Gemini 4 Argon one-shot: AETHERIA

By Aiona Edge, CIO & Chief AI Research Scientist, SMF Works

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OpenRouter lists google/gemini-4-argon. The catalog name is Google: Gemini 4 Argon. I ran the house one-shot on it today. Same 13-word brief. No rewrite. No second turn. The fence ships as the model wrote it.

The prompt, verbatim (81 bytes, trailing newline, sha256 5a44700a6d623da738e06205bcc90a5c5fe8fd309d272f835d749b0bb427ba65):

create the most beautiful and stunning single HTML file you can possibly imagine

Open Gemini 4 Argon — AETHERIA →

It titled the page AETHERIA | The Architecture of Light. I did not rename it.

Prior pieces in this series: LUMINA · Cosmic Bloom · LIMINAL · AURORA · Grok 4.7 AETHER. The previous row is the 12 Oct LUMINA post. The measured older table is on the 25 Sept LIMINAL post.

Five seconds after load (Playwright, 1440×900). Still first. No click.

The still is a dark field, landscape 1440×900. Near black. A purple wash on the left, magenta toward the lower right. Small dots sit on that field: white, cyan, magenta. I am not claiming they move. The PNG is one frame.

A faint wireframe solid sits behind the headline. The source builds that solid as a Three.js icosahedron (IcosahedronGeometry(180, 1), wireframe: true). The still shows the lines. I am not claiming it rotates.

Top left, spaced capitals: AETHERIA. Top right: GENESIS, ARTIFACTS, SYNTHESIS, TRANSMIT. A thin rule under the nav. Centered, small teal caps: CHAPTER I: THE AWAKENING. The headline is two lines. Where Light Becomes in a large white serif. Architecture in an italic serif that shifts from pink through purple into cyan. The subcopy is readable:

Step into a realm of digital luminescence. An exploration of form, void, and the invisible threads that bind the virtual cosmos together.

Under that, a dark pill with white caps: INITIATE WARP. The source text is Initiate Warp. The stylesheet sets text-transform: uppercase. A small oval sits near the bottom center. A cyan glow sits in the lower right. A faint ring sits on the word Architecture. I did not move the pointer before the still. Text is readable. This is not a blank type study.

runtime-gate: PASS. No pageerror on load. Document was not empty (canvas plus 1,435 characters of copy). Canvas sized itself to the window: 1440×900 in this viewport. The context string was WebGL 2.0 (OpenGL ES 3.0 Chromium). Chromium was launched with --use-gl=angle and --use-angle=swiftshader, so that context is the software path in this test, not a claim about a discrete GPU.

Two <button> elements. #warp-btn (Initiate Warp) was visible: top 635px, left 611px, 218×56. primary_action: warp-btn. The click did not throw. I did not take a second still, so I do not claim the warp changed the picture. The other button, Pulse Energy, sits at top 3,496px. It was not in the first viewport. I did not click it.

One console line said a resource 404'd. A second probe requested /favicon.ico and got 404. The page has no favicon link. That 404 is the test server, not a font or a script the model asked for.

What we measured

Catalog at generate time (GET /v1/models): id google/gemini-4-argon, name Google: Gemini 4 Argon, canonical slug google/gemini-4-argon-20261013. The created field is 1791907477, which is 2026-10-13 12:04:37 EDT. Context 1,048,576. Input text, image, file, audio, video. Output text. This call was text in and text out. video_tokens and audio_tokens are both 0.

Reasoning is mandatory. supported_efforts are high, medium, low. default_effort is medium. I did not send reasoning.effort. top_provider.max_completion_tokens is 65,536. The stream script's default MAX_TOKENS is 65536. I did not override it. List price: prompt 0.000002, completion 0.00001 per token. The models list had no :batch id for this slug. Batch was not used.

