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. | — | 235B |
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. | $2.00 | $0.70 |
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. | $8.00 | $2.80 |
Cached input priceA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again. | $0.50 | — |
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. | $2.00OpenAI | $0.0482StreamLake |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | $8.00OpenAI | $0.1931StreamLake |
| Benchmarks | ||
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. | 26% | 6% |
| Overview | ||
| Company | OpenAI | Qwen |
| Release date | Apr 16 2025 | Apr 29 2025 |
| Access | Closed | Open Weight |
| Model details | View model | View model |
Frequently asked questions
o3 leads Qwen3 on 1 of the 1 benchmark they both report (BullshitBench v2). Qwen3 is cheaper on both input and output: $0.70 vs $2.00 per million input tokens, and $2.80 vs $8.00 per million output tokens. Figures are base-tier rates. o3 shipped 13 days before Qwen3, so benchmark comparisons should account for the intervening progress.
o3 is closed, while Qwen3 is open weight.
On BullshitBench v2, o3 leads at 26% vs Qwen3 at 6%.