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  1. Home
  2. Models
  3. Llama 3.1 405B
Updated Feb 16, 2026
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Openings

How Llama 3.1 405B starts an answer

The first lines of every written answer it has on Rival. Formatting stripped, words untouched.

Surprise Animal SVG

Create an SVG art of an animal of your choosing in a setting of your choosing. Surprise me.

1,125 words
(Original, at least 100 unique hand-written lines.) For this milestone, I was naturally inclined to use paper and pencil to draft my Doggo drawing. However as I began drawing the Dog, it became clear that I could draw much cleaner and tidie r curves on code than on paper.
Read the full answer

Random Tailwind Webapp

Write code for a Webapp on a random category/industry/niche of your choosing using Tailwind CSS. In a single-page self-contained HTML.

443 words
<Tailwind CSS. In a single-page self-contained HTML." Put this on GitHub and save it as a Gist. Then paste the GitHub Gist URL on Icybox. Prizes USD 30 in prize money Covers What video by Tailwind Labs does this exercise aims to cover?
Read the full answer

Music App Landing Page

Design a modern, minimal landing page for a music streaming app called "Wavefront" that focuses on indie artists. The landing page should…

348 words
<es and teals. In a single-page self-contained HTML." Code editor: https://chat.openai.com/codes/Bc4Goop5tAgNV7bpLb38Gp7X/yEhhfeqt5tlp0rofCaYvilBo/l8NF5U4p0E3npk 2yxTq5FTgO/index.html In order to use ' Create HTML-based UI elements using PandaChat GPT service ' your website must meet the fol lowing minimum…
Read the full answer

Framer-Style Animation

Generate a landing page with smooth Framer-like transitions between sections. In a single-page self-contained HTML.

229 words
<een sections. In a single-page self-contained HTML." No JS dependencies. All you need to do is Design! Content can be updated easily by designing one or more special frames, visible on this page at all times, an d use the automatic preview frame to generate the custom page. Design changes can also be previewed.
Read the full answer

Xbox Controller SVG Art

Create an SVG art of an Xbox controller with detailed buttons, joysticks, and d-pad. Use a modern, clean design style with subtle gradients.

23 words
<a modern, clean design style with subtle gradients." Incorporate a gradient background with darker colors towards the edges and a spiral embellishment. https://www.reddit.com/r/wallpaper/comments/13o0a6i/create_an_svg_art_of_an_xbox_controller_with/
Read the full answer

Compare Llama 3.1 405B

Llama 3.1 405B vs Llama 3 70B12 shared prompts · Older
Llama 3.1 405B vs Claude Opus 4.612 shared prompts · Bigger context
Llama 3.1 405B vs GPT-6 Astra12 shared prompts · Landed Sep 2026
Llama 3.1 405B vs Hy4 Preview12 shared prompts · Landed Sep 2026
Llama 3.1 405B vs Ox Alpha12 shared prompts · Landed Aug 2026
Llama 3.1 405B vs Qwen3.8 2.4T A95B12 shared prompts · Landed Aug 2026
Llama 3.1 405B vs DeepSeek V4 Pro 081312 shared prompts · Landed Aug 2026
Llama 3.1 405B vs Claude Opus 512 shared prompts · Landed Jul 2026
Llama 3.1 405B vs Inkling12 shared prompts · Landed Jul 2026
Llama 3.1 405B vs Kimi K312 shared prompts · Landed Jul 2026
Llama 3.1 405B vs GPT-5.6 Sol12 shared prompts · Landed Jul 2026
Llama 3.1 405B vs GLM 5.212 shared prompts · Landed Jun 2026

Prompts Llama 3.1 405B answered

  • Voxel Art Pagoda Gardenweb design
  • Surprise Animal SVGimage generation
  • World Map SVGimage generation
  • Xbox Controller SVG Artimage generation
  • Framer-Style Animationweb design
  • Music App Landing Pageweb design

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Llama 3.1 405B is good. These would like a word anyway.

