# GPT-5.4 Pro vs Inkling 2 Small

> Side-by-side benchmark comparison for GPT-5.4 Pro and Inkling 2 Small across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-4-pro-vs-inkling-2-small
- Last updated: November 7, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: GPT-5.4 Pro and Inkling 2 Small share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Inkling 2 Small has the lower published output-token price.
- GPT-5.4 Pro has the larger published context window at 1.05M.

## Model Snapshot

| Property | GPT-5.4 Pro | Inkling 2 Small |
|----------|----------|----------|
| Creator | OpenAI | Thinking Machines Lab |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Hybrid |
| Context | 1.05M | 1M |
| Independent public score (not head-to-head) | 68.18 | 59.06 |
| Benchmarks Covered | 11 | 25 |
| Pricing (input/output) | $30.00 / $180.00 | $0.30 / $1.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-5.4 Pro public-lane score: Coming soon
- Inkling 2 Small public-lane score: 59.9 (Supported · #26/131)

| Benchmark | GPT-5.4 Pro | Inkling 2 Small | Winner |
|-----------|-----------|-----------|--------|
| BrowseComp | 89.3% | 90.2% | Inkling 2 Small |
| Terminal-Bench 2.1 | Coming soon | 85.1% | Coming soon |
| DeepSearchQA | Coming soon | 90.9% | Coming soon |
| MCP Atlas | Coming soon | 85% | Coming soon |
| JobBench | Coming soon | 70.5% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-5.4 Pro public-lane score: Coming soon
- Inkling 2 Small public-lane score: 59.7 (Supported · #20/157)

| Benchmark | GPT-5.4 Pro | Inkling 2 Small | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | Coming soon | 82.2% | Coming soon |
| SWE Multilingual | Coming soon | 81.2% | Coming soon |
| sweMarathon | Coming soon | 38.8% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 85.1% | Coming soon |
| DeepSWE | Coming soon | 72.1% | Coming soon |
| PostTrainBench v1.2 | Coming soon | 31.9% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-5.4 Pro public-lane score: 76.5 (Unranked · 3 rankable rows)
- Inkling 2 Small public-lane score: 86.1 (Unranked · 2 rankable rows)

| Benchmark | GPT-5.4 Pro | Inkling 2 Small | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 83.3% | Coming soon | Coming soon |
| ARC-AGI-1 | 94.50% | Coming soon | Coming soon |
| LongBench v2 | Coming soon | 70.6% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-5.4 Pro public-lane score: Coming soon
- Inkling 2 Small public-lane score: 86.6 (#12/59)

| Benchmark | GPT-5.4 Pro | Inkling 2 Small | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | Coming soon | 87.7% | Coming soon |
| CharXiv w/o tools | Coming soon | 85.6% | Coming soon |
| Chartography (no tools) | Coming soon | 36.7% | Coming soon |
| Chartography (tools) | Coming soon | 80.4% | Coming soon |
| BabyVision | Coming soon | 68.6% | Coming soon |
| BabyVision w/ Python | Coming soon | 93.7% | Coming soon |
| ScreenSpot Pro | Coming soon | 83.8% | Coming soon |
| PerceptionBench | Coming soon | 64.7% | Coming soon |
| MathVision | Coming soon | 92.8% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- GPT-5.4 Pro public-lane score: Coming soon
- Inkling 2 Small public-lane score: 60.4 (Estimated · #46/178)

| Benchmark | GPT-5.4 Pro | Inkling 2 Small | Winner |
|-----------|-----------|-----------|--------|
| HLE | 58.7% | Coming soon | Coming soon |
| FrontierScience | 36.7% | Coming soon | Coming soon |
| FrontierScience Research | 36.7% | Coming soon | Coming soon |
| HLE w/o tools | 42.7% | Coming soon | Coming soon |
| GPQA | Coming soon | 93% | Coming soon |
| GPQA-D | Coming soon | 93.0% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- GPT-5.4 Pro public-lane score: 83 (Unranked · 4 rankable rows)
- Inkling 2 Small public-lane score: 85.9 (Unranked · 2 rankable rows)

| Benchmark | GPT-5.4 Pro | Inkling 2 Small | Winner |
|-----------|-----------|-----------|--------|
| IPhO 2025 (Theory) | 93.5% | Coming soon | Coming soon |
| FrontierMath (legacy) | 50% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 82.456% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 58.537% | Coming soon | Coming soon |
| HMMT Feb 2026 | Coming soon | 95.8% | Coming soon |
| Apex | Coming soon | 63.5% | Coming soon |

## FAQ

### Is there enough evidence to pick between GPT-5.4 Pro and Inkling 2 Small?

Not yet. The models share only 1 sourced benchmark row, 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

- [GPT-5.4 Pro vs GPT-5.4](/compare/gpt-5-4-vs-gpt-5-4-pro)
- [Inkling 2 Small vs GPT-5.4](/compare/gpt-5-4-vs-inkling-2-small)
- [GPT-5.4 Pro vs GPT-5.4 mini](/compare/gpt-5-4-mini-vs-gpt-5-4-pro)
- [Inkling 2 Small vs GPT-5.4 mini](/compare/gpt-5-4-mini-vs-inkling-2-small)

## Explore More

- [GPT-5.4 Pro profile](/models/gpt-5-4-pro)
- [Inkling 2 Small profile](/models/inkling-2-small)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)