Playground · GPT-6 Luna model page

GPT-6 Luna in the playground

18 tests; our pick in 0. Each answer is linked to the test, where it runs live beside the other models'.

Our pick
0 of 18 tests
Checks passed
85% 57.5 of 68
All checks passed
8 of 18 tests
Rank
9 of 12 models by checks passed
Cost
$0.05 every try; $0.05 for the answers shown
Time
13 min every try; 13 min for the answers shown
Tries
18 for 18 answers
Thinking
28% of its output tokens
Every test GPT-6 Luna took. Choose Checks, Cost, Time or Thinking to sort.
TestOur notesChecksTimeCostThinking
A map of the world from memory
Drawing · 12 models
A very rough map of about twenty zigzag-edged polygons, and Australia is missing altogether: east of the Indian Ocean there is only a row of Indonesian islands and two slivers for New Zealand. Eurasia is one long sawtooth slab with no Scandinavia, Black Sea or Caspian, Africa touches Europe and Arabia so the Mediterranean and Red Sea are closed, and Japan sits in the sea south of Asia. North and South America, Africa, India and Greenland are recognisable. The left "PACIFIC OCEAN" label is cut off at the edge and "ATLANTIC OCEAN" runs onto Africa. The cheapest of the twelve answers, at $0.0019. 1.5 of 4 35 s $0.002 47%
Draw a unicorn
Drawing · 12 models
A sticker-style unicorn face in a lilac circle: big dark eyes, pink cheeks, a gold horn on the forehead between two pointed ears, a pink forelock and a pink-to-blue curly mane on either side. It is only a front-on head, so there are no legs, body or tail, and with cat-like ears and a head that narrows to a flat chin like a light bulb it reads more as a horned cartoon creature than a horse. The white highlight strokes on the horn and the mane run past their outlines. The cheapest of the twelve answers, at $0.0009 in 18 seconds. 1 of 3 18 s $0.001 28%
The Starry Night, redrawn in SVG
Drawing · 12 models
A flat, poster-like version: broad translucent ribbons of light blue sweep across the sky, curling into a hook in the middle and a loop under the moon, with eight spoked stars that look more like small suns. The crescent moon is top right but sits off-centre on a pale full disc that shows beside it. The cypress on the left is a dark green spear wrapped in vine-like strokes, with a star balanced on its tip, and the village is a row of plain, windowless tan houses with a hill drawn across their lower walls and the spire rising from the last one. Faint dashes and a canvas-grain pattern do not make it look painted (about 110 shapes, 16 KB). The cheapest of the twelve answers, at $0.0035. 3 of 4 53 s $0.004 4%
Ball bouncing in a spinning hexagon
Simulation · 12 models
A clean, uncluttered scene: a glowing blue hexagon turning clockwise at 0.62 rad/s, an orange ball, a small title card with a live speed read-out, and Pause and Reset buttons (Space and R work too). The bounce uses the wall's speed, and in our 20-second log the ball never sank into a wall or left. It drops from near the centre, loses height on the first bounces and then keeps hopping along the lower walls as they turn under it. There are no sliders and no way to throw the ball, and the ball has no marking, so you cannot see it spin. The cheapest of the twelve answers, at $0.0028. 3 of 3 42 s $0.003 42%
The solar system, to scale in time
Animation · 12 models
A polished dark page with all nine bodies labelled in small tags on leader lines that shift to stay clear of each other, Pause, Slower and Faster buttons, a slider from 0.25 to 100 days per second and a running "Day 71 · 0.20 Earth years" clock. Speeds are right (Mercury 4.15 laps per Earth year and Mars one lap every 1.88 in our tracking), Faster and Slower change the speed by 1.5× and Pause stops it. The planets start at fixed, made-up angles rather than real positions, there is no date, the Mercury tag sometimes covers the edge of the Sun, and even at the top speed Neptune takes ten minutes per lap. The cheapest of the twelve answers, at $0.0037. 3 of 3 56 s $0.004 28%
A product page from one feed row
Business · 12 models
