# GPT-5.5 vs Kimi K2.7 Code

> Side-by-side benchmark comparison for GPT-5.5 and Kimi K2.7 Code across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-5-vs-kimi-k2-7-code
- 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: GPT-5.5 and Kimi K2.7 Code 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.
- Kimi K2.7 Code has the lower published output-token price.
- GPT-5.5 has the larger published context window at 1M.

## Model Snapshot

| Property | GPT-5.5 | Kimi K2.7 Code |
|----------|----------|----------|
| Creator | OpenAI | Moonshot AI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 256K |
| Independent public score (not head-to-head) | 72.07 | 65.49 |
| Benchmarks Covered | 38 | 8 |
| Pricing (input/output) | $5.00 / $30.00 | $0.95 / $4.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-5.5 public-lane score: 61 (Supported · #17/152)
- Kimi K2.7 Code public-lane score: 46.8 (Estimated · #72/152)

| Benchmark | GPT-5.5 | Kimi K2.7 Code | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 82% | Coming soon | Coming soon |
| CyberGym | 81.8% | Coming soon | Coming soon |
| BrowseComp | 84.4% | Coming soon | Coming soon |
| OSWorld-Verified | 78.7% | Coming soon | Coming soon |
| MCP Atlas | 75.3% | 76% | Kimi K2.7 Code |
| Toolathlon | 55.6% | Coming soon | Coming soon |
| τ²-bench results | 98% | Coming soon | Coming soon |
| Gert Labs | 72.93% | Coming soon | Coming soon |
| ResearchClawBench | 17.0% | Coming soon | Coming soon |
| OSWorld 2.0 | 13.0% | Coming soon | Coming soon |
| JobBench | 42.7% | Coming soon | Coming soon |
| ExploitGym | 13.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 76.4% | Coming soon | Coming soon |
| Kimi Claw 24/7 | Coming soon | 46.9% | Coming soon |
| MCP Mark Verified | Coming soon | 81.1% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-5.5 public-lane score: 67.6 (Supported · #7/151)
- Kimi K2.7 Code public-lane score: 50.9 (Supported · #51/151)

| Benchmark | GPT-5.5 | Kimi K2.7 Code | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 58.6% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 82.0% | Coming soon | Coming soon |
| Vibe Code Bench | 69.85% | Coming soon | Coming soon |
| React Native Evals | 84.7% | Coming soon | Coming soon |
| cursorBench31 | 59.2% | Coming soon | Coming soon |
| cursorBench32 | 58.4% | 49.7% | GPT-5.5 |
| FrontierCode 1.1 Main | 43.0% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 85.3% | Coming soon | Coming soon |
| SWE-bench (Vals) | 82.6% | Coming soon | Coming soon |
| Kimi Code Bench v2 | Coming soon | 62.0% | Coming soon |
| ProgramBench | Coming soon | 53.6% | Coming soon |
| MLS-Bench Lite | Coming soon | 35.1% | Coming soon |
| OpenHarmony Bench | Coming soon | 52.1% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-5.5 public-lane score: 71.3 (#19/48)
- Kimi K2.7 Code public-lane score: Coming soon

| Benchmark | GPT-5.5 | Kimi K2.7 Code | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 81.2% | Coming soon | Coming soon |
| MMMU-Pro w/ Python | 83.2% | Coming soon | Coming soon |
| OfficeQA Pro | 54.1% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-5.5 public-lane score: 64 (#13/20)
- Kimi K2.7 Code public-lane score: 75.5 (Unranked · 2 rankable rows)

| Benchmark | GPT-5.5 | Kimi K2.7 Code | Winner |
|-----------|-----------|-----------|--------|
| MRCR v2 64K-128K | 83.1% | Coming soon | Coming soon |
| MRCR v2 128K-256K | 87.5% | Coming soon | Coming soon |
| ARC-AGI-2 | 85% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.4% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- GPT-5.5 public-lane score: 72.9 (Supported · #7/183)
- Kimi K2.7 Code public-lane score: 61.6 (Estimated · #31/183)

| Benchmark | GPT-5.5 | Kimi K2.7 Code | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 93.6% | Coming soon | Coming soon |
| GPQA-D | 93.6% | Coming soon | Coming soon |
| HLE | 52.2% | Coming soon | Coming soon |
| HLE w/o tools | 41.4% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 93.2% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 88.1% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-5.5 public-lane score: 93.2 (#7/123)
- Kimi K2.7 Code public-lane score: 76.6 (#58/123)

### Mathematics

- Winner: Insufficient shared evidence
- GPT-5.5 public-lane score: 69.6 (Unranked · 3 rankable rows)
- Kimi K2.7 Code public-lane score: Coming soon

| Benchmark | GPT-5.5 | Kimi K2.7 Code | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath (legacy) | 51.7% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 51.700% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 35.400% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between GPT-5.5 and Kimi K2.7 Code?

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

- [GPT-5.5 vs GPT-5.5 Pro](/compare/gpt-5-5-vs-gpt-5-5-pro)
- [Kimi K2.7 Code vs GPT-5.5 Pro](/compare/gpt-5-5-pro-vs-kimi-k2-7-code)
- [GPT-5.5 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-gpt-5-5)
- [Kimi K2.7 Code vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-kimi-k2-7-code)

## Explore More

- [GPT-5.5 profile](/models/gpt-5-5)
- [Kimi K2.7 Code profile](/models/kimi-k2-7-code)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)