Model comparison
o3-pro vs Qwen3.5 Flash
Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: o3-pro #127 (Supported); Qwen3.5 Flash #134 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. o3-pro and Qwen3.5 Flash share 0 comparable benchmark results. 0 of 8 categories are comparable. 2 results are unique to o3-pro; 2 to Qwen3.5 Flash.
Updated July 18, 2026- Shared results
- 0
- o3-pro only
- 2
- Qwen3.5 Flash only
- 2
- Comparable categories
- 0 / 8
Benchmark data for o3-pro and Qwen3.5 Flash is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
o3-pro is priced at $20.00 input / $80.00 output per 1M tokens, versus $0.10 input / $0.40 output per 1M tokens for Qwen3.5 Flash. Qwen3.5 Flash has the larger context window at 1M, compared with 200K for o3-pro.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | o3-pro | Qwen3.5 Flash | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | o3-pro$20 input / $80 output | Qwen3.5 Flash$0.1 input / $0.4 output | Qwen3.5 Flash has the lower combined listed price. |
| Generation speedtokens per second | o3-pro27 tok/s | Qwen3.5 FlashNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | o3-pro84.93 s | Qwen3.5 FlashNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | o3-pro200K | Qwen3.5 Flash1M | Qwen3.5 Flash lists the larger context window. |
Benchmark Deep Dive
Knowledge2 benchmarks
Frequently Asked Questions (3)
Can I compare o3-pro and Qwen3.5 Flash on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for o3-pro and Qwen3.5 Flash today?
o3-pro: $20.00 input / $80.00 output per 1M tokens Qwen3.5 Flash: $0.10 input / $0.40 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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