# Seed 2.1 Turbo vs Solar Pro 4

> Side-by-side benchmark comparison for Seed 2.1 Turbo and Solar Pro 4 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/seed-2-1-turbo-vs-solar-pro-4
- Last updated: September 10, 2026

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

## Quick Verdict

Evidence is too thin for a benchmark verdict: Seed 2.1 Turbo and Solar Pro 4 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.
- Seed 2.1 Turbo has the lower published output-token price.
- Solar Pro 4 has the larger published context window at 512K.

## Model Snapshot

| Property | Seed 2.1 Turbo | Solar Pro 4 |
|----------|----------|----------|
| Creator | ByteDance | Upstage |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 512K |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 11 | 10 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $0.30 / $1.20 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Seed 2.1 Turbo public-lane score: Coming soon
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | Seed 2.1 Turbo | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 67.6% | 57.0% | Seed 2.1 Turbo |
| BrowseComp | Coming soon | 49.2% | Coming soon |
| MCP Atlas | Coming soon | 61.4% | Coming soon |
| APEX-Agents | Coming soon | 18.7% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Seed 2.1 Turbo public-lane score: Coming soon
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | Seed 2.1 Turbo | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 67.6% | 57.0% | Seed 2.1 Turbo |
| NL2Repo | 43.7% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 70.6% | Coming soon |
| LiveCodeBench | Coming soon | 87.8% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Seed 2.1 Turbo public-lane score: Coming soon
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | Seed 2.1 Turbo | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| MathVision | 90.1% | Coming soon | Coming soon |
| MMMU-Pro | 80.1% | Coming soon | Coming soon |
| ZeroBench | 11.0% | Coming soon | Coming soon |
| BabyVision | 62.9% | Coming soon | Coming soon |
| CharXiv | 82.5% | Coming soon | Coming soon |
| ERQA | 71.3% | Coming soon | Coming soon |
| Video-MME | 89.0% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Seed 2.1 Turbo public-lane score: Coming soon
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | Seed 2.1 Turbo | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| SuperGPQA | 67.4% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 89.0% | Coming soon |
| MMLU-Pro | Coming soon | 86.3% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Seed 2.1 Turbo public-lane score: Coming soon
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | Seed 2.1 Turbo | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | Coming soon | 95.3% | Coming soon |

## FAQ

### Is there enough evidence to pick between Seed 2.1 Turbo and Solar Pro 4?

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

- [Seed 2.1 Turbo vs Seed 2.1 Pro](/compare/seed-2-1-pro-vs-seed-2-1-turbo)
- [Solar Pro 4 vs Seed 2.1 Pro](/compare/seed-2-1-pro-vs-solar-pro-4)
- [Seed 2.1 Turbo vs Solar Pro 2](/compare/seed-2-1-turbo-vs-solar-pro-2)
- [Solar Pro 4 vs Solar Pro 2](/compare/solar-pro-2-vs-solar-pro-4)

## Explore More

- [Seed 2.1 Turbo profile](/models/seed-2-1-turbo)
- [Solar Pro 4 profile](/models/solar-pro-4)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)