# GPT-5.3 Codex vs Ling 3.0 Flash

> Side-by-side benchmark comparison for GPT-5.3 Codex and Ling 3.0 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-3-codex-vs-ling-3-0-flash
- Last updated: September 4, 2026

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

## Quick Verdict

Evidence is too thin for a benchmark verdict: GPT-5.3 Codex and Ling 3.0 Flash 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.
- Ling 3.0 Flash has the lower published output-token price.
- GPT-5.3 Codex has the larger published context window at 400K.

## Model Snapshot

| Property | GPT-5.3 Codex | Ling 3.0 Flash |
|----------|----------|----------|
| Creator | OpenAI | InclusionAI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 400K | 262K |
| Independent public score (not head-to-head) | 65.22 | 52.2 |
| Benchmarks Covered | 8 | 22 |
| Pricing (input/output) | $1.75 / $14.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-5.3 Codex public-lane score: 62.3 (Estimated · #19/151)
- Ling 3.0 Flash public-lane score: 40 (Supported · #121/151)

| Benchmark | GPT-5.3 Codex | Ling 3.0 Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 77.3% | Coming soon | Coming soon |
| OSWorld-Verified | 64.7% | Coming soon | Coming soon |
| Gert Labs | 57.47% | Coming soon | Coming soon |
| JobBench | 33.7% | Coming soon | Coming soon |
| MCP Atlas | Coming soon | 65.5% | Coming soon |
| skillsBench | Coming soon | 44.8% | Coming soon |
| BFCL v4 | Coming soon | 73.0% | Coming soon |
| WideResearch | Coming soon | 73.6% | Coming soon |
| BrowseComp | Coming soon | 72.2% | Coming soon |
| DRACO | Coming soon | 70.4% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 50.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-5.3 Codex public-lane score: 62.7 (Supported · #16/183)
- Ling 3.0 Flash public-lane score: 42.8 (Estimated · #126/183)

| Benchmark | GPT-5.3 Codex | Ling 3.0 Flash | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 85% | Coming soon | Coming soon |
| SWE-bench Pro | 56.8% | 56.6% | GPT-5.3 Codex |
| SWE-Rebench | 58.2% | Coming soon | Coming soon |
| Vibe Code Bench | 61.77% | Coming soon | Coming soon |
| SWE Multilingual | Coming soon | 72.4% | Coming soon |
| LiveCodeBench v5 | Coming soon | 82.8% | Coming soon |
| SciCode | Coming soon | 41.2% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 84.0% | Coming soon |
| SWE-bench (Vals) | Coming soon | 65.2% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-5.3 Codex public-lane score: 75.6 (Unranked · 1 rankable row)
- Ling 3.0 Flash public-lane score: Coming soon

### Reasoning

- Winner: Insufficient shared evidence
- GPT-5.3 Codex public-lane score: 77.3 (Unranked · 2 rankable rows)
- Ling 3.0 Flash public-lane score: 69.2 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Insufficient shared evidence
- GPT-5.3 Codex public-lane score: 66.3 (Estimated · #22/181)
- Ling 3.0 Flash public-lane score: 45.9 (Supported · #112/181)

| Benchmark | GPT-5.3 Codex | Ling 3.0 Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA | Coming soon | 85.0% | Coming soon |
| GPQA-D | Coming soon | 85.0% | Coming soon |
| HLE | Coming soon | 22.7% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 84.8% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 82.0% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-5.3 Codex public-lane score: 92.3 (#15/120)
- Ling 3.0 Flash public-lane score: 75.6 (#58/120)

| Benchmark | GPT-5.3 Codex | Ling 3.0 Flash | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 74.5% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- GPT-5.3 Codex public-lane score: Coming soon
- Ling 3.0 Flash public-lane score: 73.7 (Unranked · 3 rankable rows)

| Benchmark | GPT-5.3 Codex | Ling 3.0 Flash | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | Coming soon | 93.2% | Coming soon |
| HMMT Feb 2026 | Coming soon | 87.0% | Coming soon |
| IMOAnswerBench | Coming soon | 83.7% | Coming soon |

## FAQ

### Is there enough evidence to pick between GPT-5.3 Codex and Ling 3.0 Flash?

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-5.3 Codex vs GPT-5.3-Codex-Spark](/compare/gpt-5-3-codex-vs-gpt-5-3-codex-spark)
- [Ling 3.0 Flash vs GPT-5.3-Codex-Spark](/compare/gpt-5-3-codex-spark-vs-ling-3-0-flash)
- [GPT-5.3 Codex vs Ling 3.0 Flash FP8](/compare/gpt-5-3-codex-vs-ling-3-0-flash-fp8)
- [Ling 3.0 Flash vs Ling 3.0 Flash FP8](/compare/ling-3-0-flash-vs-ling-3-0-flash-fp8)

## Explore More

- [GPT-5.3 Codex profile](/models/gpt-5-3-codex)
- [Ling 3.0 Flash profile](/models/ling-3-0-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)