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Fable with low reasoning is roughly comparable to GPT-5.5 medium on the 20 puzzles they both solved. Fable scored higher in 14 of those, and I think Warming Tonic illustrates how different quality alchemical machines look. Solve rate isn't everything, quality is important!

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Rob Haisfield

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40,958 views • 19 days ago •via X (Twitter)

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Fable 5 vs GPT 5.5 tested both on High settings with the same prompt > Fable one shotted everything in 15 minutes and used 3% of weekly limits > GPT 5.5 took 20 minutes and used 3% of weekly limits 5.5 is not looking good here at all which one do you think won?
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Fable 5 vs GPT 5.5 tested both on High settings with the same prompt > Fable one shotted everything in 15 minutes and used 3% of weekly limits > GPT 5.5 took 20 minutes and used 3% of weekly limits 5.5 is not looking good here at all which one do you think won?

J A Z I I

104,994 views • 29 days ago

I compared Claude Fable 5 to GPT-5.5 in this Power Rangers prompt Thing is, Fable 5 is using Low thinking effort and GPT-5.5 is using xhigh Safe to say, the results are... not even close. 5.5's output is bad across the board, from the UI to the actual voxel scene itself🥲 1st video: Claude Fable 5 (Low effort) 2nd video: GPT-5.5 (xhigh)
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I compared Claude Fable 5 to GPT-5.5 in this Power Rangers prompt Thing is, Fable 5 is using Low thinking effort and GPT-5.5 is using xhigh Safe to say, the results are... not even close. 5.5's output is bad across the board, from the UI to the actual voxel scene itself🥲 1st video: Claude Fable 5 (Low effort) 2nd video: GPT-5.5 (xhigh)

Lentils

207,097 views • 29 days ago

Opus 4.8 for planning 🤝 GPT 5.5 for implementation Claude is a nicer conversation and /grilling partner than Codex in my experience, but GPT 5.5 on low cranks out higher quality code in fewer tokens. Here's how I divide up the work:
1:20

Opus 4.8 for planning 🤝 GPT 5.5 for implementation Claude is a nicer conversation and /grilling partner than Codex in my experience, but GPT 5.5 on low cranks out higher quality code in fewer tokens. Here's how I divide up the work:

Ben Holmes

23,010 views • 1 month ago

Claude Fable 5 on left vs GPT 5.5 on right. Both one shot. Fable 5 is truly a big jump in CAD capabilities as seen in ForgeCAD.
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Claude Fable 5 on left vs GPT 5.5 on right. Both one shot. Fable 5 is truly a big jump in CAD capabilities as seen in ForgeCAD.

Ruben Kostandyan

31,670 views • 28 days ago

GPT-5.6 vs GPT-5.5 on my custom spaceship prompt. I gave both models the exact same custom prompt. This is also the same prompt I previously gave to Fable 5. For context, GPT-5.6 Pro worked for 87 minutes, while GPT-5.5 Extra High worked for 34 minutes and 42 seconds. As I’ve said before, based on great authority GPT-5.6 will be an incremental/soldi improvement over GPT-5.5, not a “Fable killer.” My rough expectation has been that it would trade blows with Fable 5 on some benchmarks, maybe win around half depending on the category, but not clearly surpass it overall. And again fable five will have bigger model smell, but this was expected. After testing this coding output, that view feels pretty accurate. GPT-5.6 is clearly better than GPT-5.5 in several visual areas. The lighting, shading, chairs, object details, and exterior of the spaceship looked noticeably stronger. The scene was also easier to test. I do want to give GPT-5.5 credit though. It built out the rooms much much better and the planets looked better than GPT-5.6’s. It was also interesting that both GPT-5.5 and GPT-5.6 produced better-looking planets than Fable 5 in this specific test. The downside with GPT-5.5 was stability. The game was much glitchier and harder to test compared to GPT-5.6. But when it comes to the core of the demo, which is the spaceship itself, Fable 5 still beat both models pretty comfortably. GPT-5.6 is impressive, but from this test, it looks exactly like what I expected which was a meaningful incremental improvement over GPT-5.5, at least for indie game demos, but not something that replaces Fable 5. In collaboration with Chetaslua
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GPT-5.6 vs GPT-5.5 on my custom spaceship prompt. I gave both models the exact same custom prompt. This is also the same prompt I previously gave to Fable 5. For context, GPT-5.6 Pro worked for 87 minutes, while GPT-5.5 Extra High worked for 34 minutes and 42 seconds. As I’ve said before, based on great authority GPT-5.6 will be an incremental/soldi improvement over GPT-5.5, not a “Fable killer.” My rough expectation has been that it would trade blows with Fable 5 on some benchmarks, maybe win around half depending on the category, but not clearly surpass it overall. And again fable five will have bigger model smell, but this was expected. After testing this coding output, that view feels pretty accurate. GPT-5.6 is clearly better than GPT-5.5 in several visual areas. The lighting, shading, chairs, object details, and exterior of the spaceship looked noticeably stronger. The scene was also easier to test. I do want to give GPT-5.5 credit though. It built out the rooms much much better and the planets looked better than GPT-5.6’s. It was also interesting that both GPT-5.5 and GPT-5.6 produced better-looking planets than Fable 5 in this specific test. The downside with GPT-5.5 was stability. The game was much glitchier and harder to test compared to GPT-5.6. But when it comes to the core of the demo, which is the spaceship itself, Fable 5 still beat both models pretty comfortably. GPT-5.6 is impressive, but from this test, it looks exactly like what I expected which was a meaningful incremental improvement over GPT-5.5, at least for indie game demos, but not something that replaces Fable 5. In collaboration with Chetaslua

