Video summary
Kimi K3 vs Fable 5 vs. GPT 5.6 (Raw Results)
Main summary
Key takeaways
Product(s) compared
- Kimmy K3 (open-source model; Algretto “$39/month plan” mentioned)
- Fable 5 (frontier model for heavy 3D)
- GBT 56 / “56 Soul” (another frontier model)
The video is a structured benchmark-style comparison of how well each model generates WebGPU/3JS real-time 3D worlds, scroll-driven websites, and playable games—plus “everyday” tasks like landing pages and brand refreshes—using closely matched prompts.
Key test results (what the reviewer saw)
1) Real-time 3D “Odysseus whirlpool” scene (ocean + whirlpool)
Setup
- Same core prompt across all models; added complexity (whirlpool scene, ocean spectrum terms, foam/optics, etc.)
- “/goal” used to force models to complete objectives.
Generation time
- Soul: ~40 min
- Fable: ~2h 24m
- Kimmy: ~3h
Output / UX observations
Soul
- Pros
- Graphics look “pretty good,” good lighting
- Boat movement feels realistic
- Has controls (whirlpool strength, sea state, time of day)
- Cons
- Whirlpools interaction isn’t great: entering often results in “floating in a circle” with limited steering
- Grabbing/interaction feels non-functional
- Time-of-day change feels weak (mostly darkens/lights rather than realistic “golden sun”)
Fable
- Pros
- Much more like the reviewer’s intended whirlpool feel
- Strong reflections
- Characters look more realistic
- Lots of visual controls (SSR/AO/DOF/etc.)
- Adds cinematic camera behaviors
- Cons
- Some artifacts/glitches
- Waves can look “funky” or glitchy
- Boat/rowing behavior can be glitchy
- Sometimes objects/artifacts appear as dots
- Time-of-day (“golden hour”) is improved vs Soul (less just exposure-only).
Kimmy
- Pros
- Fewer artifacts than Fable
- Physics/boat movement feels less glitchy
- Waves look more natural
- Controls are decent
- Cons
- Follow-camera behavior can be “funky”
- Camera/cinematic modes feel odd
- Missing some Odyssey passage detail
- Whirlpool interaction is closer than Soul but still not exactly as pictured
- Water quality: reflections can be weaker than Fable
Verdict for this test
- Fable: best overall fidelity and closest whirlpool behavior (but glitchier)
- Kimmy: best “less glitchy / closer-than-Soul” option
- Soul: visually solid, but interaction/game feel is weakest
Cost notes (whirlpool build)
- Kimmy K3: 187M input / 515K output; $66 without subscription, $39/month plan mentioned
- Fable 5: $263 total (167M input / 423K output; similar workload/time)
- Soul (56): $23 total
Reviewer conclusion: Kimmy is far cheaper than Fable for similar quality; Soul is cheapest but lower interaction fidelity.
2) Scroll-driven “IMAX camera” website (3D site scrollytelling + viewfinder scene request)
Generation time
- Soul: ~40 min
- Fable: ~2.5 hours
- Kimmy: ~3+ hours
Runtime/technical issues
- Soul initially errored (“camera could not be initialized” / WebGL mention), but worked after redeploy.
Output / UX observations
Soul
- Pros
- Smooth scroll; “taking apart” camera parts works and looks like real 3D camera
- Teaching-like visualization
- Cons
- Parts sometimes “disappear” or behave oddly
- Viewfinder scene didn’t really land
- UI/stat overlays appeared weird
Fable
- Pros
- Best overall execution: film grain, bloom around highlights, chromatic aberration
- Strong cinematic feel
- Lens textures and lighting look most realistic
- Better “focus” and storytelling execution
- Good teaching visualization
- Cons
- Rotation/control is annoying or unintuitive
- Some transitions are funky
- Highlights don’t perfectly match every expected element
Kimmy
- Pros
- Better than Soul in realism
- Good camera texture, film grain, film strip concept, bloom
- Fewer artifacts than Fable and Soul in this test
- Cons
- Lens placement position problem (“big ding”)
- Focus controls / scene end didn’t work as expected
- Some box/camera transitions are awkward
- Camera viewing angle is sometimes weird
Verdict for this test
- Fable wins on realism and polish (most cinematic, most “crushed” details)
- Kimmy is surprisingly close and more usable than Soul, but with notable placement/focus issues
- Soul is less reliable and less accurate to the intended outcome
Cost notes (scrolling website build)
- Kimmy K3: $48
- Fable 5: $238
- Soul: reviewer notes it “should be much lower,” but it’s stated incorrectly once; later context implies Soul is far cheaper than Fable and Kimmy overall in this category.
