GPT-5.2 vs Grok 4
Wins 7 of 8 areas
Coding · Agents · Reasoning · Images and charts · Math · Long documents · Following instructions
Wins 1 of 8 areas
Facts
GPT-5.2 is the stronger all-rounder.Grok 4 is better at facts.
Scores updated · 28 tests both models report · How we compare
Where each one wins
Tests won in each of the eight areas we test. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
- ReasoningHard problems that need careful thinking40GPT-5.24 of 4 tests
- CodingWriting and fixing software20GPT-5.22 of 2 tests
- Images and chartsUnderstanding pictures, charts and video20GPT-5.22 of 2 tests
- AgentsCarrying out multi-step tasks on its own10GPT-5.21 of 1 test
- MathCompetition and research-level math10GPT-5.21 of 1 test
- Long documentsFinding answers in very long texts10GPT-5.21 of 1 test
- Following instructionsDoing exactly what it is asked10GPT-5.21 of 1 test
- FactsGetting facts right instead of making them up12Grok 42 of 3 tests
Agents, math, long documents and following instructions rest on a single test each.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
GPT-5.2 costs 13% less for the same work.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where GPT-5.2 pulls ahead
Where Grok 4 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+16.7points ahead
- Short factual questions, answered correctlySimpleQA Verified+10.8points ahead
Every test, side by side
All 28 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGPT-5.2
- Terminal-Bench HardGPT-5.2 by 9.14737.9+9.1
- SciCodeGPT-5.2 by 6.452.145.7+6.4
ReasoningGPT-5.2
- ARC-AGI-2GPT-5.2 by 3752.915.9+37
- Humanity's Last ExamGPT-5.2 by 1137.726.7+11
- CritPtGPT-5.2 by 9.611.62+9.6
- GPQA DiamondGPT-5.2 by 2.690.387.7+2.6
FactsGrok 4
- AA-Omniscience · Non-hallucinationGrok 4 by 16.718.835.5+16.7
- SimpleQA VerifiedGrok 4 by 10.837.147.9+10.8
- AA-Omniscience · AccuracyGPT-5.2 by 3.844.340.5+3.8
Images and chartsGPT-5.2
- MMMU-ProGPT-5.2 by 5.874.668.8+5.8
- LMArena · VisionGPT-5.2 by 36 rating points12461210+36 rating
Other results13 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- ARC-AGI-1GPT-5.2 by 19.586.266.7+19.5
- AA Agentic IndexGPT-5.2 by 18.760.241.5+18.7
- frontiermath_tier_4_v1GPT-5.2 by 16.718.82.1+16.7
- matharena_visual_math_overallGPT-5.2 by 16.586.570+16.5
- LiveCodeBenchGPT-5.2 by 108979+10
- τ²-Bench Telecom (AA run)GPT-5.2 by 9.984.874.9+9.9
- HMMT 2025GPT-5.2 by 9.499.490+9.4
- AIME 2025GPT-5.2 by 8.310091.7+8.3
- Artificial Analysis Coding IndexGPT-5.2 by 8.248.740.5+8.2
- AA IntelligenceGPT-5.2 by 7.930.422.5+7.9
- HMMT Nov. 2025GPT-5.2 by 7.595.888.3+7.5
- AIME25 no toolsGPT-5.2 by 6.39891.7+6.3
- AA-OmniscienceGrok 4 by 3-0.92.1+3
Questions people ask
Which is better, GPT-5.2 or Grok 4?
GPT-5.2 wins seven of the eight areas we test: coding, agents, reasoning, images and charts, math, long documents and following instructions. Grok 4 wins facts.
Which is better for coding?
GPT-5.2. It wins 2 of the 2 coding tests both models report; Grok 4 wins none.
Which is cheaper?
GPT-5.2 costs $1.75 per million input tokens and $14.00 per million output tokens; Grok 4 costs $3.00 and $15.00. That makes GPT-5.2 about 13% cheaper for the same work.
How do you compare the two?
We use the 28 benchmark tests both models have published scores on. The verdict counts the 15 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 13 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.