GPT-4o-mini (2024-07-18) vs GPT-5 Mini
GPT-4o-mini (2024-07-18) costs 3.3x less per output token than GPT-5 Mini ($0.60 vs $2.00 per million). Updated October 22, 2026; 41 benchmarks have a result for both.
GPT-4o-mini (2024-07-18) or GPT-5 Mini: which to pick
Only GPT-5 Mini has a coding score, 34.2 on the Vibe Coding Index; GPT-4o-mini (2024-07-18) has none, so the two cannot be ranked on coding.
Pick GPT-4o-mini (2024-07-18) for output tokens 3.3x cheaper ($0.60 vs $2.00 per million) and work measured by Mystery game puzzles, where it leads.
- Shared results
- 41
- GPT-4o-mini (2024-07-18) only
- 5
- GPT-5 Mini only
- 60
- Like-for-like categories
- 5 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
Only GPT-5 Mini has a coding score, so no call is made.
One side not measured
Intelligence
AA Intelligence Index
No call
Only GPT-5 Mini has a AA Intelligence Index result, 20.6.
Directional only
Reasoning
GPQA Diamond
No call
Only GPT-5 Mini has a GPQA Diamond result, 80.3%.
Directional only
Math
AIME
No call
Only GPT-5 Mini has a AIME result, 91.5%.
Directional only
Knowledge
MMLU Pro
No call
Only GPT-5 Mini has a MMLU Pro result, 82.2%.
Directional only
Web design
Design Arena: websites
No call
Only GPT-5 Mini has a Design Arena: websites result, 1125.
Directional only
Long documents
Listed context window
GPT-5 Mini
GPT-5 Mini takes 400K tokens against 128K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
GPT-4o-mini (2024-07-18)
GPT-4o-mini (2024-07-18) $0.0004, GPT-5 Mini $0.0013 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only GPT-5 Mini has the number, $0.08.
Directional only
At a glance
- Coding index
- GPT-4o-mini (2024-07-18) not benchmarked, GPT-5 Mini 34.2 from 2 benchmarks.
- Widest category
- Math, 41.5 points apart on average over 5 shared benchmarks.
- Widest single gap
- OTIS Mock AIME: GPT-4o-mini (2024-07-18) 6.9% against GPT-5 Mini 86.7%, 79.7 points apart on a 0 to 100 scale.
- Output price
- GPT-4o-mini (2024-07-18) $0.60 against GPT-5 Mini $2.00 per million output tokens, 3.3x apart.
- Context window
- GPT-4o-mini (2024-07-18) takes 128K tokens, GPT-5 Mini 400K.
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 | GPT-4o-mini (2024-07-18) | Bars | GPT-5 Mini | Ties |
|---|---|---|---|---|
| Coding | 0 | 3 | ||
| Reasoning | 1 | 6 | ||
| Math | 0 | 5 | ||
| Knowledge | 0 | 5 | ||
| General | 0 | 21 | ||
| All shared boards | 1 | 40 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index03
| Benchmark | GPT-4o-mini (2024-07-18) | GPT-5 Mini | Leader |
|---|---|---|---|
| Aider polyglot | 3.6% | Not measured | Only GPT-4o-mini (2024-07-18) measured |
| SWE-bench Verified | Not measured | 59.8% | Only GPT-5 Mini measured |
| SWE-bench Multilingual | Not measured | 39.7% | Only GPT-5 Mini measured |
| LiveCodeBench (Vals AI) | Not measured | 86.6% | Only GPT-5 Mini measured |
| SWE-bench Verified (Vals AI) | Not measured | 60.8% | Only GPT-5 Mini measured |
| Vibe Code Bench (Vals AI) | Not measured | 14.2% | Only GPT-5 Mini measured |
| LiveCodeBench (Artificial Analysis run) | Not measured | 83.8% | Only GPT-5 Mini measured |
| SciCode | Not measured | 39.0% | Only GPT-5 Mini measured |
| Terminal-Bench Hard (Artificial Analysis run) | Not measured | 33.3% | Only GPT-5 Mini measured |
