Compare AI models
| 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 | 1T |
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 | 256k |
| 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. | — | $1.20 |
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. | — | $6.00 |
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. | $0.018Darkbloom | $0.78Alibaba |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | $0.09Darkbloom | $3.90Alibaba |
These models have no shared benchmark scores. | ||
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% | — |
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% | — |
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% | — |
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 | Sep 24 2025 |
| Access | Open Weight | Closed |
| Model details | View model | View model |
Other comparisons
gpt-oss-20bvsClaude Opus 5.5Qwen3-MaxvsClaude Opus 5.5gpt-oss-20bvsGemini 3.8 FlashQwen3-MaxvsGemini 3.8 Flashgpt-oss-20bvsMuse Spark 1.3Qwen3-MaxvsMuse Spark 1.3gpt-oss-20bvsGrok 4.7Qwen3-MaxvsGrok 4.7gpt-oss-20bvsDeepSeek-V4.1-FlashQwen3-MaxvsDeepSeek-V4.1-Flashgpt-oss-20bvsMistral Medium 3.5Qwen3-MaxvsMistral Medium 3.5Frequently asked questions
gpt-oss-20b and Qwen3-Max don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Only Qwen3-Max has a verified first-party API price: $1.20 per million input tokens and $6.00 per million output tokens. No pay-as-you-go API rate is tracked for gpt-oss-20b. gpt-oss-20b shipped 50 days before Qwen3-Max, so benchmark comparisons should account for the intervening progress.
gpt-oss-20b has 21B parameters, while Qwen3-Max has 1T. Context windows are 128k (gpt-oss-20b) vs 256k (Qwen3-Max). gpt-oss-20b is open weight, while Qwen3-Max is closed.
Direct benchmark comparisons are unavailable — gpt-oss-20b and Qwen3-Max don't publish scores on any of the same benchmarks.