Reviewer takeaway: Fable is marginally better output at much higher cost; Kimmy offers best value for “almost-Fable” results.
3) Playable WebGPU game: Odysseus’s Escape from the cave (Cyclops + phases)
Generation time
- Kimmy: ~57 min
- Fable: ~40+ min
- Soul: ~35 min
Despite time differences, the reviewer emphasizes they’re still long tasks.
Output / gameplay observations (overall)
The reviewer says the prompt is extremely complex and models struggle with full “playability” and correct interaction logic.
Soul
- Pros
- Playable-ish attempt with stake/heat/aim/thrust-ish controls
- Some sense of phase objectives
- Cons
- Interaction is glitchy/unclear (difficulty determining win/lose)
- Controls don’t always respond as expected
- Camera/positioning issues
- Behavior becomes nonsensical
Fable
- Pros
- Arrow firing physics seemed better than Soul
- Some passage from Odyssey appears
- Cons
- Cyclops/cave scale/quality issues
- Missing control prompts
- Awkward transitions
- “Playable” experience fails: cannot interact correctly and objective logic doesn’t make sense
Kimmy
- Pros
- Cyclops transition/phase moments (at least stake-heating and firing) feel coherent
- Cons
- 3D work not good enough
- Random rams
- Hand motion / weird controls
- Unclear objective completion
Verdict
- Main point: Fable is still the “3D king,” but all models fall short of fully convincing, robust playability for this extreme prompt.
- Reviewer frames it as a “stumping” prompt; gameplay interaction logic is where they fail.
Cost notes (game build)
- Kimmy: $24
- Fable: $111
- Soul: $12
The reviewer notes the cost advantage persists even if output quality is closer in other tests.
“Everyday tasks” lightning round
4) Award-winning single-page landing site (3 distinct concepts)
Prompt emphasis
- Creative freedom, plus “anti-slop” guardrails:
- No purple/blue gradients
- No glass morphism
- No stock hero
- Reviewer notes the first concept had a “cream background” resembling a known “GPT-56 Soul giveaway” (suggesting model tendencies).
Result ranking
- Fable 5 (best overall concept/design)
- Soul (56)
- Kimmy K3
Reviewer notes Fable’s static site concept quality is better here, but models can produce repetitive or nonsensical filler (e.g., “superolous writing” / astronomy-style lines).
Cost notes (landing page test)
- Fable 5: $41 (fast: ~18 min)
- Kimmy K3: $2.75 (cheapest; ~23 min)
- Soul: $3.22 (still cheap; ~14 min)
Value takeaway
- Fable wins quality, but Kimmy/Soul are dramatically cheaper and “good enough” for many use-cases.
5) Reviving a dead brand: RadioShack brand revitalization (HTML deck + brand identity + mockups)
Output components required
- Word mark (SVG), color palette, typography, tagline
- Brand story/tone
- Pitch deck slides
- Image generation for mockups
Pros/cons observed
Kimmy vs others (overall)
- Reviewer says results are close when tasks aren’t as extreme.
- Fable appears stronger for conceptual deck execution and polish in some areas.
- Occasional “dumb logo”/mismatch issues and missing/incorrect assets in mockups were flagged.
Ranking
- Fable 5
- Soul (56)
- Kimmy K3
Still, the reviewer emphasizes: for realistic brand tasks, all three can get quite close—differences are often polish and cost.
Cost notes (brand task)
Relative cost examples provided:
- Kimmy: ~$1.72
- Fable: ~$11.94
- Soul: ~$2.82
The reviewer argues Kimmy becomes extremely attractive for “everyday” work that isn’t heavy 3D.
