# GPT-5.2-Codex vs MiMo-V2-Flash

> Side-by-side benchmark comparison for GPT-5.2-Codex and MiMo-V2-Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-2-codex-vs-mimo-v2-flash
- Last updated: October 17, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for GPT-5.2-Codex and MiMo-V2-Flash.

## Summary

- GPT-5.2-Codex and MiMo-V2-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-5.2-Codex | MiMo-V2-Flash |
|----------|----------|----------|
| Creator | OpenAI | Xiaomi |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 400K | 256K |
| Independent public score (not head-to-head) | 55.3 | 41 |
| Benchmarks Covered | 5 | 8 |
| Pricing (input/output) | $1.75 / $14.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 40.8 (Estimated · #64/128)
- MiMo-V2-Flash public-lane score: Coming soon

| Benchmark | GPT-5.2-Codex | MiMo-V2-Flash | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 51.79% | Coming soon | Coming soon |
| JobBench | 26.0% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 43.7 (Supported · #56/150)
- MiMo-V2-Flash public-lane score: 28.5 (Estimated · #98/150)

| Benchmark | GPT-5.2-Codex | MiMo-V2-Flash | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 37.91% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 88.0% | Coming soon | Coming soon |
| SWE-bench (Vals) | 72.4% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 73.4% | Coming soon |
| LiveCodeBench v6 | Coming soon | 80.6% | Coming soon |
| SWE Multilingual | Coming soon | 71.7% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 82.4 (Unranked · 2 rankable rows)
- MiMo-V2-Flash public-lane score: 58.1 (Unranked · 3 rankable rows)

| Benchmark | GPT-5.2-Codex | MiMo-V2-Flash | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 60.6% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 76.9 (Unranked · 1 rankable row)
- MiMo-V2-Flash public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 56.4 (Estimated · #54/184)
- MiMo-V2-Flash public-lane score: 34.9 (Supported · #135/184)

| Benchmark | GPT-5.2-Codex | MiMo-V2-Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA | Coming soon | 83.7% | Coming soon |
| MMLU-Pro | Coming soon | 84.9% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 59.3% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 93.8 (#4/148)
- MiMo-V2-Flash public-lane score: 46.3 (#102/148)

### Mathematics

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: Coming soon
- MiMo-V2-Flash public-lane score: Coming soon

| Benchmark | GPT-5.2-Codex | MiMo-V2-Flash | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | Coming soon | 94.1% | Coming soon |

## FAQ

### Can I compare GPT-5.2-Codex and MiMo-V2-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-5.2-Codex vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gpt-5-2-codex)
- [MiMo-V2-Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mimo-v2-flash)
- [GPT-5.2-Codex vs GPT-6.1 Sol](/compare/gpt-5-2-codex-vs-gpt-6-1-sol)
- [MiMo-V2-Flash vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-mimo-v2-flash)

## Explore More

- [GPT-5.2-Codex profile](/models/gpt-5-2-codex)
- [MiMo-V2-Flash profile](/models/mimo-v2-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)