on, a category to a fold; bars are each result on a 0 to 100 scale. Only one model is measured on each, so no row names a leader.

CodingDirectional onlySix of these boards feed the Vibe Coding Index5 boards measured
Coding benchmarks for DeepSeek V3 and Solar Pro 3
BenchmarkDeepSeek V3Solar Pro 3Leader
Aider polyglot70.2%Not measuredOnly DeepSeek V3 measured
SWE-bench Lite30.7%Not measuredOnly DeepSeek V3 measured
AA Coding IndexNot measured16.2Only Solar Pro 3 measured
SciCodeNot measured25.5%Only Solar Pro 3 measured
Terminal-Bench Hard (Artificial Analysis run)Not measured7.6%Only Solar Pro 3 measured
Neither model has a result on the other 33 boards here
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
Intelligence benchmarks for DeepSeek V3 and Solar Pro 3
BenchmarkDeepSeek V3Solar Pro 3Leader
AA Intelligence IndexNot measured7.8Only Solar Pro 3 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 measured
Agentic work benchmarks for DeepSeek V3 and Solar Pro 3
BenchmarkDeepSeek V3Solar Pro 3Leader
AA Agentic IndexNot measured1.4Only Solar Pro 3 measured
τ²-Bench TelecomNot measured86.3%Only Solar Pro 3 measured
Neither model has a result on the other 37 boards here
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index3 boards measured
Reasoning benchmarks for DeepSeek V3 and Solar Pro 3
BenchmarkDeepSeek V3Solar Pro 3Leader
GPQA Diamond (Artificial Analysis run)Not measured72.4%Only Solar Pro 3 measured
Humanity's Last Exam (Artificial Analysis run)Not measured10.3%Only Solar Pro 3 measured
GPQA Diamond (Epoch AI run)71.2%Not measuredOnly DeepSeek V3 measured
Neither model has a result on the other 18 boards here
MathDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
Math benchmarks for DeepSeek V3 and Solar Pro 3
BenchmarkDeepSeek V3Solar Pro 3Leader
OTIS Mock AIME48.9%Not measuredOnly DeepSeek V3 measured
Neither model has a result on the other 12 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index7 boards measured
Web design benchmarks for DeepSeek V3 and Solar Pro 3
BenchmarkDeepSeek V3Solar Pro 3Leader
Design Arena: websites1120Not measuredOnly DeepSeek V3 measured
Design Arena: UI components1093Not measuredOnly DeepSeek V3 measured
Design Arena: game dev1053Not measuredOnly DeepSeek V3 measured
Design Arena: data viz1089Not measuredOnly DeepSeek V3 measured
Design Arena: 3D1087Not measuredOnly DeepSeek V3 measured
Design Arena: all code categories1108Not measuredOnly DeepSeek V3 measured
Design Arena: SVG977Not measuredOnly DeepSeek V3 measured
Neither model has a result on the other 2 boards here
GeneralDirectional onlyPublic boards, shown as published, kept out of the index4 boards measured
General benchmarks for DeepSeek V3 and Solar Pro 3
BenchmarkDeepSeek V3Solar Pro 3Leader
IFBenchNot measured71.2%Only Solar Pro 3 measured
Long context reasoning (AA-LCR)Not measured32.3%Only Solar Pro 3 measured
DTBench62.7%Not measuredOnly DeepSeek V3 measured
LMCA15.2%Not measuredOnly DeepSeek V3 measured
Neither model has a result on the other 42 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

DeepSeek V3$0.0008Fits in one request
Solar Pro 3$0.0004Fits in one request

Solar Pro 3 costs less

Repository review

50K input + 3K output tokens

DeepSeek V3$0.017Fits in one request
Solar Pro 3$0.0093Fits in one request

Solar Pro 3 costs less

Agent loop

200K input + 10K output tokens

DeepSeek V3$0.067Exceeds the context window
Solar Pro 3$0.036Exceeds the context window

Solar Pro 3 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 DeepSeek V3 and Solar Pro 3
SpecificationDeepSeek V3Upstage Solar Pro 3
MakerDeepSeekUpstage
WeightsOpen weightsNo public weights listed
ReleasedDecember 26, 2024January 27, 2026
Context window164K131K
Input $/Mtok$0.2887$0.15
Output $/Mtok$0.9594$0.60
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it00
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is DeepSeek V3 better than Solar Pro 3 for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. DeepSeek V3 has the edge where the context window is larger, 164K against 131K tokens.

Which is cheaper, DeepSeek V3 or Solar Pro 3?

DeepSeek V3 costs $0.2887 per million input tokens and $0.9594 per million output tokens; Solar Pro 3 costs $0.15 and $0.60. Cost per solved task is known for neither of them.

Which has the bigger context window, DeepSeek V3 or Solar Pro 3?

DeepSeek V3, with 164K tokens against 131K.

Has any benchmark tested both DeepSeek V3 and Solar Pro 3?

No benchmark has tested both yet. DeepSeek V3 has results on Aider polyglot, SWE-bench Lite and GPQA Diamond (Epoch AI run); Solar Pro 3 on AA Coding Index, SciCode and Terminal-Bench Hard (Artificial Analysis run). Compare them on price and context instead. Data as of October 21, 2026.

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