# Quasar 438B vs Ultramarine 1 Flash

> Side-by-side benchmark comparison for Quasar 438B and Ultramarine 1 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/quasar-438b-vs-ultramarine-1-flash
- Last updated: October 15, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Quasar 438B and Ultramarine 1 Flash share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Ultramarine 1 Flash has the lower published output-token price.
- Quasar 438B has the larger published context window at 1M.

## Model Snapshot

| Property | Quasar 438B | Ultramarine 1 Flash |
|----------|----------|----------|
| Creator | Multiverse Computing | Paper Instruments |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | Not disclosed |
| Independent public score (not head-to-head) | 48.42 | null |
| Benchmarks Covered | 2 | 5 |
| Pricing (input/output) | $0.60 / $1.80 | $0.15 / $0.50 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Quasar 438B public-lane score: 40 (Estimated · #66/126)
- Ultramarine 1 Flash public-lane score: Coming soon

| Benchmark | Quasar 438B | Ultramarine 1 Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 69.3% | 83.2% | Ultramarine 1 Flash |
| JobBench | Coming soon | 62.9% | Coming soon |
| AutomationBench | Coming soon | 50.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Quasar 438B public-lane score: 41.2 (Estimated · #62/149)
- Ultramarine 1 Flash public-lane score: Coming soon

| Benchmark | Quasar 438B | Ultramarine 1 Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 69.3% | 83.2% | Ultramarine 1 Flash |
| DeepSWE | Coming soon | 61.5% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Quasar 438B public-lane score: 78.3 (Unranked · 2 rankable rows)
- Ultramarine 1 Flash public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- Quasar 438B public-lane score: 46.6 (Estimated · #91/182)
- Ultramarine 1 Flash public-lane score: Coming soon

## FAQ

### Is there enough evidence to pick between Quasar 438B and Ultramarine 1 Flash?

Not yet. The models share only 2 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Quasar 438B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-quasar-438b)
- [Ultramarine 1 Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-ultramarine-1-flash)
- [Quasar 438B vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-quasar-438b)
- [Ultramarine 1 Flash vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-ultramarine-1-flash)

## Explore More

- [Quasar 438B profile](/models/quasar-438b)
- [Ultramarine 1 Flash profile](/models/ultramarine-1-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)