# GPT-6.1 Terra vs Grok 4.6

> Side-by-side benchmark comparison for GPT-6.1 Terra and Grok 4.6 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-6-1-terra-vs-grok-4-6
- Last updated: October 26, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for GPT-6.1 Terra and Grok 4.6.

## Summary

- GPT-6.1 Terra and Grok 4.6 do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | GPT-6.1 Terra | Grok 4.6 |
|----------|----------|----------|
| Creator | OpenAI | xAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | 500K |
| Independent public score (not head-to-head) | 75.87 | 67.34 |
| Benchmarks Covered | 10 | 23 |
| Pricing (input/output) | $1.00 / $5.00 | $2.00 / $6.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: 72.4 (Estimated · #8/133)
- Grok 4.6 public-lane score: 69.7 (Supported · #10/133)

| Benchmark | GPT-6.1 Terra | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.0 | 50.30% | Coming soon | Coming soon |
| Terminal-Bench-Science 0.1 | 58.3% | Coming soon | Coming soon |
| Agents' Last Exam | 60.0% | Coming soon | Coming soon |
| OSWorld 2.1 Offline | 74.2% | Coming soon | Coming soon |
| Terminal-Bench 3.0 | Coming soon | 26.5% | Coming soon |
| APEX-Agents | Coming soon | 57.5% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 78.3% | Coming soon |
| ApprenticeBench | Coming soon | 13% | Coming soon |
| CWE-bench v1 | Coming soon | 57.0% | Coming soon |
| MazeBench | Coming soon | 1% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: Coming soon
- Grok 4.6 public-lane score: 58.6 (Supported · #24/154)

| Benchmark | GPT-6.1 Terra | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| Bug Hunt Bench | Coming soon | 27.0 fixes | Coming soon |
| DeepSWE | Coming soon | 65.9% | Coming soon |
| CursorBench 3.2 | Coming soon | 70.8% | Coming soon |
| FrontierCode 1.1 Extended | Coming soon | 61.3% | Coming soon |
| VulcanBench v3 | Coming soon | 87.0% | Coming soon |
| FrontierSWE v2 | Coming soon | 25.3% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 88.2% | Coming soon |
| SWE-bench (Vals) | Coming soon | 95.6% | Coming soon |
| CursorBench 4.0 | Coming soon | 41.4% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: 81.8 (Unranked · 2 rankable rows)
- Grok 4.6 public-lane score: 61.4 (#21/26)

| Benchmark | GPT-6.1 Terra | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | Coming soon | 87.00% | Coming soon |
| ARC-AGI-2 | Coming soon | 67.1% | Coming soon |
| ARC-AGI-3 | Coming soon | 2.1% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: 91.6 (#4/58)
- Grok 4.6 public-lane score: Coming soon

| Benchmark | GPT-6.1 Terra | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 85.5% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: 74.9 (Supported · #12/188)
- Grok 4.6 public-lane score: 68.5 (Supported · #21/188)

| Benchmark | GPT-6.1 Terra | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| HealthBench (raw) | 51.1% | Coming soon | Coming soon |
| HealthBench (length-adjusted) | 55.1% | Coming soon | Coming soon |
| HealthBench Professional | 62.7% | Coming soon | Coming soon |
| HealthBench Professional (raw) | 64.2% | Coming soon | Coming soon |
| HealthBench Hard | 31.4% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 94.7% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 89.4% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: Coming soon
- Grok 4.6 public-lane score: Coming soon

| Benchmark | GPT-6.1 Terra | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | Coming soon | 51.8% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: Coming soon
- Grok 4.6 public-lane score: 70.1 (Unranked · 2 rankable rows)

| Benchmark | GPT-6.1 Terra | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 65.965% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 31.707% | Coming soon |

## FAQ

### Can I compare GPT-6.1 Terra and Grok 4.6 on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [GPT-6.1 Terra vs GPT-6 Astra](/compare/gpt-6-1-terra-vs-gpt-6-astra)
- [Grok 4.6 vs GPT-6 Astra](/compare/gpt-6-astra-vs-grok-4-6)
- [GPT-6.1 Terra vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-gpt-6-1-terra)
- [Grok 4.6 vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-grok-4-6)

## Explore More

- [GPT-6.1 Terra profile](/models/gpt-6-1-terra)
- [Grok 4.6 profile](/models/grok-4-6)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)