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Higgsfield Prompts GPT-6.1 Sol and Claude Sonnet 5.5 to Build a Browser Three.js Shooter

September 29, 2026 at 18:27 EDT

Foundation Models
Software Dev & Coding

Higgsfield on Tuesday prompted OpenAI's new GPT-6.1 Sol and Anthropic's Claude Sonnet 5.5 to build a Three.js shooter that runs live in the browser. The company put both models on the same task and did not say which result played better, how long the build took, or what it cost.

September 29, 2026 · Higgsfield

A browser shooter, two new models

Higgsfield prompted GPT-6.1 Sol and Claude Sonnet 5.5 to build a Three.js shooter live in the browser. Both list at one-fifth of GPT-6 Astra's input price.

Input price per million tokens

Each block is $1. Sol and Sonnet match. Astra is five times that rate.

GPT-6.1 Sol

Sonnet 5.5

Opus 5.5

$10

GPT-6 Astra

Terminal-Bench 4.0, Anthropic run

Each block is about 5 points. Sonnet 5.5 clears Sonnet 5 and edges Opus 5.5.

10.3%

Sonnet 5

66.4%

Opus 5.5

70.6%

Sonnet 5.5

WHAT HOLDS UP

Same $2 and $10 list price. Sonnet 5.5 beats Opus 5.5 on Anthropic's coding bench. Unity said it finished 90 percent of editor tasks that count only if they run.

WHAT IS MISSING

The shooter named no winner and no cost. At max effort Sonnet 5.5 was the heaviest talker measured, about $7.60 a task. Astra still leads hard science work.

From prompt to a playable tab

1. Prompt

Ask for a shooter on Higgsfield

→

2. Code

The model writes Three.js

→

3. Play

It runs live in the browser

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