A calm, well-made page in serif type on soft beige: three ribbed socks in charcoal, oat and moss fanned on a pale card captioned "Three pairs · one of each colour", size boxes showing the UK ranges and a details grid for material, weight, care and code. Every line traces back to the feed; the only slip is that the GTIN is labelled "Product code". The add button stays greyed out until you choose a size, then adding shows "Added to basket · Size M (UK 6–8)." and the basket count goes up; there is no basket drawer. The cheapest of the twelve answers, at $0.0028. 5 of 5 47 s $0.003 22%
A pricing table with a monthly/yearly switch
Web page · 12 models
A light page ("Make room for better conversations.") with three cards, the Team card outlined in purple under a "Highlighted plan" badge copied from the prompt, and a three-question FAQ that repeats only the brief. Clicking the Monthly and Yearly words changes £6 and £11 to £5 and £9 with "Billed yearly", and back. The switch itself is broken: its track never draws, so only a stray white dot shows, clicking the dot can only choose monthly, and nothing marks which billing is on. The cheapest of the twelve answers, at $0.002 in 25 seconds. 3.5 of 4 25 s $0.002 10%
Pelican riding a bicycle
Drawing · 12 models
A round white pelican in a teal cycling cap on a teal bicycle under a pale sky and sun. The long orange beak has a darker pouch beneath it, the body sits on the saddle, both feet rest on the pedals, and the bicycle is complete. But the neck is drawn as a loop from the body up to the head and back down, so it looks like a pair of arms hugging the belly, and nothing reaches the handlebars: the wing is a grey patch on its side. The cheapest of the twelve answers, at $0.001 in 20 seconds. 2.5 of 3 20 s $0.001 30%
Newton's cradle
Simulation · 12 models
Five steel balls hanging from a single bar with no stand, in a white card with a reset button; shift-click picks up several balls at once. A pulled ball follows the mouse on its string, and the transfer is clean: in the first two seconds the middle three move at most 1.4 px while the far ball swings out about 170 px, and pulling two balls sends two out. The fade is slow and gradual: the end balls still swing about 120 px between 10 and 20 seconds and about 20 px after a minute, while the middle three creep into a 12 px sway, and the row is still rocking slightly after two minutes. The released ball keeps a blue selection ring. The cheapest and fastest of the twelve answers, at $0.003 in 57 seconds. 3 of 3 57 s $0.003 56%
A newsletter email that works in email
Business · 12 models
A light, tidy email: a serif "A little warmth for autumn" header, a pale green Moss card with a "Shop Moss socks" button, a flat Moss swatch beside a three-sentence washing guide, and AUTUMN15 in a dashed box with "Offer ends 31 October", all in tables with inline styles and no style block. It sticks to the brief, with no prices, sizes, fibre blends, policies or address, though it calls Moss "much-loved", signs off "made in the UK" and links to a made-up hollowandpine.co.uk; unlike GPT-6.1 Sol's, it leaves no placeholder for a postal address. Like Sol's, it has no dark styles and declares itself light-only, so dark mode is left to the mail app. The cheapest and fastest of the twelve answers, at $0.001 in 27 seconds. 4.5 of 5 27 s $0.001 27%
A landing page for a photo-book app
Web page · 12 models
A soft green-and-cream page ("Keep the days you almost forgot.") with a drawn book and polaroids in the hero, three steps, a price card and a four-question FAQ. It repeats £19, 40 pages and a week throughout and invents no reviews, customer counts or extra prices; it does add that delivery is included, a row of five decorative stars with no rating behind them, and a © 2025 footer. The phone menu opens and nothing scrolls sideways at 390 px, but there the "40 pages of your kind of lovely" label covers the title of the hero book. The cheapest of the twelve answers, at $0.006 in 84 seconds. 2.5 of 3 84 s $0.006 5%
The jelly effect: frontier models, one prompt
Animation · 12 models
