DeepSeek-V4-Flash vs Solar Pro 3
Wins 5 of 6 areas
Coding · Agents · Reasoning · Long documents · Following instructions
Wins 0 of 6 areas
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DeepSeek-V4-Flash is the stronger all-rounder.Solar Pro 3 is cheaper.
Scores updated · 17 tests both models report · How we compare
Where each one wins
Tests won in each of the six areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
- CodingWriting and fixing software30DeepSeek-V4-Flash3 of 3 tests
- AgentsCarrying out multi-step tasks on its own30DeepSeek-V4-Flash3 of 3 tests
- ReasoningHard problems that need careful thinking30DeepSeek-V4-Flash3 of 3 tests
- Long documentsFinding answers in very long texts10DeepSeek-V4-Flash1 of 1 test
- Following instructionsDoing exactly what it is asked10DeepSeek-V4-Flash1 of 1 test
- FactsGetting facts right instead of making them up11Even1 each
Long documents and following instructions rest on a single test each.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
Solar Pro 3 costs 57% less for the same work.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where DeepSeek-V4-Flash pulls ahead
- Command-line tasks in a real terminalTerminal-Bench 2.1+66.7points ahead
- Reasons across sets of long documentsAA-LCR+47.4points ahead
- Customer-service tasks in a simulated bankτ-Bench V3 · Banking+30.7points ahead
Where Solar Pro 3 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+3.5points ahead
Every test, side by side
All 17 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingDeepSeek-V4-Flash
- Terminal-Bench 2.1DeepSeek-V4-Flash by 66.778.712+66.7
- Terminal-Bench HardDeepSeek-V4-Flash by 2835.67.6+28
- SciCodeDeepSeek-V4-Flash by 24.850.325.5+24.8
AgentsDeepSeek-V4-Flash
- GDPValDeepSeek-V4-Flash by 46.946.90+46.9
- τ-Bench V3 · BankingDeepSeek-V4-Flash by 30.739.48.7+30.7
- Terminal-Bench 4.0DeepSeek-V4-Flash by 12.112.10+12.1
ReasoningDeepSeek-V4-Flash
- Humanity's Last ExamDeepSeek-V4-Flash by 28.338.610.3+28.3
- GPQA DiamondDeepSeek-V4-Flash by 18.490.872.4+18.4
- CritPtDeepSeek-V4-Flash by 16.616.60+16.6
FactsEven
- AA-Omniscience · AccuracyDeepSeek-V4-Flash by 21.940.418.5+21.9
- AA-Omniscience · Non-hallucinationSolar Pro 3 by 3.58.311.8+3.5
Long documentsDeepSeek-V4-Flash
- AA-LCRDeepSeek-V4-Flash by 47.479.732.3+47.4
Following instructionsDeepSeek-V4-Flash
- IFBenchDeepSeek-V4-Flash by 879.271.2+8
Other results4 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- Artificial Analysis Coding IndexDeepSeek-V4-Flash by 52.969.116.2+52.9
- AA-OmniscienceDeepSeek-V4-Flash by 39.1-14.3-53.4+39.1
- AA IntelligenceDeepSeek-V4-Flash by 26.534.37.8+26.5
- τ²-Bench Telecom (AA run)DeepSeek-V4-Flash by 8.79586.3+8.7
Questions people ask
Which is better, DeepSeek-V4-Flash or Solar Pro 3?
DeepSeek-V4-Flash wins five of the six areas where both have results: coding, agents, reasoning, long documents and following instructions. Solar Pro 3 wins none, but costs 57% less. They are level on facts.
Which is better for coding?
DeepSeek-V4-Flash. It wins 3 of the 3 coding tests both models report; Solar Pro 3 wins none.
Which is cheaper?
DeepSeek-V4-Flash costs $0.44 per million input tokens and $1.32 per million output tokens; Solar Pro 3 costs $0.15 and $0.60. That makes Solar Pro 3 about 57% cheaper for the same work.
How do you compare the two?
We use the 17 benchmark tests both models have published scores on. The verdict counts the 13 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 4 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.