Claude Opus 5.5

By Anthropic. 5 results on 5 boards, copied as published. Different boards, different metrics: don't add them up.

License (as listed)Proprietary

Hosting regionNot confirmed

Boards5

Code

No result on the boards we captured

Agentic / terminal

64.85%Terminal-Bench 4.0
Opus 5.5 (max) · Resolution rate
Claude Code · as of 2026-09-22 ↗

Websites

1807LMArena WebDev Arena
claude-opus-5.5-max · Arena score · board #1
LMArena WebDev (agentic front-end tasks) · as of 2026-10-22 ↗
90.29%Vals AI Vibe Code Bench v1.1
Claude Opus 5.5 · Score % · board #5
OpenHands · as of 2026-10-20 ↗

Design

1389Design Arena (All categories)
claude-opus-5-5 · Elo · board #1
Design Arena · as of 2026-10-24 ↗

Android

32.7%Android Bench 2.0 (long-horizon, 30 tasks)
Claude Opus 5.5 · Pass rate
claude-code · as of 2026-10-06 ↗

iOS

No mature public leaderboard

Available in

No plan row in our pricing data names this model version.

Use cases with this model

Claude Opus 5.5Claude Sonnet 5.5

A business tycoon game "85% done … All built with Opus 5.5 + Sonnet 5.5"

Builder: @alexcooldev
Posted: Oct 15, 2026
Plan: —
Cost: Not disclosed

CodeRead the post

x.com · link re-checked 2026-10-16

Claude Opus 5.5

A Picasso-style three.js Tetris; Opus 5.5 also played and recorded the game itself

Builder: @SimonasLTU1
Posted: Oct 15, 2026
Plan: —
Cost: Not disclosed

DesignRead the post

x.com · link re-checked 2026-10-16

GPT-6.1 SolClaude Opus 5.5

A game "in about two weeks". GPT-6.1 Sol made the assets, Opus 5.5 did "most of the coding and game logic"

Builder: @hakimieiqbal
Posted: Oct 15, 2026
Plan: —
Cost: Not disclosed

CodeRead the post

x.com · link re-checked 2026-10-16

Claude Opus 5.5Model test

Cost (user-reported): "look what it built through the API in 3 minutes for $0.19. Claude Opus 5.5 took 15 minutes and $2.61 on the same prompt."

Builder: @0xKense1
Posted: Oct 15, 2026
Plan: —
Cost: Not disclosed

DesignRead the post

x.com · link re-checked 2026-10-16

Claude Opus 5.5Gemini 4 ArgonModel test

Test: "Same prompt and same references, Opus 5.5 vs Gemini 4 Argon. Opus did it in one shot. Argon got 3 rounds of feedback and still can't match…

Builder: @anxuanng
Posted: Oct 14, 2026
Plan: —
Cost: Not disclosed

DesignRead the post

x.com · link re-checked 2026-10-16

Claude Opus 5.5Second-hand

An "Altersteilzeit" (German partial-retirement) countdown app, built in 5 days over 16 versions with badges and mini-games

Builder: Thorsten Meyer, as reported by the Good Sidekick Team
Posted: Oct 13, 2026
Plan: —
Cost: Not disclosed

DesignRead the post

goodsidekick.com · web source · link re-checked 2026-10-16

Claude Opus 5.5Second-hand

"Destroy Any Website", a weekend browser sandbox game that turns any URL into destructible 2D terrain (TypeScript + Canvas 2D, multiplayer)

Builder: Hugo (u/HugoDzz), as reported by the Hitechreports Desk via XDA
Posted: Oct 13, 2026
Plan: —
Cost: Not disclosed

WebsitesDesignRead the post

hitechreports.com · web source · link re-checked 2026-10-16

Claude Opus 5.5Gemini 4 Argon

Hockey web game built with Opus 5.5, then optimized by Gemini Argon

Builder: astlouis44
Posted: Oct 13, 2026
Plan: Opus 5.5 / Gemini Argon
Cost: Not disclosed

DesignRead the post

news.ycombinator.com · web source · link re-checked 2026-10-16

GPT-6 AstraClaude Opus 5.5Fable 5.1+1Model test

Test: "Muse Wonder Full 1.0 on real work. 2 repos. 105 bugs … GPT-6 Astra (max): 45 Muse Wonder Full 1.0 (max): 44 Fable 5.1 (max): 43 Opus 5.5…

Builder: @PawelHuryn
Posted: Oct 13, 2026
Plan: —
Cost: Not disclosed

CodeRead the post

x.com · link re-checked 2026-10-16

Claude Opus 5.5Muse WonderModel test

Test: an animated Popeye website from scratch, Muse Wonder vs Opus 5.5

Builder: @exploraX_
Posted: Oct 13, 2026
Plan: —
Cost: Not disclosed

WebsitesDesignRead the post

x.com · link re-checked 2026-10-16

Claude Opus 5.5

"opus 5.5 with subagents is insanely cost…" (post text truncated; an agent fleet on worktrees)

