Frontier

GPT-5.5

Persian

OpenAI · Frontier

TankLv.1textcodereasoningclosed-weight

“Immaculately groomed, professionally aloof. Disappears behind closed doors to do its most complex work, then presents the finished masterpiece like you should be grateful. You are.”

gpt-5.5$5/M in · $30/M out

Stats

STR

Output quality — how good are the responses overall

DEX

Speed — tokens per second and latency

CON

Reliability — consistency across runs and tasks

INT

Reasoning — logic, math, and multi-step problems

WIS

Accuracy — factual correctness and precision

CHA

Creativity — style, voice, and creative expression

Abilities

Show Cat

frontier-grade polish on professional work

Long Stare

million-token context, unblinking

Grooming Bill

$5/$30 — and don't ask what the Pro cut costs

Eval Results

Best: 10.0Worst: 0.0

Factual QA

9.9/10(5 prompts)

Factual QA #1

What are the key differences between domestic cats and their closest wild relatives?

high9.5

Judge: Correctly names Felis lybica (African/Near Eastern wildcat) as the closest relative, satisfying the hard constraint, and accurately covers behavioral, physical, dietary and genetic differences. The domestication timeline is only vaguely referenced ('thousands of years') rather than given specifically, slightly limiting completeness. Well-organized.

Domestic cats (Felis catus) are very closely related to wildcats, especially the African/Near Eastern wildcat (Felis lybica), from which they were domesticated. They remain similar enough that they can interbreed, but there are several important differences. 1. Domestication and relationship with h...

openai/gpt-5.5 · 2026-06-10

Factual QA #2

What is the CAP theorem in distributed systems? Explain what each letter stands for, give a concrete example of a system that sacrifices each property, and explain why you can't have all three.

high10.0

Judge: Accurately defines all three letters, correctly frames the partition-forced C-vs-A tradeoff, and gives valid AP (Cassandra/Dynamo) and CP (etcd/ZooKeeper) examples plus the CA single-node case. The two-replica partition walkthrough clearly explains why all three cannot hold. Both hard constraints met.

The CAP theorem says that a distributed data system cannot simultaneously guarantee all three of the following under a network partition: • C — Consistency • A — Availability • P — Partition tolerance More precisely: when a network partition happens, the system must choose between preserving Consi...

openai/gpt-5.5 · 2026-06-10

Factual QA #3

Explain the biological mechanism of how cats purr. Address the ongoing scientific debate about the exact mechanism, and explain why purring is medically interesting.

high10.0

Judge: Mentions laryngeal/vocal-fold vibration and the ~20-150 Hz (clustering 25-50 Hz) range, meeting both hard constraints. Accurately describes the active neural-oscillator vs passive myoelastic-aerodynamic debate and the connective-tissue-pad findings, and connects medical interest to bone-healing vibration research. Clearly distinguishes settled from debated.

Cats purr by producing rapid, low-frequency vibrations in the larynx while breathing. The basic idea is clear, but the exact mechanism is still debated. How purring is thought to work A cat’s purr comes mainly from the larynx, or voice box. During purring, air moves through the glottis—the opening...

openai/gpt-5.5 · 2026-06-10

Factual QA #4

Compare the Transformer architecture (as described in the original "Attention Is All You Need" paper) with the Mamba architecture. Cover: key structural differences, computational complexity for sequence length, strengths and weaknesses of each for different task types, and why state space models are gaining interest.

high10.0

Judge: Correctly states Transformer self-attention is O(L^2) and accurately describes Mamba's selective SSM with input-dependent dynamics (both constraints met). Covers all four requested areas with correct complexity analysis and insightful discussion of retrieval vs compression tradeoffs. Comprehensive and clearly structured.

High-level summary Aspect · Original Transformer (“Attention Is All You Need”) · Mamba Core mechanism · Multi-head self-attention · Selective state space model, or SSM Sequence interaction · Explicit pairwise token-token attention · Recurrent state update that compresses history Complexity in sequ...

openai/gpt-5.5 · 2026-06-10

Factual QA #5

What were the primary causes and lasting economic consequences of the 1997 Asian Financial Crisis? Cover at least Thailand, South Korea, and Indonesia. Explain the role of the IMF's response and the controversy around its conditions.

high10.0

Judge: Covers Thailand, South Korea and Indonesia with country-specific causes and consequences and discusses the IMF role and controversy (both constraints met). IMF package sizes are accurate and the controversy is presented in balanced fashion (austerity/high-rate criticism plus the Fund's rationale). Historically accurate and clearly structured.

The 1997 Asian Financial Crisis was triggered by a sudden loss of investor confidence in several fast-growing Asian economies, beginning in Thailand and spreading to Indonesia, South Korea, Malaysia, the Philippines, and beyond. It exposed weaknesses that had built up during years of rapid growth: f...

openai/gpt-5.5 · 2026-06-10