# GPT-5.2-Codex vs Grok Build 0.1

> Side-by-side benchmark comparison for GPT-5.2-Codex and Grok Build 0.1 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-2-codex-vs-grok-build-0-1
- Last updated: October 2, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: GPT-5.2-Codex and Grok Build 0.1 share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Grok Build 0.1 has the lower published output-token price.
- GPT-5.2-Codex has the larger published context window at 400K.

## Model Snapshot

| Property | GPT-5.2-Codex | Grok Build 0.1 |
|----------|----------|----------|
| Creator | OpenAI | xAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 400K | 256K |
| Independent public score (not head-to-head) | 56.76 | null |
| Benchmarks Covered | 5 | 1 |
| Pricing (input/output) | $1.75 / $14.00 | $1.00 / $2.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 40.3 (Estimated · #57/119)
- Grok Build 0.1 public-lane score: 27.8 (Estimated · #87/119)

| Benchmark | GPT-5.2-Codex | Grok Build 0.1 | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 51.79% | 49.15% | GPT-5.2-Codex |
| JobBench | 26.0% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 46.5 (Supported · #49/144)
- Grok Build 0.1 public-lane score: 25.2 (Estimated · #106/144)

| Benchmark | GPT-5.2-Codex | Grok Build 0.1 | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 37.91% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 88.0% | Coming soon | Coming soon |
| SWE-bench (Vals) | 72.4% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 78.9 (Unranked · 2 rankable rows)
- Grok Build 0.1 public-lane score: Coming soon

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 73.5 (Unranked · 1 rankable row)
- Grok Build 0.1 public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 55.5 (Estimated · #49/171)
- Grok Build 0.1 public-lane score: Coming soon

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 92.4 (#3/125)
- Grok Build 0.1 public-lane score: Coming soon

## FAQ

### Is there enough evidence to pick between GPT-5.2-Codex and Grok Build 0.1?

Not yet. The models share only 1 sourced benchmark row, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [GPT-5.2-Codex vs GPT-6 Astra](/compare/gpt-5-2-codex-vs-gpt-6-astra)
- [Grok Build 0.1 vs GPT-6 Astra](/compare/gpt-6-astra-vs-grok-build-0-1)
- [GPT-5.2-Codex vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gpt-5-2-codex)
- [Grok Build 0.1 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-grok-build-0-1)

## Explore More

- [GPT-5.2-Codex profile](/models/gpt-5-2-codex)
- [Grok Build 0.1 profile](/models/grok-build-0-1)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)