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fable 5 is so nerfed. sometimes it feels like anthropic shipped the max version of opus 4.8. anthropic owes us an explanation.

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Ninza

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154,128 views • 4 months ago •via X (Twitter)

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BREAKING: 🇺🇸 ANTHROPIC SUSPENDS GLOBAL ACCESS TO MYTHOS FABLE 5. The US government just ordered Anthropic to suspend foreign access to Mythos Fable 5 AI model. Anthropic has now disabled access for all users worldwide.
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BREAKING: 🇺🇸 ANTHROPIC SUSPENDS GLOBAL ACCESS TO MYTHOS FABLE 5. The US government just ordered Anthropic to suspend foreign access to Mythos Fable 5 AI model. Anthropic has now disabled access for all users worldwide.

Crypto Rover

102,863 views • 4 months ago

Anthropic release Fable 5 into the world
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Anthropic release Fable 5 into the world

Jaydeep

8,740,047 views • 4 months ago

🚨 JUST IN: THE US GOVERNMENT JUST SHUT DOWN CLAUDE FABLE 5 FOR THE ENTIRE WORLD > a national security export control directive. effective immediately > every foreign national on earth - including Anthropic's own engineers who built the model - is now locked out > Fable 5 launched 4 days ago > it's already being classified like a weapons system > Anthropic says it's a misunderstanding > the order doesn't care > Opus 4.8 still runs. Fable 5 and Mythos 5 are gone until further notice AI just got its first export control. it won't be the last
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🚨 JUST IN: THE US GOVERNMENT JUST SHUT DOWN CLAUDE FABLE 5 FOR THE ENTIRE WORLD > a national security export control directive. effective immediately > every foreign national on earth - including Anthropic's own engineers who built the model - is now locked out > Fable 5 launched 4 days ago > it's already being classified like a weapons system > Anthropic says it's a misunderstanding > the order doesn't care > Opus 4.8 still runs. Fable 5 and Mythos 5 are gone until further notice AI just got its first export control. it won't be the last

Mr. Buzzoni

51,523 views • 4 months ago

Anthropic just shipped Claude Opus 5. It's state of the art for coding, close to Claude Fable 5. So we re-ran our landing page study: >10 client briefs, >4 models, >10 expert designers, >600 blind comparisons, >400 write ups. TLDR: designers liked its words more than its pages. more in the 🧵
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Anthropic just shipped Claude Opus 5. It's state of the art for coding, close to Claude Fable 5. So we re-ran our landing page study: >10 client briefs, >4 models, >10 expert designers, >600 blind comparisons, >400 write ups. TLDR: designers liked its words more than its pages. more in the 🧵

ben

14,210 views • 3 months ago

Anthropic Chinese teams that already distilled Fable 5.
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Anthropic Chinese teams that already distilled Fable 5.

Owen Carey

202,278 views • 4 months ago

FABLE 5 JUST RECREATED NEW YORK CITY IN BLENDER. I connected Blender to Fable 5 and in like 20 minutes, it remade the entire cityscape of NYC It started by getting data of the buildings from public sources, THEN began building it (imo this is a smarter move than what Opus 4.8 would've done) So theoretically, this entire build is up to scale too Fable 5, welcome back.
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FABLE 5 JUST RECREATED NEW YORK CITY IN BLENDER. I connected Blender to Fable 5 and in like 20 minutes, it remade the entire cityscape of NYC It started by getting data of the buildings from public sources, THEN began building it (imo this is a smarter move than what Opus 4.8 would've done) So theoretically, this entire build is up to scale too Fable 5, welcome back.

ashen

224,444 views • 4 months ago

just sent my first prompt to Fable 5 > it instantly routed the task to Opus 4.8 > which spawned Sonnet 5 sub agents > that burned 30% of my weekly limit > and handed me slop this thing used to build full open words and refactor entire codebases in one shot WHAT DID YOU DO ANTHROPIC
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just sent my first prompt to Fable 5 > it instantly routed the task to Opus 4.8 > which spawned Sonnet 5 sub agents > that burned 30% of my weekly limit > and handed me slop this thing used to build full open words and refactor entire codebases in one shot WHAT DID YOU DO ANTHROPIC

Machina

545,392 views • 4 months ago

Claude Fable 5 excels at scriptwriting. We just paired it with the Higgsfield MCP and the results are stunning. Here is a comparison with Opus 4.8:
0:10

