DeepSeek R1-0528vsGPT-5-Codex
DeepSeek R1-0528 | GPT-5-Codex | |
|---|---|---|
| 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. | $0.50DeepInfra | — |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | $2.15DeepInfra | — |
| 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. | 8% | 39% |
| Overview | ||
| Company | DeepSeek | OpenAI |
| Release date | May 28 2025 | Sep 15 2025 |
| Access | Open Weight | Proprietary |
Other comparisons
DeepSeek R1-0528vsClaude Opus 5GPT-5-CodexvsClaude Opus 5DeepSeek R1-0528vsGemini 3.7 FlashGPT-5-CodexvsGemini 3.7 FlashDeepSeek R1-0528vsMuse GlimmerGPT-5-CodexvsMuse GlimmerDeepSeek R1-0528vsGrok 4.6GPT-5-CodexvsGrok 4.6DeepSeek R1-0528vsMistral Medium 3.5GPT-5-CodexvsMistral Medium 3.5DeepSeek R1-0528vsKimi K3GPT-5-CodexvsKimi K3
Frequently asked questions
GPT-5-Codex leads DeepSeek R1-0528 on 1 of the 1 benchmark they both report (BullshitBench v2). DeepSeek R1-0528 shipped 110 days before GPT-5-Codex, so benchmark comparisons should account for the intervening progress.
DeepSeek R1-0528 is open weight, while GPT-5-Codex is proprietary.
On BullshitBench v2, GPT-5-Codex leads at 39% vs DeepSeek R1-0528 at 8%.
DeepSeek R1-0528 was released by DeepSeek on May 28 2025.
GPT-5-Codex was released by OpenAI on Sep 15 2025.
DeepSeek R1-0528 is an open weight model released by DeepSeek. GPT-5-Codex is a proprietary model released by OpenAI.