DeepSeek V3 0324 vs o3 Mini
o3 Mini leads DeepSeek V3 0324 on the Artificial Analysis Intelligence Index, 12.5 to 9.7, and DeepSeek V3 0324 costs 4.1x less per output token ($1.07 vs $4.40 per million). Updated October 22, 2026; 30 benchmarks have a result for both.
DeepSeek V3 0324 or o3 Mini: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick DeepSeek V3 0324 for output tokens 4.1x cheaper ($1.07 vs $4.40 per million) and work measured by SWE-bench Verified or LiveCodeBench (Vals AI), where it leads.
- Shared results
- 30
- DeepSeek V3 0324 only
- 5
- o3 Mini only
- 41
- Like-for-like categories
- 7 of 9
Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.
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.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Neither has a coding score yet.
One side not measured
Intelligence
AA Intelligence Index
o3 Mini
o3 Mini leads, 12.5 against 9.7.
Same board, both measured
Agentic work
AA Agentic Index
No call
Only DeepSeek V3 0324 has a AA Agentic Index result, 0.8.
Directional only
Reasoning
GPQA Diamond
o3 Mini
o3 Mini leads, 75.5% against 61.6%.
Same board, both measured
Math
AIME
o3 Mini
o3 Mini leads, 86.5% against 52.2%.
Same board, both measured
Knowledge
MMLU Pro
DeepSeek V3 0324
DeepSeek V3 0324 leads, 79.5% against 78.7%.
Same board, both measured
Long documents
Listed context window
o3 Mini
o3 Mini takes 200K tokens against 164K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
DeepSeek V3 0324
DeepSeek V3 0324 $0.0008, o3 Mini $0.0033 per turn.
List prices
At a glance
- Coding index
- DeepSeek V3 0324 not benchmarked, o3 Mini not benchmarked.
- Widest category
- Math, 19.6 points apart on average over 5 shared benchmarks.
- Widest single gap
- OTIS Mock AIME: DeepSeek V3 0324 37.8% against o3 Mini 76.9%, 39.2 points apart on a 0 to 100 scale.
- Output price
- DeepSeek V3 0324 $1.07 against o3 Mini $4.40 per million output tokens, 4.1x apart.
- Context window
- DeepSeek V3 0324 takes 164K tokens, o3 Mini 200K.
Benchmark by benchmark
First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.
| Category | DeepSeek V3 0324 | Bars | o3 Mini | Ties |
|---|---|---|---|---|
| Coding | 1 | 5 | ||
| Intelligence | 0 | 1 | ||
| Agentic work | 1 | 0 | ||
| Reasoning | 1 | 4 | ||
| Math | 1 | 4 | ||
| Knowledge | 5 | 1 | ||
| General | 1 | 4 | 1 tie | |
| All shared boards | 10 | 19 | 1 tie |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index15
| Benchmark | DeepSeek V3 0324 | o3 Mini | Leader |
|---|---|---|---|
| Aider polyglot | Not measured | 60.4% | Only o3 Mini measured |
| SWE-bench Verified | 42.0% | 42.4% | o3 Mini |
| SWE-bench Lite | Not measured | 32.3% | Only o3 Mini measured |
| AA Coding Index | 21.2 | Not measured | Only DeepSeek V3 0324 measured |
| LiveCodeBench (Vals AI) | 65.5% | 71.5% | o3 Mini |
| LiveCodeBench (Artificial Analysis run) | 40.5% | 73.4% | o3 Mini |
| SciCode | 39.0% | 42.8% | o3 Mini |
| Terminal-Bench Hard (Artificial Analysis run) | 15.2% | 6.8% | DeepSeek V3 0324 |
| GSO-Bench | Not measured | 1.3% | Only o3 Mini measured |
| WeirdML | 36.1% | 43.7% | o3 Mini |
| Cybench | Not measured | 22.5% | Only o3 Mini measured |
| LMArena Text: coding | Not measured | 1378 | Only o3 Mini measured |
| LMArena Text: software and IT | Not measured | 1364 | Only o3 Mini measured |
| SciCode | Not measured | 7.7% | Only o3 Mini measured |
| Neither model has a result on the other 25 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | DeepSeek V3 0324 | o3 Mini | Leader |