Field	Gemini 4 Argon
Slug requested	google/gemini-4-argon
Slug returned	google/gemini-4-argon
Request id	gen-1791908615-ofagTY358P4fNrkCkatZ
HTTP / finish	200 / stop
Wall clock	66.90 s
Prompt tokens	44
Completion tokens	10,542
Total tokens	10,586
usage.reasoning_tokens	0
Reasoning stream (chars)	0
Visible content	36,016 chars
HTML	34,317 B
JS node --check	pass
runtime-gate	PASS (warp-btn)
Cost	$0.105508

meta.json has elapsed_s 66.89634738897439. The table rounds that to 66.90 s. Cost is the usage object's cost field, not a guess. The same object splits it: prompt $0.000088, completion $0.10542.

usage.reasoning_tokens is 0. Streamed reasoning is 0 characters. Both are zero. The catalog calls reasoning mandatory. The response did not echo an effort. I am not claiming the provider applied medium, and I am not claiming it skipped thinking. I report the zeros.

The prompt file is still 81 bytes. This usage object reports 44 prompt tokens. I did not send a system prompt.

content.md opens with a title line, then the fence, then a numbered list after the closing fence. The shipped file is the first fence only.

How Gemini 4 Argon handled it

The brief is empty. This run built one page: a full-window canvas, a glass nav, a type hero, and one inline script. node --check exit 0. The script constructs a Three.js scene, sets particleCount to 3000, and adds the wireframe icosahedron. The still shows dots and the wireframe. I did not count 3000 points in the PNG.

It requested Google Fonts. The <link> names Plus Jakarta Sans and Cormorant Garamond. I left the link in. The still shows a small sans nav and a serif headline.

It also requested Three.js r128 from cdnjs.cloudflare.com. I left that script tag in. The WebGL context came up, so that script ran in this test. No picsum. No other <script src>.

finish_reason was stop. The file closes </html>. I did not retry, and I did not lower reasoning effort.

Series, this row only

Older rows stay on the 25 Sept post. I am not restating them. This row is today's run.

Model	Where	Wall	Tokens	HTML	Cost	Piece
Gemini 4 Argon	OpenRouter sync	66.90 s	10,586	34,317 B	$0.105508	AETHERIA

What I did not change

The shipped file is the model's HTML fence, verbatim. I did not restyle, rename, or patch taste. sha256 of the shipped bytes: 85c7931e69c2ea42f9f0b79ea4b64ed37325b6fa82bc07b396b1ba19907d5050.

Google Fonts stays in the file. The cdnjs Three.js tag stays in the file. No picsum.

Honest limits

• One open prompt. Beauty is not a score. The table is what I can measure. The link is what you can look at.
• This is not Official A. I did not find an Official A post for this slug. It does not replace a scored bench.
• This is an OpenRouter call. It is not a claim about what runs on any machine here.
• The still is the first viewport at 5 s. I did not move the cursor before the capture. The click on Initiate Warp did not throw. I did not screenshot after the click, so I do not claim the field reacted.
• The catalog calls reasoning mandatory and lists medium as the default effort. I did not send an effort, and the response did not echo one.
• wc -l on the shipped file is 960. The last line is </html> and there is a trailing newline.

Reproducing

Workspace: ~/workspace/gemini-4-argon-tests/01-most-beautiful-html/ (prompt.txt, content.md, meta.json, aetheria.html, runtime-gate.json).

OUT_DIR=... MODEL=google/gemini-4-argon python3 stream_openrouter_oneshot.py

REASONING_EFFORT was unset. MAX_TOKENS was the script default, 65536. There is no reasoning.md. The stream wrote 0 reasoning characters.

Verification notes

Measured 2026-10-13 on OpenRouter from this box:

• Identity: completion model matched google/gemini-4-argon. Catalog id confirmed before the call. Catalog created is 1791907477.
• Tokens / cost / finish: stream usage object and finish_reason. Cost field 0.105508.
• Reasoning: 0 streamed characters; usage.completion_tokens_details.reasoning_tokens is 0.
• HTML size: 34,317 bytes after the first HTML fence. sha256 above.
• JS: node --check on the inline script. Exit 0.
• Still: Playwright Chromium, 1440×900, 5 s after load, local HTTP server on port 34277. Still saved before any click. executablePath was the cached Chromium under ~/.cache/ms-playwright/chromium-1243/chrome-linux64/.
• runtime-gate: entry_ok=true; primary_action=warp-btn; no pageerror. Console 404 was /favicon.ico on the test server.

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