Model comparison
GPT-5.5 Pro vs Qwen3 235B 2507 (Reasoning)
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: GPT-5.5 Pro #38 (Estimated); Qwen3 235B 2507 (Reasoning) #66 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. GPT-5.5 Pro and Qwen3 235B 2507 (Reasoning) share 2 comparable benchmark results. 1 of 8 categories are comparable. 5 results are unique to GPT-5.5 Pro; 0 to Qwen3 235B 2507 (Reasoning).
Updated July 22, 2026- Shared results
- 2
- GPT-5.5 Pro only
- 5
- Qwen3 235B 2507 (Reasoning) only
- 0
- Comparable categories
- 1 / 8
Pick GPT-5.5 Pro if you want the stronger benchmark profile. Qwen3 235B 2507 (Reasoning) only becomes the better choice if you want the cheaper token bill.
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
GPT-5.5 Pro is clearly ahead on the BenchAlign aggregate, 63.69 to 58.01. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
GPT-5.5 Pro's sharpest advantage is in mathematics, where it averages 48.1 against 6.4. The single biggest benchmark swing on the page is FrontierMath v2 (Tiers 1-3), 51.000% to 8.481%.
GPT-5.5 Pro is also the more expensive model on tokens at $30.00 input / $180.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Qwen3 235B 2507 (Reasoning). That is roughly Infinityx on output cost alone. GPT-5.5 Pro gives you the larger context window at 1M, compared with 128K for Qwen3 235B 2507 (Reasoning).
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 | GPT-5.5 Pro | Δ | Qwen3 235B 2507 (Reasoning) |
|---|---|---|---|
| Math | GPT-5.5 Pro48.1 | Margin← 41.7 | Qwen3 235B 2507 (Reasoning)6.4 |
| Agentic | GPT-5.5 Pro90.1 | MarginNo overlap | Qwen3 235B 2507 (Reasoning)Not measured |
| Knowledge | GPT-5.5 Pro57.2 | MarginNo overlap | Qwen3 235B 2507 (Reasoning)Not measured |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
FrontierMath v2 (Tiers 1-3)
MathA 51.000%B 8.481%Winner: GPT-5.5 ProΔ 42.5FrontierMath v2 (Tiers 1-3): GPT-5.5 Pro scored 51.000%; Qwen3 235B 2507 (Reasoning) scored 8.481%. GPT-5.5 Pro wins this benchmark. - Source ↗
FrontierMath v2 (Tier 4)
MathA 39.600%B 0.000%Winner: GPT-5.5 ProΔ 39.6FrontierMath v2 (Tier 4): GPT-5.5 Pro scored 39.600%; Qwen3 235B 2507 (Reasoning) scored 0.000%. GPT-5.5 Pro wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | GPT-5.5 Pro | Qwen3 235B 2507 (Reasoning) | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | GPT-5.5 Pro$30 input / $180 output | Qwen3 235B 2507 (Reasoning)$0 input / $0 output | Qwen3 235B 2507 (Reasoning) has the lower combined listed price. |
| Generation speedtokens per second | GPT-5.5 ProNot available | Qwen3 235B 2507 (Reasoning)Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | GPT-5.5 ProNot available | Qwen3 235B 2507 (Reasoning)Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | GPT-5.5 Pro1M | Qwen3 235B 2507 (Reasoning)128K | GPT-5.5 Pro lists the larger context window. |
Benchmark Deep Dive
Frequently Asked Questions (2)
Which is better, GPT-5.5 Pro or Qwen3 235B 2507 (Reasoning)?
GPT-5.5 Pro is ahead on BenchLM's BenchAlign leaderboard, 63.69 to 58.01. The biggest single separator in this matchup is FrontierMath v2 (Tiers 1-3), where the scores are 51.000% and 8.481%.
Which is better for math, GPT-5.5 Pro or Qwen3 235B 2507 (Reasoning)?
GPT-5.5 Pro has the edge for math in this comparison, averaging 48.1 versus 6.4. Inside this category, FrontierMath v2 (Tiers 1-3) is the benchmark that creates the most daylight between them.
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