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228,126 views • 20 days ago

The model is faster, the pelican isn't as good! GPT-5.3 Codex Spark on the left, GPT-5.3 Codex 5.3 on the right - both at medium quality settings
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The model is faster, the pelican isn't as good! GPT-5.3 Codex Spark on the left, GPT-5.3 Codex 5.3 on the right - both at medium quality settings

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57,440 views • 4 months ago

Claude fable 5 is operating in a completely different dimension 🤯 Compared it with Claude Opus 4.8, Gemini 3.1 Pro, and GPT 5.5, the visual gap is insane. From 3D fluid dynamics to volumetric animation and complex physics, Fable 5 crushes the game. It’s not even close.
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Claude fable 5 is operating in a completely different dimension 🤯 Compared it with Claude Opus 4.8, Gemini 3.1 Pro, and GPT 5.5, the visual gap is insane. From 3D fluid dynamics to volumetric animation and complex physics, Fable 5 crushes the game. It’s not even close.

GMI Cloud

319,114 views • 29 days ago

omg hahah look what Claude Fable made! level devil but fable devil (medium reasoning effort oneshot) if you wanna play, here!
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omg hahah look what Claude Fable made! level devil but fable devil (medium reasoning effort oneshot) if you wanna play, here!

Leon Lin

42,758 views • 29 days ago

Anthropic just released 3 workshops on how to actually use Fable 5 to its full potential: 00:00 - Full guide to Fable 5 19:02 - How Anthropic uses Fable 5 internally 44:46 - How to build effective agents with Fable those 3 stages replaced 20 articles on Fable 5 for me. give it 1-hour today and read how to build self-improving agents with Fable 5 in the article below.
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Anthropic just released 3 workshops on how to actually use Fable 5 to its full potential: 00:00 - Full guide to Fable 5 19:02 - How Anthropic uses Fable 5 internally 44:46 - How to build effective agents with Fable those 3 stages replaced 20 articles on Fable 5 for me. give it 1-hour today and read how to build self-improving agents with Fable 5 in the article below.

Codez

50,268 views • 3 days ago

Use Fable + GPT-5.5 for peak performance and lowest quota usage.
17:12

Use Fable + GPT-5.5 for peak performance and lowest quota usage.

Matthew Berman

177,497 views • 1 day ago

#MortalKombat1 #tomasvrbada × #bihan sorry for the low quality of the image, render time is killing me. i might replace it with higher quality version later, right now i just want to get rid of this scene then trying to make some different stuff
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#MortalKombat1 #tomasvrbada × #bihan sorry for the low quality of the image, render time is killing me. i might replace it with higher quality version later, right now i just want to get rid of this scene then trying to make some different stuff

小敗

14,892 views • 2 years ago

Anthropic just dropped 5 workshops, revealing the latest capabilities of Fable 5: • 00:00 - deep look into Fable 5 • 11:22 - Fable 5 and the capability curve • 30:54 - building managed agents with Fable 5 • 44:29 - real use cases of Fable 5 by teams • 57:43 - how to deploy agents with Fable 5 These 1-hour of sessions will replace 100 articles on how to actually use Fable 5. Watch them today, then read the best practices from the sessions in the article below.
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Anthropic just dropped 5 workshops, revealing the latest capabilities of Fable 5: • 00:00 - deep look into Fable 5 • 11:22 - Fable 5 and the capability curve • 30:54 - building managed agents with Fable 5 • 44:29 - real use cases of Fable 5 by teams • 57:43 - how to deploy agents with Fable 5 These 1-hour of sessions will replace 100 articles on how to actually use Fable 5. Watch them today, then read the best practices from the sessions in the article below.