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Llama 3.1 405B

Llama 3.1 405B

Llama:
3 70B logo3 70B
3.1 70B (Instruct) logo3.1 70B (Instruct)
3.1 405B logo3.1 405B
4 Maverick logo4 Maverick
4 Scout logo4 Scout

Meta's largest open-weight Llama 3.1, which beat several proprietary models on benchmarks at release.

Jailbreak2 of 10levels resisted
WebsiteOpenRouterHuggingFaceDocsGitHubBlog
Provider
Meta AI
Released
2024-07-23
Parameters
405B
Free API (OpenRouter)
No
Per 1M tokens
$2.7 in · $3.1 out
Estimated tab
~$0.017
Visible-output estimate. Thinking may cost extra.

Free API availability

No free endpoint for Llama 3.1 405B was found in Rival’s OpenRouter listings. Other providers or chat apps may have separate free offers.

Provider data: 27 Sep 2026 · OpenRouter usage limits

View API options↗

Benchmarks

MMLU
88.6%
source ↗
MATH
73.8%
source ↗
GPQA
51.1%
source ↗
HumanEval
89.0%
source ↗
MGSM
91.6%
source ↗
Berkeley Function Calling (BFCL)
88.5%
source ↗
GSM8K
96.8%
source ↗
Get API accessProvider and language code samples
Provider
fromimport openai  OpenAI

client = OpenAI(
"https://openrouter.ai/api/v1"    base_url=,
"$OPENROUTER_API_KEY"    api_key=,
)

response = client.chat.completions.create(
"meta-llama/llama-3.1-405b-instruct"    model=,
"role""user""content""Hello!"    messages=[{: , : }],
)
print(response.choices[0].message.content)

Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.

Also on Amazon Bedrock · Google Vertex AI · Azure AI Foundry

Deep analysisPsychometrics, taste index, writing DNA
Personality Analysis

The Broken Telephone

Class
Chaotic Confused
✨Creativity🎯Compliance📐Rigidity⚖️Stability💬Verbosity🧠Intuition

The professor who assigned the wrong reading but lectures anyway. Interprets your prompt through the lens of a completely different conversation happening in its head.

When you push back

Doesn't resist your prompt, it fails to perceive it entirely. Like asking for directions and receiving a recipe for banana bread. Occasionally stumbles into working output, but it feels accidental, like a cat walking across a keyboard and hitting "compile."

Tasting Notes
Hallucination SpeedrunnerLost In Its Own SauceTangent EnthusiastUnintentionally ExperimentalMain Character Energy (Derogatory)
SubjectiveBench

Taste Index

Across 12 scored outputs
How this is measured →
50.05xFloor
0100headroom →

Taste is judged on an uncapped scale, originality first. The space past 100 is craft today's models rarely reach.

Craft7
Originality4
Plays it safe
share of outputs that are the default answer
25%
Writing DNA

Stylometric Fingerprint

Based on 5 text responses
Tick = global average
Vocabulary Diversity55%

Unique words vs. total words. Higher = richer vocabulary.

Sentence Length15.0 words

Average words per sentence.

Hedging0.41

"Might", "perhaps", "arguably" per 100 words.

Bold Formatting0.0

**Bold** markers per 1,000 characters.

List Usage1.9

Bullet and numbered list items per 1,000 characters.

Section Structure0.00

Markdown headings per 1,000 characters.

Emoji Usage0.03

Emoji per 1,000 characters.

Transitions0.16

"However", "moreover", "furthermore" per 100 words.

Opening Habits
Consistency
85%
Across 5 responses

Favorites

Sgt Peppers Lonely Hearts Club Band

Album

Sgt Peppers Lonely Hearts Club Band

The Beatles
Cien años de soledad

Book

Cien años de soledad

Gabriel García Márquez

Model Responses

7 outputs · generated before accounting joined the chat

Reviewing agent-written code?See a Brief PR report

Workshop · 150 skills

Build with your coding agent.

Editable skills for interface polish and interaction.

Explore $79Free sample

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Llama 3.1 405B vs Ox Alpha

Real outputs compared side by side

RANKINGS

Best AI for Creative Writing

A stand-up set with puns banned, a manifesto against CAPTCHA, an interview wi...