Builder: @_MaxBlade
Posted: Oct 12, 2026
Plan: —
Cost: Not disclosed

CodeRead the post

x.com · link re-checked 2026-10-16

Claude Opus 5.5Grok 4.7

A childhood game idea prototyped "with Opus 5.5 and Grok 4.7" in three.js

Builder: @willstrk
Posted: Oct 10, 2026
Plan: —
Cost: Not disclosed

DesignCodeRead the post

x.com · link re-checked 2026-10-16

GPT-6 AstraClaude Opus 5.5

"Lit-Moss-Building": GPT-6 Astra designed it, Claude Opus 5.5 built it in three.js

Builder: @chetanankola
Posted: Oct 10, 2026
Plan: —
Cost: Not disclosed

DesignRead the post

x.com · link re-checked 2026-10-16

Claude CodeClaude Opus 5.5

The same browser game built once at each Opus 5.5 effort level, comparing time, tokens, cost and lines of code

Builder: Jaehyun Cho
Posted: Oct 9, 2026
Plan: API (measured with ccusage)
Cost: Stated: low $0.48 (32 s), medium $0.56, high $0.75, xhigh $1.36. Max took the longest (figure on the page)

WebsitesDesignRead the post

dev.to · web source · link re-checked 2026-10-16

GPT-6 AstraClaude Opus 5.5Kimi K3

MotionPromptGallery: "178 AI motion graphics … made with Opus 5.5, GPT-6 Astra, Kimi K3, Fable 5", Next.js on Vercel

Builder: @mikenevermiss
Posted: Oct 9, 2026
Plan: —
Cost: Not disclosed

WebsitesDesignRead the post

x.com · link re-checked 2026-10-16

Claude Opus 5.5

An isometric-object landing page "one shot again by opus 5.5" with a design skill

Builder: @itsnotryan
Posted: Oct 8, 2026
Plan: —
Cost: Not disclosed

WebsitesDesignRead the post

x.com · link re-checked 2026-10-16

CursorClaude Opus 5.5

A Cursor agent running Opus 5.5 was blocked mid-deploy: "53 files edited … request blocked under anthropic's usage policy. no rule named"

Builder: @sudoingX
Posted: Oct 8, 2026
Plan: —
Cost: Not disclosed

CodeRead the post

x.com · link re-checked 2026-10-16

GPT-6 AstraClaude Opus 5.5

A one-shot interactive visualization of Calvino's Invisible Cities

Builder: Piotr Migdał
Posted: Oct 7, 2026
Plan: API
Cost: Stated: Opus 5.5: about $74 in API tokens, 1h25m. GPT-6 Astra: about $10, 53 min at medium effort

DesignRead the post

quesma.com · web source · link re-checked 2026-10-16

DeepSeek V4 ProGLM 5.3GPT-6 Astra+5

Same 3D prompt one-shot across 8 models incl. Mistral Large 4

Builder: @domsilvestre
Posted: Oct 6, 2026
Plan: —
Cost: Not disclosed

DesignRead the post

x.com · link re-checked 2026-10-16

Claude Opus 5.5

Low-poly WebGL SimCity 2000 clone: decompiled with Ghidra and ported function by function using 27 subagents

Builder: drdator
Posted: Oct 6, 2026
Plan: Opus 5.5
Cost: Not disclosed

WebsitesRead the post

news.ycombinator.com · web source · link re-checked 2026-10-16

Claude CodeClaude Opus 5.5

"Montanha: Zero Day", a full PWA browser game built in one day (vanilla ES modules, Canvas, procedural WebAudio, service worker)

Builder: Tiago Vilas Boas
Posted: Oct 4, 2026
Plan: Opus 5.5 on a subscription usage allotment. Tier not named
Cost: Stated: About half of the daily allotment". Sprites: 590 Artlist credits. Also mentions one separate ticket reaching $402 over nine headless Claude Code runs

WebsitesDesignRead the post

dev.to · web source · link re-checked 2026-10-16

Claude Opus 5.5Grok 4.7

with Opus 5.5 being what it is, there's really zero reason to use Grok 4.7 unless…

Builder: @mikepat711
Posted: Oct 3, 2026
Plan: —
Cost: Not disclosed

CodeRead the post

x.com · link re-checked 2026-10-16

GPT-6 AstraClaude Opus 5.5

StarSkirmish Hillclimb: LLMs write C++ StarCraft: BW bots (BWAPI) with no time limit

