gpt-oss-20b vs Qwen3 30B A3B Instruct 2507
gpt-oss-20b leads Qwen3 30B A3B Instruct 2507 on the Artificial Analysis Intelligence Index, 10.0 to 7.5, and gpt-oss-20b costs 2.0x less per output token ($0.15 vs $0.30 per million). Updated October 23, 2026; 43 benchmarks have a result for both.
gpt-oss-20b or Qwen3 30B A3B Instruct 2507: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick gpt-oss-20b for output tokens 2.0x cheaper ($0.15 vs $0.30 per million) and work measured by LMArena Text: coding or LMArena Text: software and IT, where it leads.
- Shared results
- 43
- gpt-oss-20b only
- 20
- Qwen3 30B A3B Instruct 2507 only
- 2
- 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
gpt-oss-20b
gpt-oss-20b leads, 10.0 against 7.5.
Same board, both measured
Reasoning
GPQA Diamond
No call
Only gpt-oss-20b has a GPQA Diamond result, 68.9%.
Directional only
Math
AIME
No call
Only gpt-oss-20b has a AIME result, 86.0%.
Directional only
Knowledge
MMLU Pro
No call
Only gpt-oss-20b has a MMLU Pro result, 71.6%.
Directional only
Web design
Design Arena: websites
No call
Only gpt-oss-20b has a Design Arena: websites result, 852.
Directional only
Long documents
Listed context window
Qwen3 30B A3B Instruct 2507
Qwen3 30B A3B Instruct 2507 takes 262K tokens against 131K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
gpt-oss-20b
gpt-oss-20b $0.0001, Qwen3 30B A3B Instruct 2507 $0.0002 per turn.
List prices
At a glance
- Coding index
- gpt-oss-20b not benchmarked, Qwen3 30B A3B Instruct 2507 not benchmarked.
- Widest category
- Agentic work, 32.2 points apart on average over 1 shared benchmark.
- Widest single gap
- τ²-Bench Telecom: gpt-oss-20b 60.2% against Qwen3 30B A3B Instruct 2507 28.1%, 32.2 points apart on a 0 to 100 scale.
- Output price
- gpt-oss-20b $0.15 against Qwen3 30B A3B Instruct 2507 $0.30 per million output tokens, 2.0x apart.
- Context window
- gpt-oss-20b takes 131K tokens, Qwen3 30B A3B Instruct 2507 262K.
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-oss-20b | Bars | Qwen3 30B A3B Instruct 2507 | Ties |
|---|---|---|---|---|
| Coding | 3 | 2 | ||
| Intelligence | 1 | 0 | ||
| Agentic work | 1 | 0 | ||
| Reasoning | 2 | 4 | ||
| Math | 3 | 2 | ||
| Knowledge | 0 | 5 | ||
| General | 2 | 18 | ||
| All shared boards | 12 | 31 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index32
| Benchmark | gpt-oss-20b | Qwen3 30B A3B Instruct 2507 | Leader |
|---|---|---|---|
| LiveCodeBench (Vals AI) | 80.4% | Not measured | Only gpt-oss-20b measured |
| LiveCodeBench (Artificial Analysis run) | 77.7% | 70.7% | gpt-oss-20b |
| SciCode | 38.9% | 33.0% | gpt-oss-20b |
| Terminal-Bench Hard (Artificial Analysis run) | 10.6% | 6.1% | gpt-oss-20b |
| Terminal-Bench | 3.4% | Not measured | Only gpt-oss-20b measured |
| WeirdML | 40.9% | Not measured | Only gpt-oss-20b measured |
| ALE-Bench | 566.0 | Not measured | Only gpt-oss-20b measured |
| LMArena Text: coding | 1306 | 1416 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: software and IT | 1311 | 1417 | Qwen3 30B A3B Instruct 2507 |
| Neither model has a result on the other 34 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | gpt-oss-20b | Qwen3 30B A3B Instruct 2507 | Leader |
|---|---|---|---|
| AA Intelligence Index | 10.0 | 7.5 | gpt-oss-20b |
| Epoch Capabilities Index | 137.7 | Not measured | Only gpt-oss-20b measured |
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | gpt-oss-20b | Qwen3 30B A3B Instruct 2507 | Leader |
|---|---|---|---|
| τ²-Bench Telecom | 60.2% | 28.1% | gpt-oss-20b |
| Berkeley Function Calling Leaderboard (BFCL) | Not measured | 41.4% | Only Qwen3 30B A3B Instruct 2507 measured |
| BrowseComp-Plus | 50.6% | Not measured | Only gpt-oss-20b measured |
| Neither model has a result on the other 39 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index24
| Benchmark | gpt-oss-20b | Qwen3 30B A3B Instruct 2507 | Leader |
|---|---|---|---|
| GPQA Diamond | 68.9% | Not measured | Only gpt-oss-20b measured |
| GPQA Diamond (Artificial Analysis run) | 68.8% | 70.7% | Qwen3 30B A3B Instruct 2507 |
| Humanity's Last Exam (Artificial Analysis run) | 11.0% | 10.3% | gpt-oss-20b |
| GPQA Diamond (Epoch AI run) | 60.8% | 55.6% | gpt-oss-20b |
| LMArena Text: hard prompts | 1274 | 1398 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: expert | 1258 | 1396 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: hard prompts in English | 1292 | 1406 | Qwen3 30B A3B Instruct 2507 |
| Kagi LLM Benchmark | 53.2% | Not measured | Only gpt-oss-20b measured |
| Neither model has a result on the other 15 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index32
| Benchmark | gpt-oss-20b | Qwen3 30B A3B Instruct 2507 | Leader |
|---|---|---|---|
| AIME | 86.0% | Not measured | Only gpt-oss-20b measured |
| MATH 500 (Vals AI) | 94.2% | Not measured | Only gpt-oss-20b measured |
| MGSM (Vals AI) | 89.0% | Not measured | Only gpt-oss-20b measured |
| AA Math Index | 89.3 | 66.3 | gpt-oss-20b |
| AIME 2025 (Artificial Analysis run) | 89.3% | 66.3% | gpt-oss-20b |
| OTIS Mock AIME | 65.3% | 62.2% | gpt-oss-20b |