|---|---|---|---|
| AA Intelligence Index | 9.7 | 12.5 | o3 Mini |
| Epoch Capabilities Index | Not measured | 140.2 | Only o3 Mini measured |
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | DeepSeek V3 0324 | o3 Mini | Leader |
|---|---|---|---|
| AA Agentic Index | 0.8 | Not measured | Only DeepSeek V3 0324 measured |
| τ²-Bench Telecom | 47.1% | 31.3% | DeepSeek V3 0324 |
| METR time horizons | 49.6% | Not measured | Only DeepSeek V3 0324 measured |
| Neither model has a result on the other 38 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index14
| Benchmark | DeepSeek V3 0324 | o3 Mini | Leader |
|---|---|---|---|
| GPQA Diamond | 61.6% | 75.5% | o3 Mini |
| GPQA Diamond (Artificial Analysis run) | 65.5% | 77.3% | o3 Mini |
| Humanity's Last Exam (Artificial Analysis run) | 4.7% | 12.0% | o3 Mini |
| GPQA Diamond (Epoch AI run) | 67.6% | 77.0% | o3 Mini |
| ARC-AGI | Not measured | 34.5% | Only o3 Mini measured |
| ARC-AGI-2 | Not measured | 3.0% | Only o3 Mini measured |
| SimpleBench | 27.2% | 22.8% | DeepSeek V3 0324 |
| Chess puzzles | Not measured | 15.0% | Only o3 Mini measured |
| Mystery game puzzles | Not measured | 7.0% | Only o3 Mini measured |
| LMArena Text: hard prompts | Not measured | 1365 | Only o3 Mini measured |
| LMArena Text: expert | Not measured | 1364 | Only o3 Mini measured |
| LMArena Text: hard prompts in English | Not measured | 1375 | Only o3 Mini measured |
| Neither model has a result on the other 10 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index14
| Benchmark | DeepSeek V3 0324 | o3 Mini | Leader |
|---|---|---|---|
| AIME | 52.2% | 86.5% | o3 Mini |
| MATH 500 (Vals AI) | 88.6% | 91.8% | o3 Mini |
| MGSM (Vals AI) | 91.7% | 91.3% | DeepSeek V3 0324 |
| AA Math Index | 41.0 | Not measured | Only DeepSeek V3 0324 measured |
| AIME 2025 (Artificial Analysis run) | 41.0% | Not measured | Only DeepSeek V3 0324 measured |
| OTIS Mock AIME | 37.8% | 76.9% | o3 Mini |
| FrontierMath, tiers 1 to 3 | Not measured | 18.6% | Only o3 Mini measured |
| FrontierMath, tier 4 | Not measured | 0.0% | Only o3 Mini measured |
| MATH level 5 | 75.5% | 96.5% | o3 Mini |
| LMArena Text: math | Not measured | 1396 | Only o3 Mini measured |
| LMArena Text: mathematical work | Not measured | 1399 | Only o3 Mini measured |
| Neither model has a result on the other 2 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index51
| Benchmark | DeepSeek V3 0324 | o3 Mini | Leader |
|---|---|---|---|
| MMLU Pro | 79.5% | 78.7% | DeepSeek V3 0324 |
| LegalBench (Vals AI) | 77.7% | 71.5% | DeepSeek V3 0324 |
| CorpFin (Vals AI) | 54.7% | 45.3% | DeepSeek V3 0324 |
| TaxEval (Vals AI) | 71.1% | 69.4% | DeepSeek V3 0324 |
| MedQA (Vals AI) | 82.0% | 94.8% | o3 Mini |
| MMLU Pro (Artificial Analysis run) | 81.9% | 80.2% | DeepSeek V3 0324 |
| SimpleQA Verified | Not measured | 15.3% | Only o3 Mini measured |
| LMArena Text: science | Not measured | 1339 | Only o3 Mini measured |
| LMArena Text: medicine and healthcare | Not measured | 1330 | Only o3 Mini measured |
| LMArena Text: legal and government | Not measured | 1328 | Only o3 Mini measured |
| LMArena Text: business and finance | Not measured | 1313 | Only o3 Mini measured |
| Neither model has a result on the other 7 boards here | |||
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | DeepSeek V3 0324 | o3 Mini | Leader |
|---|---|---|---|