Builder: __cayenne__
Posted: Oct 2, 2026
Plan: GPT-6 Astra, Claude 5.5 Opus
Cost: Not disclosed

CodeRead the post

news.ycombinator.com · web source · link re-checked 2026-10-16

GPT-6.1 SolClaude Opus 5.5

"I wanted to visualize what actually happens inside an LLM", built with Claude Opus 5.5 + GPT-6.1 Sol

Builder: @Kimiidev
Posted: Oct 2, 2026
Plan: —
Cost: Not disclosed

DesignRead the post

x.com · link re-checked 2026-10-16

CursorClaude Opus 5.5

A full redesign of Bento over a weekend with Opus 5.5 via Cursor Projects, "almost entirely without being at the computer"

Builder: @jessethanley
Posted: Sep 29, 2026
Plan: —
Cost: Not disclosed

WebsitesDesignRead the post

x.com · link re-checked 2026-10-16

Claude CodeClaude Opus 5.5DeepSeek V4.1 Flash

Pointed Claude Code at self-hosted DeepSeek V4.1 Flash on 4x H200 to replace Opus; measured speed and cost

Builder: Jason Shouldice
Posted: Sep 27, 2026
Plan: Claude Code plans; 4x H200
Cost: Stated: $9.19/h" box; Claude "about $1 per merged change"; DeepSeek "$1.15-$4" per shipped change

CodeRead the post

dev.to · web source · link re-checked 2026-10-16

ChatGPTOpus 5.5

3D kart racing game — characters via Nano Banana and ChatGPT, 3D via Tripo3D

Builder: @KenLin1985
Posted: Sep 26, 2026
Plan: —
Cost: Not disclosed

WebsitesDesignRead the post

x.com · link re-checked 2026-10-16

Claude Opus 5.5

A Zillow-photos → 3D walkthrough video, rerun "with Opus 5.5. One shot"

Builder: @realYunfanYe
Posted: Sep 26, 2026
Plan: —
Cost: Not disclosed

DesignRead the post

x.com · link re-checked 2026-10-16

PerplexityOpus 5.5

Planned a basement office and treadmill room: 5 styled, to-scale 3D designs with real IKEA parts and prices, built and deployed in one chat

Builder: @menonvi
Posted: Sep 26, 2026
Plan: —
Cost: Not disclosed

WebsitesDesignRead the post

x.com · link re-checked 2026-10-16

GPT-6 AstraClaude Opus 5.5Kimi K3Model test

Cost (test): "Opus 5.5: $8.95 | 10 mins GPT-6 Astra: $7.45 | 8 mins GPT-6 Sol: $3.90 | 5 mins Kimi K3: $4.04 | 6 mins" (Eiffel Tower in three.js)

Builder: @Bhavani_00007
Posted: Sep 23, 2026
Plan: —
Cost: Not disclosed

DesignRead the post

x.com · link re-checked 2026-10-16

Same family: Claude 12

Claude CodeClaude Sonnet 5.5

Rebuilt Shopify's four AI "gates" in headless Claude Code on tinydb and measured which gates catch bugs

Builder: AI Dive
Posted: Oct 14, 2026
Plan: Sonnet 5.5
Cost: Stated: $0.085" (no gate) to "$0.28" per run

CodeRead the post

dev.to · web source · link re-checked 2026-10-16

Claude CodeClaude family

An App Store approval/launch skill for Claude Code and Codex, "after launching 2 apps"

Builder: @tobiadonadon_
Posted: Oct 9, 2026
Plan: —
Cost: Not disclosed

iOSRead the post

x.com · link re-checked 2026-10-16

Claude CodeClaude family

A backtesting engine for trading strategies built with Claude Code

Builder: @milesdeutscher
Posted: Oct 8, 2026
Plan: —
Cost: Not disclosed

CodeRead the post

x.com · link re-checked 2026-10-16

Claude Sonnet 5.5

"Understory", an action/puzzle RPG across 5 biomes. Sonnet 5.5 was given "full artistic control … made in a couple days"

Builder: @DannyLimanseta
Posted: Oct 6, 2026
Plan: —
Cost: Not disclosed

DesignCodeRead the post

x.com · link re-checked 2026-10-16

Claude Sonnet 5.5

A push-to-talk voice assistant: Scribe v2 → Sonnet 5.5 → ElevenLabs v4 on Cloudflare Workers

Builder: @thinkingtraces
Posted: Oct 6, 2026
Plan: —
Cost: Not disclosed

CodeRead the post

x.com · link re-checked 2026-10-16

Claude CodeOpus

App written 100% by AI with Opus, using hard design rules

Builder: @tvykruta
Posted: Sep 30, 2026
Plan: —
Cost: Not disclosed

CodeRead the post

x.com · link re-checked 2026-10-16

All 12 Claude use cases →

Sources

lmarena.ai/leaderboard/webdev vals.ai/benchmarks/vibe-code developer.android.com/bench tbench.ai/leaderboard designarena.ai/leaderboard

