# Solar Pro 4 vs ZAYA1-8B

> Side-by-side benchmark comparison for Solar Pro 4 and ZAYA1-8B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/solar-pro-4-vs-zaya1-8b
- Last updated: September 10, 2026

- Shared sourced benchmarks: 3
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: Solar Pro 4 and ZAYA1-8B share only 3 sourced benchmark rows.

## Summary

- Only 3 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- ZAYA1-8B has the lower published output-token price.
- Solar Pro 4 has the larger published context window at 512K.

## Model Snapshot

| Property | Solar Pro 4 | ZAYA1-8B |
|----------|----------|----------|
| Creator | Upstage | Zyphra |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 512K | 131K |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 10 | 11 |
| Pricing (input/output) | $0.30 / $1.20 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Solar Pro 4 public-lane score: Coming soon
- ZAYA1-8B public-lane score: 45.7 (Estimated · #80/152)

| Benchmark | Solar Pro 4 | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 57.0% | Coming soon | Coming soon |
| BrowseComp | 49.2% | Coming soon | Coming soon |
| MCP Atlas | 61.4% | Coming soon | Coming soon |
| APEX-Agents | 18.7% | Coming soon | Coming soon |
| BFCL v4 | Coming soon | 39.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Solar Pro 4 public-lane score: Coming soon
- ZAYA1-8B public-lane score: Coming soon

| Benchmark | Solar Pro 4 | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 57.0% | Coming soon | Coming soon |
| SWE-bench Verified | 70.6% | Coming soon | Coming soon |
| LiveCodeBench | 87.8% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 65.8% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Solar Pro 4 public-lane score: Coming soon
- ZAYA1-8B public-lane score: 43.3 (Estimated · #118/183)

| Benchmark | Solar Pro 4 | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 89.0% | 71.0% | Solar Pro 4 |
| MMLU-Pro | 86.3% | 74.2% | Solar Pro 4 |
| GPQA | Coming soon | 71% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Solar Pro 4 public-lane score: Coming soon
- ZAYA1-8B public-lane score: 35.6 (#110/123)

| Benchmark | Solar Pro 4 | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 85.6% | Coming soon |
| IFBench | Coming soon | 52.6% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Solar Pro 4 public-lane score: Coming soon
- ZAYA1-8B public-lane score: 62.6 (Unranked · 4 rankable rows)

| Benchmark | Solar Pro 4 | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 95.3% | 89.1% | Solar Pro 4 |
| HMMT Feb 2026 | Coming soon | 71.6% | Coming soon |
| IMOAnswerBench | Coming soon | 59.3% | Coming soon |
| Apex | Coming soon | 32.2% | Coming soon |

## FAQ

### Is there enough evidence to pick between Solar Pro 4 and ZAYA1-8B?

Not yet. The models share only 3 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

- [Solar Pro 4 vs Solar Pro 2](/compare/solar-pro-2-vs-solar-pro-4)
- [ZAYA1-8B vs Solar Pro 2](/compare/solar-pro-2-vs-zaya1-8b)
- [Solar Pro 4 vs Solar Pro 3](/compare/solar-pro-3-vs-solar-pro-4)
- [ZAYA1-8B vs Solar Pro 3](/compare/solar-pro-3-vs-zaya1-8b)

## Explore More

- [Solar Pro 4 profile](/models/solar-pro-4)
- [ZAYA1-8B profile](/models/zaya1-8b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)