| Neither model has a result on 9 boards here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index14
| Benchmark | DeepSeek V3 0324 | o3 Mini | Leader |
|---|---|---|---|
| IFBench | 41.0% | 67.1% | o3 Mini |
| Long context reasoning (AA-LCR) | 40.7% | 43.0% | o3 Mini |
| DTBench | 64.8% | 68.8% | o3 Mini |
| LMCA | 15.5% | 19.0% | o3 Mini |
| Fiction.LiveBench | 50.0% | 50.0% | Tie |
| Creative writing (Lech Mazur) | 77.0% | 61.7% | DeepSeek V3 0324 |
| LMArena Text | Not measured | 1337 | Only o3 Mini measured |
| LMArena Text: instruction following | Not measured | 1337 | Only o3 Mini measured |
| LMArena Text: creative writing | Not measured | 1286 | Only o3 Mini measured |
| LMArena Text: English | Not measured | 1351 | Only o3 Mini measured |
| LMArena Text: non-English | Not measured | 1319 | Only o3 Mini measured |
| LMArena Text: Chinese | Not measured | 1379 | Only o3 Mini measured |
| LMArena Text: German | Not measured | 1303 | Only o3 Mini measured |
| LMArena Text: Japanese | Not measured | 1286 | Only o3 Mini measured |
| LMArena Text: Korean | Not measured | 1313 | Only o3 Mini measured |
| LMArena Text: French | Not measured | 1334 | Only o3 Mini measured |
| LMArena Text: Spanish | Not measured | 1321 | Only o3 Mini measured |
| LMArena Text: Russian | Not measured | 1304 | Only o3 Mini measured |
| LMArena Text: Polish | Not measured | 1294 | Only o3 Mini measured |
| LMArena Text: multi-turn | Not measured | 1320 | Only o3 Mini measured |
| LMArena Text: longer queries | Not measured | 1343 | Only o3 Mini measured |
| LMArena Text: writing and language | Not measured | 1313 | Only o3 Mini measured |
| LMArena Text: entertainment and media | Not measured | 1283 | Only o3 Mini measured |
| Neither model has a result on the other 23 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | DeepSeek V3 0324 | o3 Mini | Leader |
|---|---|---|---|
| Neither model has a result on 5 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 0324 costs less
Repository review
50K input + 3K output tokens
DeepSeek V3 0324 costs less
Agent loop
200K input + 10K output tokens
DeepSeek V3 0324 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.
| Specification | DeepSeek V3 0324 | OpenAI o3 Mini |
|---|---|---|
| Maker | DeepSeek | OpenAI |
| Weights | Open weights | No public weights listed |
| Released | March 24, 2025 | January 31, 2025 |
| Context window | 164K | 200K |
| Input $/Mtok | $0.27 | $1.10 |
| Output $/Mtok | $1.07 | $4.40 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 0 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is DeepSeek V3 0324 better than o3 Mini for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick DeepSeek V3 0324 for output tokens 4.1x cheaper ($1.07 vs $4.40 per million) and work measured by SWE-bench Verified or LiveCodeBench (Vals AI), where it leads.
Which is cheaper, DeepSeek V3 0324 or o3 Mini?
DeepSeek V3 0324 costs $0.27 per million input tokens and $1.07 per million output tokens; o3 Mini costs $1.10 and $4.40. Cost per solved task is known for neither of them.
Which has the bigger context window, DeepSeek V3 0324 or o3 Mini?
o3 Mini, with 200K tokens against 164K.
How many benchmarks is the DeepSeek V3 0324 vs o3 Mini comparison based on?
30 benchmarks have a result for both models as of October 22, 2026. DeepSeek V3 0324's coding index rests on 0 independent benchmarks and o3 Mini's on 0. Where only one model has a result, the page says so instead of naming a winner.