# GPT-5.2-Codex vs Solar Pro 2

> Side-by-side benchmark comparison for GPT-5.2-Codex and Solar Pro 2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-2-codex-vs-solar-pro-2
- Last updated: September 21, 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-5.2-Codex and Solar Pro 2.

## Summary

- GPT-5.2-Codex and Solar Pro 2 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 | Solar Pro 2 |
|----------|----------|----------|
| Creator | OpenAI | Upstage |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 400K | 128K |
| Independent public score (not head-to-head) | 52.77 | 39.3 |
| Benchmarks Covered | 5 | 0 |
| Pricing (input/output) | $1.75 / $14.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 49.7 (Estimated · #61/154)
- Solar Pro 2 public-lane score: Coming soon

| Benchmark | GPT-5.2-Codex | Solar Pro 2 | 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: 52.3 (Supported · #51/156)
- Solar Pro 2 public-lane score: Coming soon

| Benchmark | GPT-5.2-Codex | Solar Pro 2 | 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 |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 77.6 (Unranked · 2 rankable rows)
- Solar Pro 2 public-lane score: 21 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 72.5 (Unranked · 1 rankable row)
- Solar Pro 2 public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 55.7 (Estimated · #51/186)
- Solar Pro 2 public-lane score: 39.5 (Estimated · #141/186)

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-5.2-Codex public-lane score: 92.4 (#3/124)
- Solar Pro 2 public-lane score: 36.8 (Unranked · 1 rankable row)

## FAQ

### Can I compare GPT-5.2-Codex and Solar Pro 2 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 Solar Pro 3](/compare/gpt-5-2-codex-vs-solar-pro-3)
- [Solar Pro 2 vs Solar Pro 3](/compare/solar-pro-2-vs-solar-pro-3)
- [GPT-5.2-Codex vs Solar Pro 4](/compare/gpt-5-2-codex-vs-solar-pro-4)
- [Solar Pro 2 vs Solar Pro 4](/compare/solar-pro-2-vs-solar-pro-4)

## Explore More

- [GPT-5.2-Codex profile](/models/gpt-5-2-codex)
- [Solar Pro 2 profile](/models/solar-pro-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)