GPT-5.2 vs Grok 4 Heavy
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
GPT-5.2
B
Grok 4 Heavy
- ProviderOpenAIxAI
- Rank#52Higher rank#57
- TierAA
- Score77.1Higher score74.9
- PriceAPI $1.75 input / $14 output per 1M tokensLower price tierSuperGrok Heavy subscription ($300/mo); not listed in the xAI API model catalog
- TaglineOpenAI's December 2025 flagship for complex professional work, since followed by GPT-5.4, GPT-5.5, the GPT-5.6 family and GPT-6 Astra.xAI's July 2025 Grok 4 variant that runs parallel test-time compute, offered through the SuperGrok Heavy plan; since followed by Grok 4.20, 4.5, 4.6 and 4.7.
| Attribute | GPT-5.2 | Grok 4 Heavy |
|---|---|---|
| Provider | OpenAI | xAI |
| Rank | #52Higher rank | #57 |
| Tier | A | A |
| Score | 77.1Higher score | 74.9 |
| Price | API $1.75 input / $14 output per 1M tokensLower price tier | SuperGrok Heavy subscription ($300/mo); not listed in the xAI API model catalog |
| Tagline | OpenAI's December 2025 flagship for complex professional work, since followed by GPT-5.4, GPT-5.5, the GPT-5.6 family and GPT-6 Astra. | xAI's July 2025 Grok 4 variant that runs parallel test-time compute, offered through the SuperGrok Heavy plan; since followed by Grok 4.20, 4.5, 4.6 and 4.7. |