A rounded pink jelly on a pale page ("Jelly time"), drawn as an outline that ripples through a few wobble shapes. A click flattens the spot you hit by about 15 px, bulges back with a puff of sparkles and is still within half a second. Dragging never pulls the jelly towards the pointer: each movement knocks a dent into the near side (about 25 px on a slow pull, even when pulling outwards), and only a fast flick throws it into a big bean-shaped squash and swell, during which its shading shows as hard-edged rectangles. It settles within about a second. The cheapest and fastest of the twelve answers, at $0.004 in 56 seconds. 2.5 of 3 56 s $0.004 41%
Conway's Game of Life
Simulation · 12 models
A dark 80 by 50 board that starts empty, with play, pause, step, clear, a speed slider in generations per second, generation and population counts, and buttons for the three asked-for patterns that drop each one centred on your click. The rules are exact: the blinker flips, the drawn glider moves one cell diagonally in four steps and the pulsar repeats every three. But the Gosper gun is drawn wrongly (several cells in its left half are in the wrong place), so it churns into spreading debris instead of firing gliders. The cheapest of the twelve answers, at $0.0035. 3.5 of 4 53 s $0.003 40%
Flappy Bird in one file
Game · 12 models
A bright classic with an orange bird, soft green pipes, a sun, hills and a sandy ground, a "FLAPPY BIRD" title card and a best score. Space, clicks and taps all flap and gravity feels right; our steering script passed 36 pipes, scoring one for each, and hitting a pipe or the ground ends the run under "GAME OVER" with score and best. "Play again", Space or a tap starts a new run at 0 with a flap, but there is no ready pause, so a tap just after a crash restarts at once. The cheapest of the twelve answers, at $0.0028. 4 of 4 47 s $0.003 24%
Chess with every rule
Game · 12 models
A plain cream-and-green board with "White to move" above it, a New game button and the result below, but no move list, undo or flip. It refused both illegal moves, announced "White wins by checkmate." after Qxf7#, castled on both sides and took en passant, and our probes passed too: Black could not ignore Qh5+, promotion offers four pieces, and the ten-move stalemate ends with "Draw by stalemate." The board is laid out badly, though: a rank with no pieces on it shrinks to a strip, so at the start the four middle ranks are less than half the height of the others. The cheapest of the twelve answers, at $0.0046 in 69 seconds. 5 of 5 69 s $0.005 33%
A category page from a product feed
Business · 12 models
"North & Field": a calm shop with breadcrumbs, checkbox filters for brand, colour and size, min and max price boxes, a "Clear all" link and four sorts. Every price and rating matches the feed, and every filter, combination and sort we ran returned exactly the right jackets; an impossible pairing shows "No jackets found". It adds only a tagline and an intro line, with no claims on the products. Every jacket is drawn as the same short-sleeved shirt, and the colour and size lists sit in short scrolling boxes, so red, stone, yellow and the children's sizes stay hidden until you scroll them. The cheapest of the twelve answers, at $0.0033. 4 of 4 46 s $0.003 18%
An animated SVG logo
Drawing · 12 models
An orange-and-navy bird with a white eye darts in from the left past three short speed streaks, then a bold Arial "Kestrel" slides in with a short orange underline and "SPEED, DELIVERED" fades up beneath, all finished by about 1.9 seconds. It holds cleanly and uses no script or web fonts. But the bird's slide-in replaces its own position, so it ends up jammed against the left edge and a little high, and the whole lockup sits in the left half of a wide, empty frame. The cheapest of the twelve answers, at $0.0015. 4 of 4 30 s $0.002 63%
An analogue clock that tells the time
Drawing · 12 models
A cream dial with serif numerals in a brass bezel on a dark card headed "Local time", with a digital readout and the date underneath. The readout was right to the second, but the hands are not: each one turns about the bottom-right corner of the drawing instead of the centre, so at 10:42 the hour hand lay near 7 and the minute and second hands were off the dial, and the second hand spends most of each minute sweeping across the page outside the clock. The hands only line up near 12 o'clock. The cheapest of the twelve answers, at $0.0014. 2 of 4 25 s $0.001 26%

