Compare AI models
| Specifications | ||
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 | 128k |
| API pricingUSD per 1M tokens · lower wins | ||
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it. | $10.00 | $2.50 |
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. | $30.00 | $10.00 |
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. | — | $1.25 |
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. | $10.00OpenAI | $2.50Azure |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | $30.00OpenAI | $10.00Azure |
| Benchmarks | ||
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 42.5% | 49.9% |
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. | — | 12% |
| Overview | ||
| Company | OpenAI | OpenAI |
| Release date | Nov 6 2023 | May 13 2024 |
| Access | Closed | Closed |
| Model details | View model | View model |
Other comparisons
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GPT-4o leads GPT-4 Turbo on 1 of the 1 benchmark they both report (GPQA Diamond). GPT-4o is cheaper on both input and output: $2.50 vs $10.00 per million input tokens, and $10.00 vs $30.00 per million output tokens. GPT-4 Turbo shipped 189 days before GPT-4o, so benchmark comparisons should account for the intervening progress.
Context windows are 128k (GPT-4 Turbo) vs 128k (GPT-4o).
On GPQA Diamond, GPT-4o leads at 49.9% vs GPT-4 Turbo at 42.5%.