# d1-ultra vs GPT-4.1 nano

> Side-by-side benchmark comparison for d1-ultra and GPT-4.1 nano across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/d1-ultra-vs-gpt-4-1-nano
- Last updated: October 15, 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 d1-ultra and GPT-4.1 nano.

## Summary

- d1-ultra and GPT-4.1 nano 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 | d1-ultra | GPT-4.1 nano |
|----------|----------|----------|
| Creator | Liquid AI | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | null | 1M |
| Independent public score (not head-to-head) | null | 24.55 |
| Benchmarks Covered | 0 | 3 |
| Pricing (input/output) | $0.042 / $0.00 | $0.10 / $0.40 |

## Category Breakdown

### Coding

- Winner: Insufficient shared evidence
- d1-ultra public-lane score: Coming soon
- GPT-4.1 nano public-lane score: 10.3 (Estimated · #144/150)

### Reasoning

- Winner: Insufficient shared evidence
- d1-ultra public-lane score: Coming soon
- GPT-4.1 nano public-lane score: 39.8 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- d1-ultra public-lane score: Coming soon
- GPT-4.1 nano public-lane score: 29.8 (Unranked · 1 rankable row)

### Knowledge

- Winner: Insufficient shared evidence
- d1-ultra public-lane score: Coming soon
- GPT-4.1 nano public-lane score: 25.6 (Supported · #171/184)

| Benchmark | d1-ultra | GPT-4.1 nano | Winner |
|-----------|-----------|-----------|--------|
| MMLU | Coming soon | 80.1% | Coming soon |
| GPQA | Coming soon | 50.3% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- d1-ultra public-lane score: Coming soon
- GPT-4.1 nano public-lane score: 36 (#122/146)

| Benchmark | d1-ultra | GPT-4.1 nano | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 83.2% | Coming soon |

## FAQ

### Can I compare d1-ultra and GPT-4.1 nano 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

- [d1-ultra vs GPT-4.1](/compare/d1-ultra-vs-gpt-4-1)
- [GPT-4.1 nano vs GPT-4.1](/compare/gpt-4-1-vs-gpt-4-1-nano)
- [d1-ultra vs GPT-4.1 mini](/compare/d1-ultra-vs-gpt-4-1-mini)
- [GPT-4.1 nano vs GPT-4.1 mini](/compare/gpt-4-1-mini-vs-gpt-4-1-nano)

## Explore More

- [d1-ultra profile](/models/d1-ultra)
- [GPT-4.1 nano profile](/models/gpt-4-1-nano)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)