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Oneshot with Fable on MAX reasoning
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Oneshot with Fable on MAX reasoning

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135,712 views • 29 days ago

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Dan McAteer

136,254 views • 19 hours ago

I ran the same prompt through Fable (in CC) at different reasoning levels, low effort too 12 minutes, max effort took nearly 2 hours. Prompt and the hosted version of this video below
0:55

I ran the same prompt through Fable (in CC) at different reasoning levels, low effort too 12 minutes, max effort took nearly 2 hours. Prompt and the hosted version of this video below

Peter Gostev

70,812 views • 4 days ago

This is the best way to use Claude Fable in Claude Code without immediately hitting your limits. 1. Model set to Fable 5 2. Reasoning on Max 3. Instruct Claude to run a dynamic workflow where: 3a. Fable is the orchestrator 3b. Opus does the reasoning heavy phases Fable is so overpowered that you don't need its intelligence for every step. Let it orchestrate Opus or even Sonnet.
0:24

This is the best way to use Claude Fable in Claude Code without immediately hitting your limits. 1. Model set to Fable 5 2. Reasoning on Max 3. Instruct Claude to run a dynamic workflow where: 3a. Fable is the orchestrator 3b. Opus does the reasoning heavy phases Fable is so overpowered that you don't need its intelligence for every step. Let it orchestrate Opus or even Sonnet.

Dan McAteer

886,080 views • 28 days ago

Got an output from the strongest pre-release Gemini 3.5 Pro checkpoint 👀 I compared it to Claude Fable 5 and GPT-5.5 on the same exact prompt Yeah... This model is mostly dead on arrival (tried it on other prompts too ofc). It will likely be the "poor man's model" next to 3.5 flash. 1st video: Gemini 3.5 Pro (pre-release) 2nd video: GPT-5.5 3rd video: Claude Fable 5
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Got an output from the strongest pre-release Gemini 3.5 Pro checkpoint 👀 I compared it to Claude Fable 5 and GPT-5.5 on the same exact prompt Yeah... This model is mostly dead on arrival (tried it on other prompts too ofc). It will likely be the "poor man's model" next to 3.5 flash. 1st video: Gemini 3.5 Pro (pre-release) 2nd video: GPT-5.5 3rd video: Claude Fable 5

Lentils

50,395 views • 29 days ago

First Fable (Mythos) test (on cowork). Uploaded a McKinsey Report and told it to create a doc of the same quality...
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First Fable (Mythos) test (on cowork). Uploaded a McKinsey Report and told it to create a doc of the same quality...

Riley Brown

784,023 views • 29 days ago

OpenAI researcher, Michelle Pokrass: the challenge in building GPT‑5 is finding the right balance between reasoning and conversation. o3 thinks hard, but it isn't ideal for casual chat. GPT‑4.1 improved at coding by sacrificing some chit-chat quality. now, the goal is to train a model that knows when to think hard and when to talk
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OpenAI researcher, Michelle Pokrass: the challenge in building GPT‑5 is finding the right balance between reasoning and conversation. o3 thinks hard, but it isn't ideal for casual chat. GPT‑4.1 improved at coding by sacrificing some chit-chat quality. now, the goal is to train a model that knows when to think hard and when to talk

Haider.

195,733 views • 1 year ago

Head of Anthropic Labs: "Fable is one of those models you'll just remember - like Sonnet 3.5, Opus 4, Opus 4.5. Fable is way smarter than me. It finishes a task, lists its trade-offs, and I have to ask it to explain them to me." in 20-minute talk, the Anthropic head reveals the full capabilities of the Fable 5 model in practice. Watch it now, then read how to use this frontier model in the article below
25:40

Head of Anthropic Labs: "Fable is one of those models you'll just remember - like Sonnet 3.5, Opus 4, Opus 4.5. Fable is way smarter than me. It finishes a task, lists its trade-offs, and I have to ask it to explain them to me." in 20-minute talk, the Anthropic head reveals the full capabilities of the Fable 5 model in practice. Watch it now, then read how to use this frontier model in the article below

Movez

33,774 views • 5 days ago