# GPT-6.1 Terra vs Granite 4.2 8B

> Side-by-side benchmark comparison for GPT-6.1 Terra and Granite 4.2 8B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-6-1-terra-vs-granite-4-2-8b
- 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 Granite 4.2 8B.

## Summary

- GPT-6.1 Terra and Granite 4.2 8B 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 | Granite 4.2 8B |
|----------|----------|----------|
| Creator | OpenAI | IBM |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | 128K |
| Independent public score (not head-to-head) | 75.87 | 32.76 |
| Benchmarks Covered | 10 | 14 |
| Pricing (input/output) | $1.00 / $5.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: 72.4 (Estimated · #8/133)
- Granite 4.2 8B public-lane score: 16.2 (Estimated · #118/133)

| Benchmark | GPT-6.1 Terra | Granite 4.2 8B | 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 2.1 | Coming soon | 20.6% | Coming soon |
| τ³-bench results | Coming soon | 58.1% | Coming soon |
| BFCL v4 | Coming soon | 52.4% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: Coming soon
- Granite 4.2 8B public-lane score: 17.7 (Estimated · #129/154)

| Benchmark | GPT-6.1 Terra | Granite 4.2 8B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | Coming soon | 47.7% | Coming soon |
| SWE-bench Pro | Coming soon | 19.1% | Coming soon |
| SWE Multilingual | Coming soon | 30.8% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 20.6% | Coming soon |
| LiveCodeBench v6 | Coming soon | 73.2% | Coming soon |
| SciCode | Coming soon | 36.1% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: 81.8 (Unranked · 2 rankable rows)
- Granite 4.2 8B public-lane score: 55.9 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: 91.6 (#4/58)
- Granite 4.2 8B public-lane score: Coming soon

| Benchmark | GPT-6.1 Terra | Granite 4.2 8B | 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)
- Granite 4.2 8B public-lane score: 29.9 (Supported · #158/188)

| Benchmark | GPT-6.1 Terra | Granite 4.2 8B | 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 | Coming soon | 64.1% | Coming soon |
| MMLU-Pro | Coming soon | 74.0% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: Coming soon
- Granite 4.2 8B public-lane score: 86.5 (#45/155)

| Benchmark | GPT-6.1 Terra | Granite 4.2 8B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 79.3% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: Coming soon
- Granite 4.2 8B public-lane score: Coming soon

| Benchmark | GPT-6.1 Terra | Granite 4.2 8B | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | Coming soon | 86.7% | Coming soon |
| HMMT Feb 2025 | Coming soon | 78.3% | Coming soon |

## FAQ

### Can I compare GPT-6.1 Terra and Granite 4.2 8B 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)
- [Granite 4.2 8B vs GPT-6 Astra](/compare/gpt-6-astra-vs-granite-4-2-8b)
- [GPT-6.1 Terra vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-gpt-6-1-terra)
- [Granite 4.2 8B vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-granite-4-2-8b)

## Explore More

- [GPT-6.1 Terra profile](/models/gpt-6-1-terra)
- [Granite 4.2 8B profile](/models/granite-4-2-8b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)