Model comparison

GPT-5.5 vs Soofi S 30B-A3B

Data verified July 15, 2026

Head-to-head evidence from 2 shared benchmark results across 1 category. Overall scores shown here use BenchLM's provisional ranking lane.

GPT-5.5

OpenAI

78/100

Margin

33.0pts

← winning

Soofi S 30B-A3B

Soofi Project

45/100

1 category wins0 category wins

Verified leaderboard positions: GPT-5.5 #3; Soofi S 30B-A3B unranked

Evidence parity. GPT-5.5 and Soofi S 30B-A3B share 2 comparable benchmark results. 1 of 8 categories are comparable. 55 results are unique to GPT-5.5; 6 to Soofi S 30B-A3B.

Updated July 15, 2026

Shared results: 2
GPT-5.5 only: 55
Soofi S 30B-A3B only: 6
Comparable categories: 1 / 8

Pick GPT-5.5 if you want the stronger benchmark profile. Soofi S 30B-A3B only becomes the better choice if you want the cheaper token bill 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

GPT-5.5 is clearly ahead on the provisional aggregate, 78 to 45. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

GPT-5.5's sharpest advantage is in knowledge, where it averages 57.8 against 49.9. The single biggest benchmark swing on the page is GPQA, 93.6% to 43.4%.

GPT-5.5 is also the more expensive model on tokens at $5.00 input / $30.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Soofi S 30B-A3B. That is roughly Infinityx on output cost alone. GPT-5.5 is the reasoning model in the pair, while Soofi S 30B-A3B 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.

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 scores and score margins for GPT-5.5 and Soofi S 30B-A3B
Category	GPT-5.5	Δ	Soofi S 30B-A3B
Knowledge	GPT-5.557.8	Margin← 7.9	Soofi S 30B-A3B49.9
Agentic	GPT-5.581.6	MarginNo overlap	Soofi S 30B-A3BNot measured
Coding	GPT-5.558.6	MarginNo overlap	Soofi S 30B-A3BNot measured
Reasoning	GPT-5.585.0	MarginNo overlap	Soofi S 30B-A3BNot measured
Math	GPT-5.547.6	MarginNo overlap	Soofi S 30B-A3BNot measured
Multimodal	GPT-5.570.4	MarginNo overlap	Soofi S 30B-A3BNot measured

Decisive benchmark drivers

The largest measured benchmark gaps in this matchup, with exact reported values.

A · GPT-5.5B · Soofi S 30B-A3B

GPQA
Knowledge
Source ↗
A 93.6%B 43.4%
Winner: GPT-5.5Δ 50.2
GPQA: GPT-5.5 scored 93.6%; Soofi S 30B-A3B scored 43.4%. GPT-5.5 wins this benchmark.

Operational comparison

Runtime and commercial metrics are compared only when both models have a complete sourced value.

Metric	GPT-5.5	Soofi S 30B-A3B	Comparison
Input / output priceUSD per 1M tokens	GPT-5.5$5 input / $30 output	Soofi S 30B-A3B$0 input / $0 output	Soofi S 30B-A3B has the lower combined listed price.
Generation speedtokens per second	GPT-5.5Not available	Soofi S 30B-A3BNot available	A complete speed comparison is not available.
First-answer latencyseconds to first token	GPT-5.5Not available	Soofi S 30B-A3BNot available	A complete latency comparison is not available.
Context windowmaximum listed tokens	GPT-5.51M	Soofi S 30B-A3B1M	Listed context windows are equal.

Benchmark Deep Dive

Agentic

22 benchmarks

Benchmark	GPT-5.5	Soofi S 30B-A3B	Result
Terminal-Bench 2.0Source	82%	—	Not comparable
CyberGymSource	81.8%	—	Not comparable
BrowseCompSource	84.4%	—	Not comparable
OSWorld-VerifiedSource	78.7%	—	Not comparable
MCP AtlasSource	75.3%	—	Not comparable
ToolathlonSource	55.6%	—	Not comparable
τ²-bench resultsSource	98%	—	Not comparable
AA Agentic IndexSource	44.9%	—	Not comparable
APEX-Agents-AASource	37.7%	—	Not comparable
GDPval-AASource	49.7%	—	Not comparable
GDPval-AASource	1494	—	Not comparable
Gert LabsSource	72.93%	—	Not comparable
ResearchClawBenchSource	17.0%	—	Not comparable
OSWorld 2.0Source	13.0%	—	Not comparable
JobBenchSource	42.7%	—	Not comparable
ExploitGymSource	13.4%	—	Not comparable
AA BriefcaseSource	1158	—	Not comparable
AA AutomationBenchSource	42.1%	—	Not comparable
AA EnterpriseOps-GymSource	46.6%	—	Not comparable
AA Harvey LABSource	4.2%	—	Not comparable
AA ITBenchSource	45.8%	—	Not comparable
AA Tau3 BankingSource	31.3%	—	Not comparable