Time and cost are for the answer shown; when it took more than one try, the second line counts every try, and sorting uses every try. Thinking is the share of the answer's output tokens spent reasoning before it wrote.

Tries

Every answer came on the first try

Against the other models

Checks passed on each test

All models →

GPT-6 Luna's column is marked.

Share of checks passed by each model on each test; a star marks our pick.
TestClaude Opus 5.5GPT-6.1 SolKimi K3Claude Fable 5.1Muse Spark 1.3DeepSeek V4.1 FlashMistral Large 4Claude Haiku 5.5GPT-6 LunaGrok 4.7Qwen3.8 Max (0902)Gemini 3.8 Flash
A map of the world from memory 4/4Claude Opus 5.5: 4 of 4 checks, our pick3.5/4GPT-6.1 Sol: 3.5 of 4 checks4/4Kimi K3: 4 of 4 checks4/4Claude Fable 5.1: 4 of 4 checks3/4Muse Spark 1.3: 3 of 4 checks2/4DeepSeek V4.1 Flash: 2 of 4 checks3/4Mistral Large 4: 3 of 4 checks2.5/4Claude Haiku 5.5: 2.5 of 4 checks1.5/4GPT-6 Luna: 1.5 of 4 checks3.5/4Grok 4.7: 3.5 of 4 checks0.5/4Qwen3.8 Max (0902): 0.5 of 4 checks3/4Gemini 3.8 Flash: 3 of 4 checks
Draw a unicorn 2.5/3Claude Opus 5.5: 2.5 of 3 checks3/3GPT-6.1 Sol: 3 of 3 checks, our pick2.5/3Kimi K3: 2.5 of 3 checks2.5/3Claude Fable 5.1: 2.5 of 3 checks1.5/3Muse Spark 1.3: 1.5 of 3 checks1.5/3DeepSeek V4.1 Flash: 1.5 of 3 checks2/3Mistral Large 4: 2 of 3 checks2.5/3Claude Haiku 5.5: 2.5 of 3 checks1/3GPT-6 Luna: 1 of 3 checks2/3Grok 4.7: 2 of 3 checks2.5/3Qwen3.8 Max (0902): 2.5 of 3 checks1.5/3Gemini 3.8 Flash: 1.5 of 3 checks
The Starry Night, redrawn in SVG 4/4Claude Opus 5.5: 4 of 4 checks4/4GPT-6.1 Sol: 4 of 4 checks, our pick4/4Kimi K3: 4 of 4 checks4/4Claude Fable 5.1: 4 of 4 checks2.5/4Muse Spark 1.3: 2.5 of 4 checks1.5/4DeepSeek V4.1 Flash: 1.5 of 4 checks2.5/4Mistral Large 4: 2.5 of 4 checks2.5/4Claude Haiku 5.5: 2.5 of 4 checks3/4GPT-6 Luna: 3 of 4 checks1.5/4Grok 4.7: 1.5 of 4 checks2.5/4Qwen3.8 Max (0902): 2.5 of 4 checks3/4Gemini 3.8 Flash: 3 of 4 checks
Ball bouncing in a spinning hexagon 3/3Claude Opus 5.5: 3 of 3 checks, our pick3/3GPT-6.1 Sol: 3 of 3 checks3/3Kimi K3: 3 of 3 checks3/3Claude Fable 5.1: 3 of 3 checks3/3Muse Spark 1.3: 3 of 3 checks3/3DeepSeek V4.1 Flash: 3 of 3 checks3/3Mistral Large 4: 3 of 3 checks3/3Claude Haiku 5.5: 3 of 3 checks3/3GPT-6 Luna: 3 of 3 checks3/3Grok 4.7: 3 of 3 checks3/3Qwen3.8 Max (0902): 3 of 3 checks2.5/3Gemini 3.8 Flash: 2.5 of 3 checks
The solar system, to scale in time 3/3Claude Opus 5.5: 3 of 3 checks, our pick3/3GPT-6.1 Sol: 3 of 3 checks3/3Kimi K3: 3 of 3 checks3/3Claude Fable 5.1: 3 of 3 checks3/3Muse Spark 1.3: 3 of 3 checks3/3DeepSeek V4.1 Flash: 3 of 3 checks3/3Mistral Large 4: 3 of 3 checks3/3Claude Haiku 5.5: 3 of 3 checks3/3GPT-6 Luna: 3 of 3 checks3/3Grok 4.7: 3 of 3 checks3/3Qwen3.8 Max (0902): 3 of 3 checks3/3Gemini 3.8 Flash: 3 of 3 checks