| Terminal-Bench | Not measured | 34.8% | Only GPT-5 Mini measured |
| WeirdML | 11.8% | 52.7% | GPT-5 Mini |
| LMArena Text: coding | 1290 | 1406 | GPT-5 Mini |
| LMArena Text: software and IT | 1291 | 1394 | GPT-5 Mini |
| Neither model has a result on the other 26 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
| Benchmark | GPT-4o-mini (2024-07-18) | GPT-5 Mini | Leader |
|---|---|---|---|
| AA Intelligence Index | Not measured | 20.6 | Only GPT-5 Mini measured |
| Epoch Capabilities Index | Not measured | 145.3 | Only GPT-5 Mini measured |
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index4 boards, none shared
| Benchmark | GPT-4o-mini (2024-07-18) | GPT-5 Mini | Leader |
|---|---|---|---|
| τ²-Bench Telecom | Not measured | 71.1% | Only GPT-5 Mini measured |
| BALROG | 17.4% | Not measured | Only GPT-4o-mini (2024-07-18) measured |
| Vending-Bench 2 | Not measured | -$31 | Only GPT-5 Mini measured |
| Berkeley Function Calling Leaderboard (BFCL) | Not measured | 55.5% | Only GPT-5 Mini measured |
| Neither model has a result on the other 37 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index16
| Benchmark | GPT-4o-mini (2024-07-18) | GPT-5 Mini | Leader |
|---|---|---|---|
| GPQA Diamond | Not measured | 80.3% | Only GPT-5 Mini measured |
| MMMU Pro (Vals AI) | Not measured | 78.9% | Only GPT-5 Mini measured |
| GPQA Diamond (Artificial Analysis run) | Not measured | 82.8% | Only GPT-5 Mini measured |
| Humanity's Last Exam (Artificial Analysis run) | Not measured | 21.5% | Only GPT-5 Mini measured |
| GPQA Diamond (Epoch AI run) | 37.7% | 75.0% | GPT-5 Mini |
| ARC-AGI | Not measured | 54.3% | Only GPT-5 Mini measured |
| ARC-AGI-2 | Not measured | 4.4% | Only GPT-5 Mini measured |
| SimpleBench | 10.7% | Not measured | Only GPT-4o-mini (2024-07-18) measured |
| Chess puzzles | 3.0% | 24.0% | GPT-5 Mini |
| Mystery game puzzles | 12.0% | 10.0% | GPT-4o-mini (2024-07-18) |
| VPCT | 34.0% | 40.2% | GPT-5 Mini |
| LMArena Text: hard prompts | 1267 | 1380 | GPT-5 Mini |
| LMArena Text: expert | 1234 | 1379 | GPT-5 Mini |
| LMArena Text: hard prompts in English | 1278 | 1383 | GPT-5 Mini |
| LMArena Vision: diagrams | Not measured | 1202 | Only GPT-5 Mini measured |
| LMArena Vision: homework | Not measured | 1210 | Only GPT-5 Mini measured |
| Kagi LLM Benchmark | Not measured | 70.3% | Only GPT-5 Mini measured |
| Neither model has a result on the other 5 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index05
| Benchmark | GPT-4o-mini (2024-07-18) | GPT-5 Mini | Leader |
|---|---|---|---|
| AIME | Not measured | 91.5% | Only GPT-5 Mini measured |
| MATH 500 (Vals AI) | Not measured | 94.8% | Only GPT-5 Mini measured |
| MGSM (Vals AI) | Not measured | 92.6% | Only GPT-5 Mini measured |
| AA Math Index | Not measured | 90.7 | Only GPT-5 Mini measured |
| AIME 2025 (Artificial Analysis run) | Not measured | 90.7% | Only GPT-5 Mini measured |
| OTIS Mock AIME | 6.9% | 86.7% | GPT-5 Mini |
| FrontierMath, tiers 1 to 3 | 0.7% | 46.7% | GPT-5 Mini |
| FrontierMath, tier 4 | Not measured | 12.2% | Only GPT-5 Mini measured |
| ProofBench | Not measured | 9.0% | Only GPT-5 Mini measured |
| MATH level 5 | 52.6% | 97.8% | GPT-5 Mini |
