Model comparison
Ling 2.6 Flash vs o1-pro
Head-to-head evidence from 2 shared benchmark results across 1 category. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Ling 2.6 Flash #154 (Estimated); o1-pro #141 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Ling 2.6 Flash and o1-pro share 2 comparable benchmark results. 1 of 8 categories are comparable. 16 results are unique to Ling 2.6 Flash; 0 to o1-pro.
Updated July 21, 2026- Shared results
- 2
- Ling 2.6 Flash only
- 16
- o1-pro only
- 0
- Comparable categories
- 1 / 8
Pick o1-pro if you want the stronger benchmark profile. Ling 2.6 Flash only becomes the better choice if you need the larger 262K context window or you would rather avoid the extra latency and token burn of a reasoning model.
Confidence note. This is a partial-evidence comparison with 2 shared benchmark results across 1 evidence category; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
o1-pro has the cleaner BenchAlign overall profile here, landing at 45.94 versus 43.87. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
o1-pro's sharpest advantage is in knowledge, where it averages 79 against 59. The single biggest benchmark swing on the page is GPQA, 59% to 79%.
o1-pro is the reasoning model in the pair, while Ling 2.6 Flash is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Ling 2.6 Flash gives you the larger context window at 262K, compared with 200K for o1-pro.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
| Category | Ling 2.6 Flash | Δ | o1-pro |
|---|---|---|---|
| Knowledge | Ling 2.6 Flash59.0 | Margin→ 20.0 | o1-pro79.0 |
| Coding | Ling 2.6 Flash27.0 | MarginNo overlap | o1-proNot measured |
| Inst. Following | Ling 2.6 Flash57.0 | MarginNo overlap | o1-proNot measured |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
GPQA
KnowledgeA 59%B 79%Winner: o1-proΔ 20GPQA: Ling 2.6 Flash scored 59%; o1-pro scored 79%. o1-pro wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Ling 2.6 Flash | o1-pro | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Ling 2.6 FlashNot available | o1-pro$150 input / $600 output | A complete price comparison is not available. |
| Generation speedtokens per second | Ling 2.6 Flash209.5 tok/s | o1-proNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Ling 2.6 Flash1.07 s | o1-proNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Ling 2.6 Flash262K | o1-pro200K | Ling 2.6 Flash lists the larger context window. |
Benchmark Deep Dive
Agentic4 benchmarks
Coding3 benchmarks
Reasoning2 benchmarks
Knowledgeo1-pro wins7 benchmarks
| Benchmark | Ling 2.6 Flash | o1-pro | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 14.1% | 18.9% | o1-pro leads |
| GPQASource | 59% | 79% | o1-pro leads |
| AA-GPQA DiamondSource | 59.3% | — | Not comparable |
| AA-HLESource | 6.2% | — | Not comparable |
| AA-Omniscience IndexSource | -65.7% | — | Not comparable |
| AA-Omniscience AccuracySource | 15.4% | — | Not comparable |
| AA-Omniscience Hallucination RateSource | 95.8% | — | Not comparable |
Frequently Asked Questions (2)
Which is better, Ling 2.6 Flash or o1-pro?
o1-pro is ahead on BenchLM's BenchAlign leaderboard, 45.94 to 43.87. The biggest single separator in this matchup is GPQA, where the scores are 59% and 79%.
Which is better for knowledge tasks, Ling 2.6 Flash or o1-pro?
o1-pro has the edge for knowledge tasks in this comparison, averaging 79 versus 59. Inside this category, GPQA is the benchmark that creates the most daylight between them.
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