GPT-5.5 Pro
BenchLM is tracking GPT-5.5 Pro, but this profile is currently excluded from the public leaderboard because it still lacks enough non-generated benchmark coverage to rank safely. Only non-generated public benchmark rows appear below.
GPT-5.5 Pro is a proprietary model with a 1M token context window. It uses explicit chain-of-thought reasoning, which typically improves performance on math and complex reasoning tasks at the cost of higher latency and token usage.
GPT-5.5 Pro sits inside the GPT-5.5 family alongside GPT-5.5. This profile currently has 4 of 153 tracked benchmarks. BenchLM only exposes non-generated benchmark rows publicly, so missing categories stay blank until a sourced evaluation is available.
Ranking Distribution
Category rank across 3 benchmark categories — sorted by best rank
Category Performance
Scores across all benchmark categories (0-100 scale)
Category Breakdown
Agentic
Coding
Reasoning
Knowledge
Math
Multilingual
Multimodal
Inst. Following
Benchmark Details
Only benchmark rows with an attached exact-source record are shown here. Source-unverified manual rows and generated rows are hidden from model pages.
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See how GPT-5.5 Pro stacks up against similar models
Frequently Asked Questions
How does GPT-5.5 Pro perform overall in AI benchmarks?
GPT-5.5 Pro has 4 published benchmark scores on BenchLM, but it does not yet have enough non-generated coverage to receive a global overall rank.
Is GPT-5.5 Pro good for knowledge and understanding?
GPT-5.5 Pro has visible benchmark coverage in knowledge and understanding, but BenchLM does not currently assign it a global category rank there.
Is GPT-5.5 Pro good for mathematics?
GPT-5.5 Pro has visible benchmark coverage in mathematics, but BenchLM does not currently assign it a global category rank there.
Is GPT-5.5 Pro good for agentic tool use and computer tasks?
GPT-5.5 Pro has visible benchmark coverage in agentic tool use and computer tasks, but BenchLM does not currently assign it a global category rank there.
Which sibling models are related to GPT-5.5 Pro?
GPT-5.5 Pro belongs to the GPT-5.5 family. Related variants on BenchLM include GPT-5.5.
Does GPT-5.5 Pro have full benchmark coverage on BenchLM?
Not yet. GPT-5.5 Pro currently has 4 published benchmark scores out of the 153 benchmarks BenchLM tracks. BenchLM only exposes non-generated public benchmark rows, so missing categories stay blank until a sourced evaluation is available.
What is the context window size of GPT-5.5 Pro?
GPT-5.5 Pro has a context window of 1M, which determines how much text it can process in a single interaction.
Related Resources
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