DeepSeek V3 vs O3 Mini
As of Oct 15, 2026, DeepSeek V3 leads O3 Mini in 1 of 3 shared categories: Long context.
| Category | DeepSeek V3 | O3 Mini |
|---|---|---|
| General LLM | #12 · #12 in General LLM Margin — LMArena leaderboard dataset · Mar 17, 2025 | #10 · #10 in General LLM Margin — LMArena leaderboard dataset · Apr 16, 2025 |
| Reasoning | #— · Not enough data Margin — LMArena leaderboard dataset · Feb 11, 2025 | #172 · Was SOTA · Reasoning Margin 92.02127659574468 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Jan 22, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #114 · #114 in Science Margin — Epoch AI benchmarking hub · Dec 26, 2024 | #76 · #76 in Science Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Mar 11, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #185 · #185 in Long context Margin 98.40425531914893 LMArena leaderboard dataset · Oct 13, 2026 | #186 · #186 in Long context Margin 98.93617021276596 LMArena leaderboard dataset · Oct 13, 2026 |
| Factuality | — | #— · Not enough data Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Abstraction (ARC) | — | #51 · #51 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
DeepSeek V3: price per 1M tokens is unset in the catalog.
O3 Mini: $1.9250000000000003 per 1M blended tokens.
DeepSeek V3: open weights.
O3 Mini: closed weights.
General LLM: As of Oct 15, 2026, O3 Mini leads DeepSeek V3 in General LLM at #10 against #12.
Science: As of Oct 15, 2026, O3 Mini leads DeepSeek V3 in Science at #76 against #114.
Long context: As of Oct 15, 2026, DeepSeek V3 leads O3 Mini in Long context at #185 against #186.
DeepSeek V3 or O3 Mini?
As of Oct 15, 2026, DeepSeek V3 leads O3 Mini in 1 of 3 shared categories: Long context.
DeepSeek V3 or O3 Mini for General LLM?
As of Oct 15, 2026, O3 Mini leads DeepSeek V3 in General LLM at #10 against #12.
DeepSeek V3 or O3 Mini for Science?
As of Oct 15, 2026, O3 Mini leads DeepSeek V3 in Science at #76 against #114.
DeepSeek V3 or O3 Mini for Long context?
As of Oct 15, 2026, DeepSeek V3 leads O3 Mini in Long context at #185 against #186.