# Clef-Flash vs d1-ultra

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

- Canonical page: https://benchlm.ai/compare/cloudflare-clef-flash-vs-d1-ultra
- 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 Clef-Flash and d1-ultra.

## Summary

- Clef-Flash and d1-ultra 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 | Clef-Flash | d1-ultra |
|----------|----------|----------|
| Creator | Cloudflare | Liquid AI |
| Type | Open Weight | Proprietary |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | 64K | null |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 0 | 0 |
| Pricing (input/output) | $0.09 / Pricing unavailable | $0.042 / $0.00 |

## Category Breakdown

## FAQ

### Can I compare Clef-Flash and d1-ultra 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

- [Clef-Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-cloudflare-clef-flash)
- [d1-ultra vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-d1-ultra)
- [Clef-Flash vs GPT-6.1 Sol](/compare/cloudflare-clef-flash-vs-gpt-6-1-sol)
- [d1-ultra vs GPT-6.1 Sol](/compare/d1-ultra-vs-gpt-6-1-sol)

## Explore More

- [Clef-Flash profile](/models/cloudflare-clef-flash)
- [d1-ultra profile](/models/d1-ultra)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)