| LMArena Text: math | 1267 | 1378 | GPT-5 Mini |
| LMArena Text: mathematical work | 1271 | 1380 | GPT-5 Mini |
| Neither model has a result on the other 1 board here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index05
| Benchmark | GPT-4o-mini (2024-07-18) | GPT-5 Mini | Leader |
|---|---|---|---|
| MMLU Pro | Not measured | 82.2% | Only GPT-5 Mini measured |
| LegalBench (Vals AI) | Not measured | 81.8% | Only GPT-5 Mini measured |
| CaseLaw (Vals AI) | Not measured | 68.5% | Only GPT-5 Mini measured |
| CorpFin (Vals AI) | Not measured | 60.2% | Only GPT-5 Mini measured |
| TaxEval (Vals AI) | Not measured | 75.2% | Only GPT-5 Mini measured |
| MortgageTax (Vals AI) | Not measured | 66.9% | Only GPT-5 Mini measured |
| MedQA (Vals AI) | Not measured | 96.1% | Only GPT-5 Mini measured |
| MedCode (Vals AI) | Not measured | 43.0% | Only GPT-5 Mini measured |
| MMLU Pro (Artificial Analysis run) | Not measured | 83.7% | Only GPT-5 Mini measured |
| SimpleQA Verified | 8.3% | 21.6% | GPT-5 Mini |
| MMLU | 76.7% | Not measured | Only GPT-4o-mini (2024-07-18) measured |
| GeoBench | 64.0% | Not measured | Only GPT-4o-mini (2024-07-18) measured |
| LMArena Text: science | 1286 | 1371 | GPT-5 Mini |
| LMArena Text: medicine and healthcare | 1282 | 1380 | GPT-5 Mini |
| LMArena Text: legal and government | 1305 | 1375 | GPT-5 Mini |
| LMArena Text: business and finance | 1265 | 1358 | GPT-5 Mini |
| FACTS Benchmark Suite | Not measured | 38.6% | Only GPT-5 Mini measured |
| Neither model has a result on the other 1 board here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
| Benchmark | GPT-4o-mini (2024-07-18) | GPT-5 Mini | Leader |
|---|---|---|---|
| Design Arena: websites | Not measured | 1125 | Only GPT-5 Mini measured |
| Design Arena: UI components | Not measured | 1103 | Only GPT-5 Mini measured |
| Design Arena: game dev | Not measured | 1129 | Only GPT-5 Mini measured |
| Design Arena: data viz | Not measured | 1131 | Only GPT-5 Mini measured |
| Design Arena: 3D | Not measured | 1036 | Only GPT-5 Mini measured |
| Design Arena: all code categories | Not measured | 1114 | Only GPT-5 Mini measured |
| Design Arena: SVG | Not measured | 1091 | Only GPT-5 Mini measured |
| Design Arena: ASCII art | Not measured | 1125 | Only GPT-5 Mini measured |
| Neither model has a result on the other 1 board here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index021
| Benchmark | GPT-4o-mini (2024-07-18) | GPT-5 Mini | Leader |
|---|---|---|---|
| SAGE (Vals AI) | Not measured | 43.0% | Only GPT-5 Mini measured |
| MedScribe (Vals AI) | Not measured | 80.6% | Only GPT-5 Mini measured |
| IFBench | Not measured | 75.4% | Only GPT-5 Mini measured |
| Long context reasoning (AA-LCR) | Not measured | 72.3% | Only GPT-5 Mini measured |
| DTBench | Not measured | 80.5% | Only GPT-5 Mini measured |
| LMCA | Not measured | 34.2% | Only GPT-5 Mini measured |
| Fiction.LiveBench | Not measured | 69.4% | Only GPT-5 Mini measured |
| Creative writing (Lech Mazur) | 67.2% | 83.1% | GPT-5 Mini |
| LMArena Text | 1286 | 1373 | GPT-5 Mini |
| LMArena Text: instruction following | 1258 | 1357 | GPT-5 Mini |
| LMArena Text: creative writing | 1268 | 1325 | GPT-5 Mini |
| LMArena Vision | 1066 | 1202 | GPT-5 Mini |
