# GPT-5.2 vs Inkling

> Side-by-side benchmark comparison for GPT-5.2 and Inkling across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-2-vs-inkling
- Last updated: October 14, 2026

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

## Quick Verdict

Pick GPT-5.2 if you want the stronger benchmark profile. Inkling only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GPT-5.2 leads overall 59.3 to 52.13.
- The clearest category separation is in reasoning, where the averages are 64.3 for GPT-5.2 and 79 for Inkling.
- The biggest single benchmark swing is FrontierMath v2 (Tiers 1-3) in Mathematics, with scores of 67.400% and 33.333%.
- Inkling is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Inkling also has the larger context window at 1M.

## Model Snapshot

| Property | GPT-5.2 | Inkling |
|----------|----------|----------|
| Creator | OpenAI | Thinking Machines Lab |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Hybrid |
| Context | 400K | 1M |
| Overall Score | 59.3 | 52.13 |
| Benchmarks Covered | 31 | 24 |
| Pricing (input/output) | $1.75 / $14.00 | $1.87 / $4.68 |

## Category Breakdown

### Agentic

- Winner: GPT-5.2
- GPT-5.2 public-lane score: 44 (Supported · #56/124)
- Inkling public-lane score: 36.2 (Supported · #72/124)

| Benchmark | GPT-5.2 | Inkling | Winner |
|-----------|-----------|-----------|--------|
| BrowseComp | 65.8% | 77.1% | Inkling |
| OSWorld-Verified | 47.3% | Coming soon | Coming soon |
| Gert Labs | 46.54% | Coming soon | Coming soon |
| JobBench | 34.3% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 63.8% | Coming soon |
| MCP Atlas | Coming soon | 74.1% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 47.6% | Coming soon |
| CWE-bench v1 | Coming soon | 37.0% | Coming soon |

### Coding

- Winner: GPT-5.2
- GPT-5.2 public-lane score: 37.4 (Supported · #71/149)
- Inkling public-lane score: 34 (Supported · #80/149)

| Benchmark | GPT-5.2 | Inkling | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80% | 77.6% | GPT-5.2 |
| SWE-bench Pro | 55.6% | 54.3% | GPT-5.2 |
| Vibe Code Bench | 53.50% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 63.8% | Coming soon |
| FrontierSWE v2 | Coming soon | 4.1% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 85.5% | Coming soon |
| SWE-bench (Vals) | Coming soon | 77.6% | Coming soon |

### Reasoning

- Winner: Not comparable
- GPT-5.2 public-lane score: 64.3 (Unranked · 4 rankable rows)
- Inkling public-lane score: 79 (#14/29)

| Benchmark | GPT-5.2 | Inkling | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 52.9% | Coming soon | Coming soon |
| ARC-AGI-1 | 86.17% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: GPT-5.2
- GPT-5.2 public-lane score: 75.9 (#22/54)
- Inkling public-lane score: 67.5 (#35/54)

| Benchmark | GPT-5.2 | Inkling | Winner |
|-----------|-----------|-----------|--------|
| MMMU | 86.7% | Coming soon | Coming soon |
| MMMU-Pro | 79.5% | 73.5% | GPT-5.2 |
| RealWorldQA | 83.3% | Coming soon | Coming soon |
| OmniDocBench 1.5 | 85.7% | Coming soon | Coming soon |
| Video-MME (with subtitle) | 86.0% | Coming soon | Coming soon |
| Video-MME (w/o subtitle) | 85.8% | Coming soon | Coming soon |
| MathVision | 83.0% | Coming soon | Coming soon |
| We-Math | 79.0% | Coming soon | Coming soon |
| DynaMath | 86.8% | Coming soon | Coming soon |
| SimpleVQA | 55.8% | Coming soon | Coming soon |
| CC-OCR | 70.3% | Coming soon | Coming soon |
| AI2D_TEST | 92.2% | Coming soon | Coming soon |
| CountBench | 91.9% | Coming soon | Coming soon |
| ERQA | 59.8% | Coming soon | Coming soon |
| VideoMMMU | 85.9% | Coming soon | Coming soon |
| MLVU (M-Avg) | 85.6% | Coming soon | Coming soon |
| CharXiv | 82.1% | 82% | GPT-5.2 |
| V* | 75.9% | Coming soon | Coming soon |
| CharXiv w/o tools | Coming soon | 78.1% | Coming soon |

### Knowledge

- Winner: GPT-5.2
- GPT-5.2 public-lane score: 60.2 (Supported · #47/181)
- Inkling public-lane score: 54.5 (Supported · #62/181)

| Benchmark | GPT-5.2 | Inkling | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.4% | 87.9% | GPT-5.2 |
| GPQA-D | Coming soon | 87.9% | Coming soon |
| HLE | Coming soon | 46% | Coming soon |
| HLE w/o tools | Coming soon | 30% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 87.1% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 86.3% | Coming soon |

### Instruction Following

- Winner: Directional only
- GPT-5.2 public-lane score: 92.6 (#19/128)
- Inkling public-lane score: 87.6 (#35/128)

| Benchmark | GPT-5.2 | Inkling | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 79.8% | Coming soon |

### Mathematics

- Winner: Not comparable
- GPT-5.2 public-lane score: 71.1 (Unranked · 3 rankable rows)
- Inkling public-lane score: 58.3 (#11/12)

| Benchmark | GPT-5.2 | Inkling | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 100% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 67.400% | 33.333% | GPT-5.2 |
| FrontierMath v2 (Tier 4) | 31.700% | 4.878% | GPT-5.2 |
| AIME26 | Coming soon | 97.1% | Coming soon |

## FAQ

### Which is better overall, GPT-5.2 or Inkling?

GPT-5.2 is ahead overall on BenchLM right now.

### Where is the biggest gap between GPT-5.2 and Inkling?

The widest category gap is in reasoning, where the averages are 64.3 for GPT-5.2 and 79 for Inkling.

### How many benchmarks does GPT-5.2 cover on BenchLM?

GPT-5.2 currently has 31 sourced benchmark scores on BenchLM.

### How many benchmarks does Inkling cover on BenchLM?

Inkling currently has 24 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GPT-5.2 vs GPT-5.2 Pro](/compare/gpt-5-2-vs-gpt-5-2-pro)
- [Inkling vs GPT-5.2 Pro](/compare/gpt-5-2-pro-vs-inkling)
- [GPT-5.2 vs GPT-5.2 Instant](/compare/gpt-5-2-vs-gpt-5-2-instant)
- [Inkling vs GPT-5.2 Instant](/compare/gpt-5-2-instant-vs-inkling)

## Explore More

- [GPT-5.2 profile](/models/gpt-5-2)
- [Inkling profile](/models/inkling)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)