Claude Opus 5.5

Available in

Use cases with this model

A business tycoon game "85% done … All built with Opus 5.5 + Sonnet 5.5"

A Picasso-style three.js Tetris; Opus 5.5 also played and recorded the game itself

A game "in about two weeks". GPT-6.1 Sol made the assets, Opus 5.5 did "most of the coding and game logic"

Cost (user-reported): "look what it built through the API in 3 minutes for $0.19. Claude Opus 5.5 took 15 minutes and $2.61 on the same prompt."

Test: "Same prompt and same references, Opus 5.5 vs Gemini 4 Argon. Opus did it in one shot. Argon got 3 rounds of feedback and still can't match…

An "Altersteilzeit" (German partial-retirement) countdown app, built in 5 days over 16 versions with badges and mini-games

"Destroy Any Website", a weekend browser sandbox game that turns any URL into destructible 2D terrain (TypeScript + Canvas 2D, multiplayer)

Hockey web game built with Opus 5.5, then optimized by Gemini Argon

Test: "Muse Wonder Full 1.0 on real work. 2 repos. 105 bugs … GPT-6 Astra (max): 45 Muse Wonder Full 1.0 (max): 44 Fable 5.1 (max): 43 Opus 5.5…

Test: an animated Popeye website from scratch, Muse Wonder vs Opus 5.5

Figma clone ("fully featured") in 3 hours / 8 prompts, plus Meet, Docs, Telegram and Linear clones

"opus 5.5 with subagents is insanely cost…" (post text truncated; an agent fleet on worktrees)

A childhood game idea prototyped "with Opus 5.5 and Grok 4.7" in three.js

"Lit-Moss-Building": GPT-6 Astra designed it, Claude Opus 5.5 built it in three.js

The same browser game built once at each Opus 5.5 effort level, comparing time, tokens, cost and lines of code

MotionPromptGallery: "178 AI motion graphics … made with Opus 5.5, GPT-6 Astra, Kimi K3, Fable 5", Next.js on Vercel

An isometric-object landing page "one shot again by opus 5.5" with a design skill

A Cursor agent running Opus 5.5 was blocked mid-deploy: "53 files edited … request blocked under anthropic's usage policy. no rule named"

A one-shot interactive visualization of Calvino's *Invisible Cities*

Same 3D prompt one-shot across 8 models incl. Mistral Large 4

Low-poly WebGL SimCity 2000 clone: decompiled with Ghidra and ported function by function using 27 subagents

"Montanha: Zero Day", a full PWA browser game built in one day (vanilla ES modules, Canvas, procedural WebAudio, service worker)

with Opus 5.5 being what it is, there's really zero reason to use Grok 4.7 unless…

StarSkirmish Hillclimb: LLMs write C++ StarCraft: BW bots (BWAPI) with no time limit

"I wanted to visualize what actually happens inside an LLM", built with Claude Opus 5.5 + GPT-6.1 Sol

A full redesign of Bento over a weekend with Opus 5.5 via Cursor Projects, "almost entirely without being at the computer"

Pointed Claude Code at self-hosted DeepSeek V4.1 Flash on 4x H200 to replace Opus; measured speed and cost

3D kart racing game — characters via Nano Banana and ChatGPT, 3D via Tripo3D

A Zillow-photos → 3D walkthrough video, rerun "with Opus 5.5. One shot"

Planned a basement office and treadmill room: 5 styled, to-scale 3D designs with real IKEA parts and prices, built and deployed in one chat

Two models each built Pokémon Emerald "worms" (security research); compared bugs found

Cost (test): "Opus 5.5: $8.95 | 10 mins GPT-6 Astra: $7.45 | 8 mins GPT-6 Sol: $3.90 | 5 mins Kimi K3: $4.04 | 6 mins" (Eiffel Tower in three.js)

Same family: Claude 12

Rebuilt Shopify's four AI "gates" in headless Claude Code on tinydb and measured which gates catch bugs

An App Store approval/launch skill for Claude Code and Codex, "after launching 2 apps"

A backtesting engine for trading strategies built with Claude Code

"Understory", an action/puzzle RPG across 5 biomes. Sonnet 5.5 was given "full artistic control … made in a couple days"

A push-to-talk voice assistant: Scribe v2 → Sonnet 5.5 → ElevenLabs v4 on Cloudflare Workers

App written 100% by AI with Opus, using hard design rules

Sources

The weekly diff

A one-shot interactive visualization of Calvino's Invisible Cities