A product page from one feed row 5/5Claude Opus 5.5: 5 of 5 checks, our pick5/5GPT-6.1 Sol: 5 of 5 checks5/5Kimi K3: 5 of 5 checks5/5Claude Fable 5.1: 5 of 5 checks5/5Muse Spark 1.3: 5 of 5 checks5/5DeepSeek V4.1 Flash: 5 of 5 checks4/5Mistral Large 4: 4 of 5 checks5/5Claude Haiku 5.5: 5 of 5 checks5/5GPT-6 Luna: 5 of 5 checks4.5/5Grok 4.7: 4.5 of 5 checks5/5Qwen3.8 Max (0902): 5 of 5 checks5/5Gemini 3.8 Flash: 5 of 5 checks
A pricing table with a monthly/yearly switch 4/4Claude Opus 5.5: 4 of 4 checks4/4GPT-6.1 Sol: 4 of 4 checks4/4Kimi K3: 4 of 4 checks, our pick4/4Claude Fable 5.1: 4 of 4 checks4/4Muse Spark 1.3: 4 of 4 checks4/4DeepSeek V4.1 Flash: 4 of 4 checks3.5/4Mistral Large 4: 3.5 of 4 checks4/4Claude Haiku 5.5: 4 of 4 checks3.5/4GPT-6 Luna: 3.5 of 4 checks4/4Grok 4.7: 4 of 4 checks3/4Qwen3.8 Max (0902): 3 of 4 checks4/4Gemini 3.8 Flash: 4 of 4 checks
Pelican riding a bicycle 3/3Claude Opus 5.5: 3 of 3 checks3/3GPT-6.1 Sol: 3 of 3 checks, our pick3/3Kimi K3: 3 of 3 checks3/3Claude Fable 5.1: 3 of 3 checks3/3Muse Spark 1.3: 3 of 3 checks2/3DeepSeek V4.1 Flash: 2 of 3 checks3/3Mistral Large 4: 3 of 3 checks2/3Claude Haiku 5.5: 2 of 3 checks2.5/3GPT-6 Luna: 2.5 of 3 checks2/3Grok 4.7: 2 of 3 checks3/3Qwen3.8 Max (0902): 3 of 3 checks2.5/3Gemini 3.8 Flash: 2.5 of 3 checks
Newton's cradle 3/3Claude Opus 5.5: 3 of 3 checks, our pick2.5/3GPT-6.1 Sol: 2.5 of 3 checks3/3Kimi K3: 3 of 3 checks3/3Claude Fable 5.1: 3 of 3 checks3/3Muse Spark 1.3: 3 of 3 checks3/3DeepSeek V4.1 Flash: 3 of 3 checks2.5/3Mistral Large 4: 2.5 of 3 checks1/3Claude Haiku 5.5: 1 of 3 checks3/3GPT-6 Luna: 3 of 3 checks3/3Grok 4.7: 3 of 3 checks3/3Qwen3.8 Max (0902): 3 of 3 checks3/3Gemini 3.8 Flash: 3 of 3 checks
A newsletter email that works in email 4.5/5Claude Opus 5.5: 4.5 of 5 checks4.5/5GPT-6.1 Sol: 4.5 of 5 checks, our pick4/5Kimi K3: 4 of 5 checks4/5Claude Fable 5.1: 4 of 5 checks3.5/5Muse Spark 1.3: 3.5 of 5 checks4/5DeepSeek V4.1 Flash: 4 of 5 checks4/5Mistral Large 4: 4 of 5 checks4/5Claude Haiku 5.5: 4 of 5 checks4.5/5GPT-6 Luna: 4.5 of 5 checks4/5Grok 4.7: 4 of 5 checks3.5/5Qwen3.8 Max (0902): 3.5 of 5 checks3.5/5Gemini 3.8 Flash: 3.5 of 5 checks
A landing page for a photo-book app 2.5/3Claude Opus 5.5: 2.5 of 3 checks2.5/3GPT-6.1 Sol: 2.5 of 3 checks3/3Kimi K3: 3 of 3 checks2/3Claude Fable 5.1: 2 of 3 checks2/3Muse Spark 1.3: 2 of 3 checks2/3DeepSeek V4.1 Flash: 2 of 3 checks3/3Mistral Large 4: 3 of 3 checks2.5/3Claude Haiku 5.5: 2.5 of 3 checks2.5/3GPT-6 Luna: 2.5 of 3 checks3/3Grok 4.7: 3 of 3 checks, our pick2/3Qwen3.8 Max (0902): 2 of 3 checks3/3Gemini 3.8 Flash: 3 of 3 checks
