gpt-oss-20bvsQwen3.6-Plus
gpt-oss-20b | Qwen3.6-Plus | |
|---|---|---|
| Specifications | ||
ParametersA rough measure of how big the model is. More parameters usually means more capable and more expensive to run, though it is a poor guide on its own — a smaller, newer model often beats a larger, older one. | 21B | — |
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view. | 128k | — |
| API pricingUSD per 1M tokens · lower wins · base tier | ||
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it. | — | $0.50 |
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one. | — | $3.00 |
Cheapest inputLowest input rate across third-party providers, excluding the lab itself. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | $0.03CoreWeave | — |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | $0.13CoreWeave | — |
| Benchmarks | ||
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 60.7% | 78.8% |
Humanity's Last Exam · with toolsMultidisciplinary reasoning — Humanity's Last Exam — extremely hard expert questions across many subjects. “With tools” means the AI is allowed to search the web or run code while answering. Higher is better. | 17.3% | 28.8% |
| BenchmarksPublished by one model only | ||
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 72% |
Humanity's Last Exam · no toolsMultidisciplinary reasoning — Humanity's Last Exam — extremely hard expert questions across many subjects, written so you can't just look up the answer. “No tools” means the AI answers on its own. Higher is better. | 10.9% | — |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 71.5% | — |
MMLUGeneral knowledge — A 57-subject multiple-choice exam — history, law, medicine, maths — that was the standard measure of how much a model knows from 2020 until roughly 2024, when frontier scores crowded into the high 80s and labs moved on to harder tests. The scores here were published years apart under different testing setups, so read them as a historical record rather than a like-for-like ranking. Higher is better. | 85.3% | — |
| Overview | ||
| Company | OpenAI | Qwen |
| Release date | Aug 5 2025 | Apr 2 2026 |
| Access | Open Weight | Proprietary |
Other comparisons
Frequently asked questions
Qwen3.6-Plus leads gpt-oss-20b on 2 of the 2 benchmarks they both report (SWE-Bench Verified, Humanity's Last Exam). Only Qwen3.6-Plus has a verified first-party API price: $0.50 per million input tokens and $3.00 per million output tokens. No pay-as-you-go API rate is tracked for gpt-oss-20b. gpt-oss-20b shipped 240 days before Qwen3.6-Plus, so benchmark comparisons should account for the intervening progress.
gpt-oss-20b is open weight, while Qwen3.6-Plus is proprietary.
On SWE-Bench Verified, Qwen3.6-Plus leads at 78.8% vs gpt-oss-20b at 60.7%. On Humanity's Last Exam · with tools, Qwen3.6-Plus leads at 28.8% vs gpt-oss-20b at 17.3%.
gpt-oss-20b was released by OpenAI on Aug 5 2025.
Qwen3.6-Plus was released by Qwen on Apr 2 2026.
Qwen3.6-Plus leads on SWE-Bench Verified — gpt-oss-20b 60.7% vs Qwen3.6-Plus 78.8%.
Qwen3.6-Plus leads on Humanity's Last Exam · with tools — gpt-oss-20b 17.3% vs Qwen3.6-Plus 28.8%.
Only Qwen3.6-Plus has a verified first-party API price: $0.50 per million input tokens and $3.00 per million output tokens. No pay-as-you-go API rate is tracked for gpt-oss-20b. Rates are pay-as-you-go API prices verified on August 18, 2026.
gpt-oss-20b is an open weight model released by OpenAI. Qwen3.6-Plus is a proprietary model released by Qwen.