GPT-3.5vsGrok 2.5
GPT-3.5 | Grok 2.5 | |
|---|---|---|
| API pricingUSD per 1M tokens · lower wins | ||
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. | $1.00Azure | — |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | $2.00Azure | — |
| Overview | ||
| Company | OpenAI | SpaceXAI |
| Release date | Nov 30 2022 | Aug 23 2025 |
| Access | Proprietary | Proprietary |
Other comparisons
Frequently asked questions
GPT-3.5 and Grok 2.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-3.5 shipped 997 days before Grok 2.5, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
Direct benchmark comparisons are unavailable — GPT-3.5 and Grok 2.5 don't publish scores on any of the same benchmarks.