Grok 4 Heavy vs GPT-5.2
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
Grok 4 Heavy
B
GPT-5.2
- ProviderxAIOpenAI
- Rank#57#52Higher rank
- TierAA
- Score74.977.1Higher score
- PriceSuperGrok Heavy subscription ($300/mo); not listed in the xAI API model catalogAPI $1.75 input / $14 output per 1M tokensLower price tier
- TaglinexAI'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.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.
| Attribute | Grok 4 Heavy | GPT-5.2 |
|---|---|---|
| Provider | xAI | OpenAI |
| Rank | #57 | #52Higher rank |
| Tier | A | A |
| Score | 74.9 | 77.1Higher score |
| Price | SuperGrok Heavy subscription ($300/mo); not listed in the xAI API model catalog | API $1.75 input / $14 output per 1M tokensLower price tier |
| Tagline | 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. | 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. |