# GPT-6.1 Terra vs Nemotron 3.5 Bolt E4B

> Side-by-side benchmark comparison for GPT-6.1 Terra and Nemotron 3.5 Bolt E4B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-6-1-terra-vs-nemotron-3-5-bolt-e4b
- 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 Nemotron 3.5 Bolt E4B.

## Summary

- GPT-6.1 Terra and Nemotron 3.5 Bolt E4B 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 | Nemotron 3.5 Bolt E4B |
|----------|----------|----------|
| Creator | OpenAI | NVIDIA |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | 64K |
| Independent public score (not head-to-head) | 75.87 | null |
| Benchmarks Covered | 10 | 19 |
| Pricing (input/output) | $1.00 / $5.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: 72.4 (Estimated · #8/133)
- Nemotron 3.5 Bolt E4B public-lane score: Coming soon

| Benchmark | GPT-6.1 Terra | Nemotron 3.5 Bolt E4B | 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 |
| BFCL v3 | Coming soon | 67.3% | Coming soon |
| When2Call Multi-Turn | Coming soon | 60.50% | Coming soon |
| ToolSandbox | Coming soon | 74.13% | Coming soon |
| τ²-bench results | Coming soon | 52.3% | Coming soon |
| RelyToolBench | Coming soon | 69.29% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: 81.8 (Unranked · 2 rankable rows)
- Nemotron 3.5 Bolt E4B public-lane score: 22.6 (Unranked · 1 rankable row)

| Benchmark | GPT-6.1 Terra | Nemotron 3.5 Bolt E4B | Winner |
|-----------|-----------|-----------|--------|
| RULER (64K) | Coming soon | 85.76% | Coming soon |
| LongMemEval | Coming soon | 69.92% | Coming soon |
| LongBench v2 | Coming soon | 48.7% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: 91.6 (#4/58)
- Nemotron 3.5 Bolt E4B public-lane score: Coming soon

| Benchmark | GPT-6.1 Terra | Nemotron 3.5 Bolt E4B | 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)
- Nemotron 3.5 Bolt E4B public-lane score: Coming soon

| Benchmark | GPT-6.1 Terra | Nemotron 3.5 Bolt E4B | 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 |
| GaRAGe | Coming soon | 40.73% | Coming soon |
| RAGTruth (provider reports) | Coming soon | 77.88% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-6.1 Terra public-lane score: Coming soon
- Nemotron 3.5 Bolt E4B public-lane score: 0 (#154/155)

| Benchmark | GPT-6.1 Terra | Nemotron 3.5 Bolt E4B | Winner |
|-----------|-----------|-----------|--------|
| MultiChallenge (provider reports) | Coming soon | 55.60% | Coming soon |
| Brevity Benchmark | Coming soon | 82.84% | Coming soon |
| RoleBench | Coming soon | 71.21% | Coming soon |
| RoleMRC | Coming soon | 79.12% | Coming soon |
| IHEval | Coming soon | 82.40% | Coming soon |
| AgentIF | Coming soon | 22.95% | Coming soon |
| InverseIFEval | Coming soon | 45.26% | Coming soon |
| StructEval-T | Coming soon | 79.99% | Coming soon |
| SysBench | Coming soon | 67.22% | Coming soon |

## FAQ

### Can I compare GPT-6.1 Terra and Nemotron 3.5 Bolt E4B 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)
- [Nemotron 3.5 Bolt E4B vs GPT-6 Astra](/compare/gpt-6-astra-vs-nemotron-3-5-bolt-e4b)
- [GPT-6.1 Terra vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-gpt-6-1-terra)
- [Nemotron 3.5 Bolt E4B vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-nemotron-3-5-bolt-e4b)

## Explore More

- [GPT-6.1 Terra profile](/models/gpt-6-1-terra)
- [Nemotron 3.5 Bolt E4B profile](/models/nemotron-3-5-bolt-e4b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)