Model comparison

DeepSeek V4 Pro vs Solar Pro 3

DeepSeek V4 Pro has enough public results to be ranked (#31); Solar Pro 3 does not yet, so treat this comparison as directional.

Last verified . 2 shared benchmarks.

DeepSeek V4 Pro DeepSeek

54.3

Rank #31 Confirmed

Solar Pro 3 Upstage

33.9

Unranked Sparse

Summary

  • They share 2 benchmarks with published results for both. DeepSeek V4 Pro scores higher in 2 categories and Solar Pro 3 in 0 categories; 2 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where DeepSeek V4 Pro leads 56.5 to 22.4.
  • The biggest single-benchmark swing is SciCode: 51% for DeepSeek V4 Pro and 24.7% for Solar Pro 3.
  • Solar Pro 3 is cheaper at $0.25 / $0.25 per million input/output tokens, against $0.66 / $1.98 for DeepSeek V4 Pro.
  • DeepSeek V4 Pro accepts more context: 1M tokens versus 131K.
  • DeepSeek V4 Pro has downloadable open weights; the other is API-only.

Side by side

DeepSeek V4 Pro and Solar Pro 3 specifications
DeepSeek V4 ProSolar Pro 3
ProviderDeepSeekUpstage
Noometry Index54.333.9
Released2026-04-242026-01
WeightsOpenProprietary
Context window1M131K
Max output393K8K
Input $ / M tokens$0.66$0.25
Output $ / M tokens$1.98$0.25
Results tracked482

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Category by category

Coding DeepSeek V4 Pro leads

DeepSeek V4 Pro: 52.4 (#34), Solar Pro 3: 34.8

Coding benchmarks
BenchmarkDeepSeek V4 ProSolar Pro 3
SciCode51%24.7%
SWE-bench Verified77.6%—
FrontierCode28.6%—
LMArena WebDev1582—
WeirdML66.2%—
LMArena Coding1470—
ALE-Bench1,403—

Agentic & Tool Use Not comparable

DeepSeek V4 Pro: 32.8 (#58), Solar Pro 3: —

Agentic & Tool Use benchmarks
BenchmarkDeepSeek V4 ProSolar Pro 3
APEX-Agents47.3%—
Vending-Bench 23,285—

Reasoning DeepSeek V4 Pro leads

DeepSeek V4 Pro: 56.5 (#24), Solar Pro 3: 22.4

Reasoning benchmarks
BenchmarkDeepSeek V4 ProSolar Pro 3
CritPt18%0%
ARC-AGI-261.3%—
Kagi LLM Benchmark53.5%—
NYT Connections (extended)91.3%—
ARC-AGI-190.5%—
Chess Puzzles47%—
LMArena Hard Prompts1461—
Mystery Game Puzzles43%—
DTBench93.9%—
LMCA45.5%—
Surface Evolver Bench40%—
Epoch Capabilities Index155.31—
ForecastBench56.1—

Math Not comparable

DeepSeek V4 Pro: 64.8 (#30), Solar Pro 3: —

Math benchmarks
BenchmarkDeepSeek V4 ProSolar Pro 3
FrontierMath (Tiers 1-3)64.6%—
FrontierMath Tier 426.8%—
MathArena Final-Answer Competitions76.6%—
OTIS Mock AIME 2024-202598.6%—
ProofBench50%—
LMArena Math1455—

Knowledge Not comparable

DeepSeek V4 Pro: 59.5 (#31), Solar Pro 3: —

Knowledge benchmarks
BenchmarkDeepSeek V4 ProSolar Pro 3
GPQA Diamond91.7%—
SimpleQA Verified52.9%—
Vectara Hallucination Rate8.6%—
LMArena Expert1464—

Multilingual Not comparable

DeepSeek V4 Pro: 54.4 (#45), Solar Pro 3: —

Multilingual benchmarks
BenchmarkDeepSeek V4 ProSolar Pro 3
LMArena Non-English1439—
LMArena Chinese1486—
LMArena French1472—
LMArena German1458—
LMArena Japanese1445—
LMArena Korean1447—
LMArena Russian1453—
LMArena Spanish1458—

Instruction Following Not comparable

DeepSeek V4 Pro: 76.1 (#47), Solar Pro 3: —

Instruction Following benchmarks
BenchmarkDeepSeek V4 ProSolar Pro 3
LMArena Instruction Following1448—

Long Context Not comparable

DeepSeek V4 Pro: 45.0 (#51), Solar Pro 3: —

Long Context benchmarks
BenchmarkDeepSeek V4 ProSolar Pro 3
CL-bench Life13.5%—
LMArena Longer Query1458—

Writing & Preference Not comparable

DeepSeek V4 Pro: 65.5 (#46), Solar Pro 3: —

Writing & Preference benchmarks
BenchmarkDeepSeek V4 ProSolar Pro 3
LMArena Text1451—
LMArena Creative Writing1446—
EQ-Bench Creative Writing1553—
EQ-Bench 41166—
LMArena Multi-Turn1467—

Frequently asked questions

Is DeepSeek V4 Pro better than Solar Pro 3?

DeepSeek V4 Pro has enough public results to be ranked (#31); Solar Pro 3 does not yet, so treat this comparison as directional.

Which is cheaper, DeepSeek V4 Pro or Solar Pro 3?

Solar Pro 3 is cheaper. It lists at $0.25 per million input tokens and $0.25 per million output tokens; DeepSeek V4 Pro lists at $0.66 and $1.98.

Is DeepSeek V4 Pro or Solar Pro 3 better for coding?

DeepSeek V4 Pro scores higher on coding benchmarks: 52.4 versus 34.8 in the Noometry coding category.

Which has the bigger context window?

DeepSeek V4 Pro does, with 1M tokens against 131K.

How many benchmarks do DeepSeek V4 Pro and Solar Pro 3 share?

2 benchmarks have published results for both models. DeepSeek V4 Pro has 48 scored results on Noometry and Solar Pro 3 has 2.

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