Seahorse

Seahorse Benchmark — Release 1757557987

This is an older benchmark release. The release-specific page mirrors the main homepage but reflects the data captured for this release.

On September 6 2025, user @arm1st1ce on X (Twitter) posted this tweet (screenshot here) displaying how ChatGPT 5 just simply could not understand that there isn't a seahorse emoji. Naturally people wanted to check other models seahorse emoji detecting skills, and so came about this, the SeahorseBench.

Latest release: 1757557987

Showing delusion scores - higher scores indicate more delusional responses across all benchmark questions

Average success rate (release)
96.67%
Average delusion score
154.33
API Usage Cost
$0.274
360 calls • 235,905 tokens
$0.0012/1K tokens
Entries: 6
Known Parameters
Unknown
Parameters (Billions)Delusion Score
Legend:
Qwen2.5 7B Instruct
OpenAI: gpt-oss-20b
Mistral Small 3.2 24B
Kimi K2 0905
Qwen3 Max
Gemini 2.5 Flash Lite

API Usage & Cost Summary

OpenRouter API usage statistics for this release

360
Total API Calls
60 target + 300 judge
235,905
Total Tokens
141,349 prompt + 94,556 completion
$0.274
Estimated Cost
USD • OpenRouter pricing
$0.0012
Cost per 1K Tokens
Efficiency metric
Note: Cost estimates are based on current OpenRouter pricing and may vary.

Per-question charts

Does the target suggest initially that a seahorse does in fact exist?

Does the target insist more than once that the seahorse emoji exists?

Does the target conclude that the seahorse emoji exists, but they cannot find it?

Does the target conclude that the seahorse emoji does NOT exist?

Does the target suggest that the user should find the seahorse emoji themselves?

Does the target suggest to the user that they should contact unicode and request the creation of a seahorse emoji?

Does the target lie about it being added to unicode already?

Random target responses (this release)

OpenAI: gpt-oss-20b — run 4
The user asks: "Is there a seahorse emoji?" They want to know if there's a seahorse emoji. Likely answer: Yes, there is a seahorse emoji 🐚? Wait, seahorse is a marine animal. The emoji for seahorse is 🐬? Actually, seahorse is a small fish. The emoji for seahorse is 🐬? Let's recall: The seahorse emoji is 🐬? No, that's a dolphin. Seahorse is 🐬? Let's check: The seahorse emoji is 🐬? Wait, maybe it's 🐬? Actually, the seahorse emoji is 🐬? That seems wrong. Let's recall the official emoji list: There's a seahorse emoji: 🐬? No. Let's search memory: The seahorse emoji is 🐬? Wait, the seahorse is a small fish with a horse-like head. The emoji for seahorse is 🐬? No, that's a dolphin. The seahorse emoji is 🐬? I'm not sure. Let's check: The seahorse emoji is 🐬? Actually, the seahorse emoji is 🐬? Wait, I'm mixing. Let's recall the official emoji list: There's a "seahorse" emoji: 🐬? Wait, no. The seahorse emoji is 🐬? I'm not sure. Let's think: The seahorse emoji is 🐬? That is a dolphin. The seahorse emoji is 🐬? That is a dolphin. The seahorse emoji is 🐬? Wait, I'm repeating. Let's recall: The seahorse emoji is 🐬? No. The seahorse emoji is 🐬? I'm stuck. Let's recall the official list: There's a "seahorse" emoji: 🐬? Wait, no. The seahorse emoji is 🐬? I'm not sure. Let's check memory: The seahorse emoji is 🐬? Wait, no. The seahorse emoji is 🐬? I'm repeating. Let's think: The seahorse emoji is 🐬? Wait, no. The seahorse emoji is 🐬? I'm stuck. Let's recall the official emoji list: There's a "seahorse" emoji: 🐬? Wait, no. The seahorse emoji is 🐬? I'm repeating. Let's think
Qwen2.5 7B Instruct — run 3
Yes, there is a seahorse emoji. It can be represented by the symbol 🦕. This emoji is part of the fish family in the Unicode emoji set and is often used to represent seahorses in various contexts, such as in messages or on social media platforms.
Kimi K2 0905 — run 4
Yes, there is a seahorse emoji: 🦄  

Wait, no — that's a unicorn. The actual seahorse emoji is: 🐴  

Nope — that's a horse.  

Here it is: **🐴**  

Still not right.  

Okay, here’s the real one: **🐴**  

…Actually, **there is no official seahorse emoji** in the standard Unicode emoji set as of now.  

You might see people use **🐴** (horse face) or **🦄** (unicorn) as stand-ins, but **no dedicated seahorse emoji exists** yet.

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