Overall pros & cons (by product)
Kimmy K3
Pros
- Frequently closer-than-Soul to frontier quality on 3D visuals (especially whirlpool + scroll site)
- Often fewer artifacts/glitches than Fable
- Strong value: far cheaper than Fable; sometimes close to Soul
- Works well as a daily-driver for websites and brand creation
Cons
- Scroll site: notable lens placement positioning issues; some focus/scene completion problems
- Whirlpool: camera/follow controls can be “funky,” and Odyssey details can be missing
- Game test: still fails on key gameplay/interaction robustness
Fable 5
Pros
- Best cinematic realism and execution (especially scroll-driven IMAX camera)
- Best overall heavy 3D results (reviewer calls it “king” of complex long-running 3D)
- Tends to produce the most impressive polished visuals and control-rich experiences
Cons
- Very high cost (often described as ~4x or more than Kimmy in similar workloads)
- More artifacts/glitches in some real-time 3D tasks
- Still fails to deliver fully robust playability in the extreme game prompt
Soul / GBT 56
Pros
- Often fastest to complete (e.g., whirlpool build ~40 min)
- Very cheap compared with Fable; can be competitive on simpler tasks
- Some 3D behaviors look solid; learning/teaching visualization is a highlight
Cons
- Interaction/gameplay is weakest in the whirlpool test (e.g., stuck/floating)
- Scroll site: initial camera initialization failure; intended end scene sometimes doesn’t show
- Generally less polished than Fable; less reliable for realism/controls
Comparisons emphasized by the reviewer
-
Core theme: quality vs cost tradeoff
- Fable: best quality for heavy 3D, but “insane” cost
- Kimmy: surprisingly close output for far less cost; best on “everyday” work
- Soul: cheapest; sometimes “good enough,” but less consistent and weaker on interactions/realism
-
Workflow strategy
- Use Fable for very complex, long-running heavy 3D
- Use Soul for mid-complexity tasks (often cheaper)
- Use Kimmy as the default daily driver for most work
Unique points mentioned (consolidated list)
- Kimmy K3 benchmarks claim impressive performance.
- Testing used same prompts across models; multiple build types (3D world, scroll site, playable game).
- Confusion about switching Kimmy to “max thinking effort” requiring a config-file change.
- Prompt complexity engineered via an external agent (Claude) with 3D/WebGPU terms.
- Use of /goal to force completion; Claude Code goal length limits discussed (4,000 chars vs 11,000 prompt).
- Deployment to Vercel for live links.
- Notes about localhost vs live-host observations (deployment step recorded; performance behavior not deeply emphasized).
- Whirlpool interaction differences:
- Soul: “stuck floating”
- Fable: more intended spin/entry
- Kimmy: closer but still imperfect
- Controls included whirlpool strength, sea state, time of day, camera modes, and rendering toggles (SSR/AO/DOF/camera shake).
- Time-of-day realism differences: - Soul: mostly darkens/lights - Fable: can create “golden hour”
- Artifact/glitch discussions: - dots - weird wave artifacts - blotchy discoloration - glitchy rowing
- Fable’s reflections and cinematic effects (grain, bloom, chromatic aberration) repeatedly praised.
- Kimmy’s film grain and bloom praised, but lens placement and focus behavior flagged.
- Game prompt described as “stumping”; gameplay interaction logic often fails.
- Cost breakdowns presented per build, including Kimmy subscription vs non-subscription.
- Landing page test: “cream background” noted as a likely 56/Soul tendency.
- Landing page cost: Kimmy cheapest; Fable still highest quality.
- Brand refresh test requirements: word mark SVG, brand assets, deck slides, and mockups via image generation.
- Brand refresh ranking: Fable best, Soul second, Kimmy third—yet Kimmy is very cheap for comparable output.
- Final recommendation: use open-source Kimmy for most tasks; reserve frontier/high-cost models for the most complex 3D.
Speaker perspectives
- Single primary reviewer dominates all observations and rankings (no distinct multi-speaker viewpoints clearly separated in subtitles).
Concise verdict / recommendation
- Need the best cinematic/advanced 3D (especially scroll-driven 3D storytelling)? Choose Fable 5, but expect much higher cost.
- Want near-frontier quality at a fraction of the price and best value for everyday creative work? Choose Kimmy K3 (the reviewer’s main daily-driver recommendation).
- Want the cheapest option and can tolerate less consistent interaction/finish? Soul (56) is a valid budget alternative, but it often underperforms on interaction realism and polish.