The jelly effect 3/3Claude Opus 5.5: 3 of 3 checks, our pick3/3GPT-6.1 Sol: 3 of 3 checks2.5/3Kimi K3: 2.5 of 3 checks3/3Claude Fable 5.1: 3 of 3 checks2/3Muse Spark 1.3: 2 of 3 checks2.5/3DeepSeek V4.1 Flash: 2.5 of 3 checks3/3Mistral Large 4: 3 of 3 checks1/3Claude Haiku 5.5: 1 of 3 checks2.5/3GPT-6 Luna: 2.5 of 3 checks3/3Grok 4.7: 3 of 3 checks3/3Qwen3.8 Max (0902): 3 of 3 checks1/3Gemini 3.8 Flash: 1 of 3 checks
Conway's Game of Life 4/4Claude Opus 5.5: 4 of 4 checks, our pick4/4GPT-6.1 Sol: 4 of 4 checks4/4Kimi K3: 4 of 4 checks4/4Claude Fable 5.1: 4 of 4 checks3.5/4Muse Spark 1.3: 3.5 of 4 checks4/4DeepSeek V4.1 Flash: 4 of 4 checks3/4Mistral Large 4: 3 of 4 checks4/4Claude Haiku 5.5: 4 of 4 checks3.5/4GPT-6 Luna: 3.5 of 4 checks4/4Grok 4.7: 4 of 4 checks3.5/4Qwen3.8 Max (0902): 3.5 of 4 checks4/4Gemini 3.8 Flash: 4 of 4 checks
Flappy Bird in one file 4/4Claude Opus 5.5: 4 of 4 checks4/4GPT-6.1 Sol: 4 of 4 checks, our pick4/4Kimi K3: 4 of 4 checks4/4Claude Fable 5.1: 4 of 4 checks4/4Muse Spark 1.3: 4 of 4 checks4/4DeepSeek V4.1 Flash: 4 of 4 checks4/4Mistral Large 4: 4 of 4 checks4/4Claude Haiku 5.5: 4 of 4 checks4/4GPT-6 Luna: 4 of 4 checks4/4Grok 4.7: 4 of 4 checks4/4Qwen3.8 Max (0902): 4 of 4 checks4/4Gemini 3.8 Flash: 4 of 4 checks
Chess with every rule 5/5Claude Opus 5.5: 5 of 5 checks5/5GPT-6.1 Sol: 5 of 5 checks, our pick5/5Kimi K3: 5 of 5 checks5/5Claude Fable 5.1: 5 of 5 checks5/5Muse Spark 1.3: 5 of 5 checks5/5DeepSeek V4.1 Flash: 5 of 5 checks5/5Mistral Large 4: 5 of 5 checks5/5Claude Haiku 5.5: 5 of 5 checks5/5GPT-6 Luna: 5 of 5 checks5/5Grok 4.7: 5 of 5 checks5/5Qwen3.8 Max (0902): 5 of 5 checks0/5Gemini 3.8 Flash: 0 of 5 checks
A category page from a product feed 4/4Claude Opus 5.5: 4 of 4 checks, our pick4/4GPT-6.1 Sol: 4 of 4 checks3.5/4Kimi K3: 3.5 of 4 checks3.5/4Claude Fable 5.1: 3.5 of 4 checks3/4Muse Spark 1.3: 3 of 4 checks4/4DeepSeek V4.1 Flash: 4 of 4 checks3/4Mistral Large 4: 3 of 4 checks4/4Claude Haiku 5.5: 4 of 4 checks4/4GPT-6 Luna: 4 of 4 checks0/4Grok 4.7: 0 of 4 checks3/4Qwen3.8 Max (0902): 3 of 4 checks3/4Gemini 3.8 Flash: 3 of 4 checks
An animated SVG logo 4/4Claude Opus 5.5: 4 of 4 checks4/4GPT-6.1 Sol: 4 of 4 checks4/4Kimi K3: 4 of 4 checks4/4Claude Fable 5.1: 4 of 4 checks, our pick4/4Muse Spark 1.3: 4 of 4 checks4/4DeepSeek V4.1 Flash: 4 of 4 checks4/4Mistral Large 4: 4 of 4 checks4/4Claude Haiku 5.5: 4 of 4 checks4/4GPT-6 Luna: 4 of 4 checks4/4Grok 4.7: 4 of 4 checks4/4Qwen3.8 Max (0902): 4 of 4 checks3.5/4Gemini 3.8 Flash: 3.5 of 4 checks
An analogue clock that tells the time 4/4Claude Opus 5.5: 4 of 4 checks4/4GPT-6.1 Sol: 4 of 4 checks, our pick4/4Kimi K3: 4 of 4 checks4/4Claude Fable 5.1: 4 of 4 checks4/4Muse Spark 1.3: 4 of 4 checks4/4DeepSeek V4.1 Flash: 4 of 4 checks3/4Mistral Large 4: 3 of 4 checks4/4Claude Haiku 5.5: 4 of 4 checks2/4GPT-6 Luna: 2 of 4 checks3.5/4Grok 4.7: 3.5 of 4 checks3.5/4Qwen3.8 Max (0902): 3.5 of 4 checks3.5/4Gemini 3.8 Flash: 3.5 of 4 checks