| LMArena Text: English | 1301 | 1379 | GPT-5 Mini |
| LMArena Text: non-English | 1266 | 1363 | GPT-5 Mini |
| LMArena Text: Chinese | 1265 | 1386 | GPT-5 Mini |
| LMArena Text: German | 1272 | 1366 | GPT-5 Mini |
| LMArena Text: Japanese | 1216 | 1341 | GPT-5 Mini |
| LMArena Text: Korean | 1195 | 1308 | GPT-5 Mini |
| LMArena Text: French | 1297 | 1386 | GPT-5 Mini |
| LMArena Text: Spanish | 1276 | 1354 | GPT-5 Mini |
| LMArena Text: Russian | 1275 | 1362 | GPT-5 Mini |
| LMArena Text: Polish | 1244 | 1378 | GPT-5 Mini |
| LMArena Text: multi-turn | 1285 | 1363 | GPT-5 Mini |
| LMArena Text: longer queries | 1289 | 1355 | GPT-5 Mini |
| LMArena Text: writing and language | 1282 | 1344 | GPT-5 Mini |
| LMArena Text: entertainment and media | 1253 | 1340 | GPT-5 Mini |
| LMArena Vision: English | 1072 | 1216 | GPT-5 Mini |
| LMArena Vision: Chinese | 1033 | 1214 | GPT-5 Mini |
| LMArena Vision: reading text | Not measured | 1199 | Only GPT-5 Mini measured |
| LMArena Vision: humor | Not measured | 1205 | Only GPT-5 Mini measured |
| LMArena Vision: captioning | Not measured | 1217 | Only GPT-5 Mini measured |
| LMArena Vision: recognizing things | Not measured | 1226 | Only GPT-5 Mini measured |
| LMArena Vision: creative writing | Not measured | 1181 | Only GPT-5 Mini measured |
| Neither model has a result on the other 13 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | GPT-4o-mini (2024-07-18) | GPT-5 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
GPT-4o-mini (2024-07-18) costs less
Repository review
50K input + 3K output tokens
GPT-4o-mini (2024-07-18) costs less
Agent loop
200K input + 10K output tokens
GPT-4o-mini (2024-07-18) 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 | OpenAI GPT-4o-mini (2024-07-18) | OpenAI GPT-5 Mini |
|---|---|---|
| Maker | OpenAI | OpenAI |
| Weights | No public weights listed | No public weights listed |
| Released | July 18, 2024 | August 7, 2025 |
| Context window | 128K | 400K |
| Input $/Mtok | $0.15 | $0.25 |
| Output $/Mtok | $0.60 | $2.00 |
| Coding index | Not benchmarked | 34.2 |
| Independent measurements behind it | 0 | 2 |
| Cost per solved task | Not computable | $0.08 |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is GPT-4o-mini (2024-07-18) better than GPT-5 Mini for coding?
Only GPT-5 Mini has a coding score, 34.2 on the Vibe Coding Index; GPT-4o-mini (2024-07-18) has none, so the two cannot be ranked on coding. Pick GPT-4o-mini (2024-07-18) for output tokens 3.3x cheaper ($0.60 vs $2.00 per million) and work measured by Mystery game puzzles, where it leads.
Which is cheaper, GPT-4o-mini (2024-07-18) or GPT-5 Mini?
GPT-4o-mini (2024-07-18) costs $0.15 per million input tokens and $0.60 per million output tokens; GPT-5 Mini costs $0.25 and $2.00. Cost per solved task is known for GPT-5 Mini only.
Which has the bigger context window, GPT-4o-mini (2024-07-18) or GPT-5 Mini?
GPT-5 Mini, with 400K tokens against 128K.
How many benchmarks is the GPT-4o-mini (2024-07-18) vs GPT-5 Mini comparison based on?
41 benchmarks have a result for both models as of October 22, 2026. GPT-4o-mini (2024-07-18)'s coding index rests on 0 independent benchmarks and GPT-5 Mini's on 2. Where only one model has a result, the page says so instead of naming a winner.