# GPT-4.1 vs Seed 1.6 Flash

> Side-by-side benchmark comparison for GPT-4.1 and Seed 1.6 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-4-1-vs-seed-1-6-flash
- Last updated: September 10, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for GPT-4.1 and Seed 1.6 Flash.

## Summary

- GPT-4.1 and Seed 1.6 Flash 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 | GPT-4.1 | Seed 1.6 Flash |
|----------|----------|----------|
| Creator | OpenAI | ByteDance |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 1M | 256K |
| Independent public score (not head-to-head) | 42.05 | 43.56 |
| Benchmarks Covered | 7 | 0 |
| Pricing (input/output) | $2.00 / $8.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: Coming soon
- Seed 1.6 Flash public-lane score: Coming soon

| Benchmark | GPT-4.1 | Seed 1.6 Flash | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 25.65% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: 41.9 (Estimated · #106/151)
- Seed 1.6 Flash public-lane score: Coming soon

| Benchmark | GPT-4.1 | Seed 1.6 Flash | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 54.6% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: 50.2 (Unranked · 1 rankable row)
- Seed 1.6 Flash public-lane score: Coming soon

### Reasoning

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: 67.9 (Unranked · 2 rankable rows)
- Seed 1.6 Flash public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: 39.9 (Supported · #134/182)
- Seed 1.6 Flash public-lane score: Coming soon

| Benchmark | GPT-4.1 | Seed 1.6 Flash | Winner |
|-----------|-----------|-----------|--------|
| MMLU | 90.2% | Coming soon | Coming soon |
| GPQA | 66.3% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: 50.5 (#81/121)
- Seed 1.6 Flash public-lane score: Coming soon

| Benchmark | GPT-4.1 | Seed 1.6 Flash | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 87.4% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- GPT-4.1 public-lane score: 28.1 (Unranked · 2 rankable rows)
- Seed 1.6 Flash public-lane score: Coming soon

| Benchmark | GPT-4.1 | Seed 1.6 Flash | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 5.517% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 0.000% | Coming soon | Coming soon |

## FAQ

### Can I compare GPT-4.1 and Seed 1.6 Flash 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

- [GPT-4.1 vs GPT-4.1 mini](/compare/gpt-4-1-vs-gpt-4-1-mini)
- [Seed 1.6 Flash vs GPT-4.1 mini](/compare/gpt-4-1-mini-vs-seed-1-6-flash)
- [GPT-4.1 vs GPT-4.1 nano](/compare/gpt-4-1-vs-gpt-4-1-nano)
- [Seed 1.6 Flash vs GPT-4.1 nano](/compare/gpt-4-1-nano-vs-seed-1-6-flash)

## Explore More

- [GPT-4.1 profile](/models/gpt-4-1)
- [Seed 1.6 Flash profile](/models/seed-1-6-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)