| LMArena Text: math | 1317 | 1395 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: mathematical work | 1305 | 1412 | Qwen3 30B A3B Instruct 2507 |
| MathArena | 12.8% | Not measured | Only gpt-oss-20b measured |
| Neither model has a result on the other 5 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index05
| Benchmark | gpt-oss-20b | Qwen3 30B A3B Instruct 2507 | Leader |
|---|---|---|---|
| MMLU Pro | 71.6% | Not measured | Only gpt-oss-20b measured |
| LegalBench (Vals AI) | 70.8% | Not measured | Only gpt-oss-20b measured |
| CaseLaw (Vals AI) | 43.8% | Not measured | Only gpt-oss-20b measured |
| CorpFin (Vals AI) | 53.1% | Not measured | Only gpt-oss-20b measured |
| TaxEval (Vals AI) | 63.7% | Not measured | Only gpt-oss-20b measured |
| MedQA (Vals AI) | 82.9% | Not measured | Only gpt-oss-20b measured |
| MMLU Pro (Artificial Analysis run) | 74.8% | 80.5% | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: science | 1296 | 1393 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: medicine and healthcare | 1310 | 1392 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: legal and government | 1280 | 1387 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: business and finance | 1283 | 1389 | Qwen3 30B A3B Instruct 2507 |
| Neither model has a result on the other 9 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
| Benchmark | gpt-oss-20b | Qwen3 30B A3B Instruct 2507 | Leader |
|---|---|---|---|
| Design Arena: websites | 852 | Not measured | Only gpt-oss-20b measured |
| Design Arena: data viz | 933 | Not measured | Only gpt-oss-20b measured |
| Neither model has a result on the other 7 boards here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index218
| Benchmark | gpt-oss-20b | Qwen3 30B A3B Instruct 2507 | Leader |
|---|---|---|---|
| IFBench | 65.1% | 50.7% | gpt-oss-20b |
| Long context reasoning (AA-LCR) | 34.7% | 61.3% | Qwen3 30B A3B Instruct 2507 |
| DTBench | 68.0% | 67.2% | gpt-oss-20b |
| LMCA | 14.5% | 22.4% | Qwen3 30B A3B Instruct 2507 |
| LMArena Text | 1287 | 1384 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: instruction following | 1236 | 1363 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: creative writing | 1201 | 1317 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: English | 1303 | 1391 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: non-English | 1268 | 1372 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: Chinese | 1315 | 1433 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: German | 1255 | 1379 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: Japanese | 1244 | 1338 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: Korean | 1234 | 1331 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: French | Not measured | 1419 | Only Qwen3 30B A3B Instruct 2507 measured |
| LMArena Text: Spanish | 1267 | 1404 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: Russian | 1278 | 1369 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: Polish | 1252 | 1353 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: multi-turn | 1268 | 1378 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: longer queries | 1250 | 1378 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: writing and language | 1238 | 1336 | Qwen3 30B A3B Instruct 2507 |
| LMArena Text: entertainment and media | 1216 | 1334 | Qwen3 30B A3B Instruct 2507 |
| Neither model has a result on the other 27 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | gpt-oss-20b | Qwen3 30B A3B Instruct 2507 | 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-oss-20b costs less
Repository review
50K input + 3K output tokens
gpt-oss-20b costs less
Agent loop
200K input + 10K output tokens
gpt-oss-20b 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-oss-20b | Qwen3 30B A3B Instruct 2507 |
|---|---|---|
| Maker | OpenAI | Qwen |
| Weights | Open weights | Open weights |
| Released | August 5, 2025 | July 29, 2025 |
| Context window | 131K | 262K |
| Input $/Mtok | $0.03 | $0.09 |
| Output $/Mtok | $0.15 | $0.30 |
| 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 gpt-oss-20b better than Qwen3 30B A3B Instruct 2507 for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick gpt-oss-20b for output tokens 2.0x cheaper ($0.15 vs $0.30 per million) and work measured by LMArena Text: coding or LMArena Text: software and IT, where it leads.
Which is cheaper, gpt-oss-20b or Qwen3 30B A3B Instruct 2507?
gpt-oss-20b costs $0.03 per million input tokens and $0.15 per million output tokens; Qwen3 30B A3B Instruct 2507 costs $0.09 and $0.30. Cost per solved task is known for neither of them.
Which has the bigger context window, gpt-oss-20b or Qwen3 30B A3B Instruct 2507?
Qwen3 30B A3B Instruct 2507, with 262K tokens against 131K.
How many benchmarks is the gpt-oss-20b vs Qwen3 30B A3B Instruct 2507 comparison based on?
43 benchmarks have a result for both models as of October 23, 2026. gpt-oss-20b's coding index rests on 0 independent benchmarks and Qwen3 30B A3B Instruct 2507's on 0. Where only one model has a result, the page says so instead of naming a winner.