Coding

12 benchmarks

Benchmark	GPT-5.5	Soofi S 30B-A3B	Result
SWE-bench ProSource	58.6%	—	Not comparable
Terminal-Bench 2.0Source	82.0%	—	Not comparable
Vibe Code BenchSource	69.85%	—	Not comparable
React Native EvalsSource	84.7%	—	Not comparable
cursorBench31Source	59.2%	—	Not comparable
cursorBench32Source	58.4%	—	Not comparable
AA Coding IndexSource	74.9%	—	Not comparable
Terminal-Bench HardSource	60.6%	—	Not comparable
AA-SciCodeSource	56.1%	—	Not comparable
FrontierCodeSource	43.0%	—	Not comparable
AA Terminal-Bench 2.1Source	84.3%	—	Not comparable
HumanEvalSource	—	73.8%	Not comparable

Reasoning

7 benchmarks

Benchmark	GPT-5.5	Soofi S 30B-A3B	Result
MRCR v2 64K-128KSource	83.1%	—	Not comparable
MRCR v2 128K-256KSource	87.5%	—	Not comparable
ARC-AGI-2Source	85%	—	Not comparable
AA-LCRSource	74.3%	—	Not comparable
CritPtSource	27.1%	—	Not comparable
BBHSource	—	78.8%	Not comparable
DROPSource	—	66.5%	Not comparable

KnowledgeGPT-5.5 wins

12 benchmarks

Benchmark	GPT-5.5	Soofi S 30B-A3B	Result
GPQASource	93.6%	43.4%	GPT-5.5 leads
GPQA-DSource	93.6%	43.4%	GPT-5.5 leads
HLESource	52.2%	—	Not comparable
HLE w/o toolsSource	41.4%	—	Not comparable
Artificial Analysis Intelligence IndexSource	54.8%	—	Not comparable
AA-GPQA DiamondSource	93.5%	—	Not comparable
AA-HLESource	44.3%	—	Not comparable
AA-Omniscience IndexSource	20.1%	—	Not comparable
AA-Omniscience AccuracySource	56.9%	—	Not comparable
AA-Omniscience Hallucination RateSource	85.5%	—	Not comparable
MMLU-ProSource	—	51.4%	Not comparable
AGIEvalSource	—	66.9%	Not comparable

Math

4 benchmarks

Benchmark	GPT-5.5	Soofi S 30B-A3B	Result
FrontierMath (legacy)Source	51.7%	—	Not comparable
FrontierMath v2 (Tiers 1-3)Source	51.700%	—	Not comparable
FrontierMath v2 (Tier 4)Source	35.400%	—	Not comparable
GSM8KSource	—	86.1%	Not comparable

Multimodal

5 benchmarks

Benchmark	GPT-5.5	Soofi S 30B-A3B	Result
MMMU-ProSource	81.2%	—	Not comparable
MMMU-Pro w/ PythonSource	83.2%	—	Not comparable
OfficeQA ProSource	54.1%	—	Not comparable
AA-MMMU-ProSource	79.9%	—	Not comparable
Design Arena WebsiteSource	1287	—	Not comparable

Inst. Following

1 benchmarks

Benchmark	GPT-5.5	Soofi S 30B-A3B	Result
AA-IFBenchSource	75.9%	—	Not comparable

Frequently Asked Questions (2)

Which is better, GPT-5.5 or Soofi S 30B-A3B?

GPT-5.5 is ahead on BenchLM's provisional leaderboard, 78 to 45. The biggest single separator in this matchup is GPQA, where the scores are 93.6% and 43.4%.

Which is better for knowledge tasks, GPT-5.5 or Soofi S 30B-A3B?

GPT-5.5 has the edge for knowledge tasks in this comparison, averaging 57.8 versus 49.9. Inside this category, GPQA is the benchmark that creates the most daylight between them.

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