Claude Fable 5 excels at scriptwriting. We just paired it with the Higgsfield MCP and the results are stunning. Here is a comparison with Opus 4.8:

Higgsfield AI 🧩

117,073 views • 4 months ago

Fable 5 is not fable 5 anymore - they lifted export controls after adding new classifiers - added new safeguards. - and now the routine coding/debugging falls back to Opus 4.8
0:18

Fable 5 is not fable 5 anymore - they lifted export controls after adding new classifiers - added new safeguards. - and now the routine coding/debugging falls back to Opus 4.8

Wise

332,965 views • 4 months ago

Back to experiment creating a new tool with Opus 4.8 again Not bad, but def not hitting like Fable 5
0:14

Back to experiment creating a new tool with Opus 4.8 again Not bad, but def not hitting like Fable 5

Ann Nguyen

38,192 views • 4 months ago

The drama continues to heat up.👀 Anthropic says other models already have Fable 5…
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The drama continues to heat up.👀 Anthropic says other models already have Fable 5…

Ant

42,734 views • 4 months ago

Fable 5 vs Opus 4.8 on Arcads MCP Both videos generated with Arcads X Claude
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Fable 5 vs Opus 4.8 on Arcads MCP Both videos generated with Arcads X Claude

Romain Torres

450,648 views • 3 months ago

I tested Kimi K3 vs Claude Opus 4.8 Same prompt, an armory bay with lighting, props, and detail. Top is Kimi K3, bottom is Opus 4.8. It's not even close. Kimi K3 built a full scene with textures, proper lighting, ammo crates, weapon racks, working detail everywhere. Opus 4.8 gave me a near empty room with a couple of floating tables. No doubt it beats Opus 4.8. Kimi K3 is Fable 5 level, and it's clearly better than GPT-5.6 Sol at 3D and games. An open weight model just matched the best closed models on the market. Let that sink in.
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I tested Kimi K3 vs Claude Opus 4.8 Same prompt, an armory bay with lighting, props, and detail. Top is Kimi K3, bottom is Opus 4.8. It's not even close. Kimi K3 built a full scene with textures, proper lighting, ammo crates, weapon racks, working detail everywhere. Opus 4.8 gave me a near empty room with a couple of floating tables. No doubt it beats Opus 4.8. Kimi K3 is Fable 5 level, and it's clearly better than GPT-5.6 Sol at 3D and games. An open weight model just matched the best closed models on the market. Let that sink in.

Bhavy☄️

481,059 views • 3 months ago

HERMES AGENT NOW RUNS CLAUDE OPUS 5. NEAR FABLE 5 INTELLIGENCE. HALF THE PRICE. SELF-VERIFIES ITS OWN WORK. AVAILABLE TODAY VIA NOUS PORTAL (20% OFF ALL MODELS). Anthropic shipped Opus 5 on July 24, 2026. same $5/$25 per million tokens as Opus 4.8. but the benchmarks tell a different story. WHAT CHANGED FROM OPUS 4.8: FrontierBench v0.1: Opus 5: 43.3%. Opus 4.8: 18.7%. 2.3x jump on the same test. ARC-AGI-3: Opus 5: 30.2%. 3x better than the next closest model. beat Fable 5 on 8 out of 13 benchmarks. at half the cost ($5/$25 vs $10/$50). same price as Opus 4.8. twice the intelligence. no reason to stay on 4.8. THE SPECS: model ID: claude-opus-5 context: 1M tokens (default and maximum) max output: 128K tokens thinking: on by default effort toggle: low / medium / high per request fast mode: $10/$50, 2.5x faster knowledge cutoff: May 2026 minimum cacheable prompt: 512 tokens (was 1,024) SELF-VERIFICATION (the biggest change): Opus 5 checks its own work automatically. Anthropic says: delete your verification prompts. "include a final verification step" now causes OVER-verification because the model already does it. for Hermes /goal tasks this is a direct upgrade. the judge checks evidence. the model also checks evidence. double layer of verification without extra tokens. EFFORT TOGGLE: low: fast, cheap, routine work. medium: balanced, daily tasks. high: full reasoning, complex problems. set per request. not a global switch. matches Hermes /reasoning command: /reasoning low (routine) /reasoning high (complex) Opus 5 effort toggle + Hermes reasoning control = precise cost management per turn. WHERE OPUS 5 FITS IN HERMES: DAILY DRIVER (replaces Opus 4.8): same price. 2.3x better benchmarks. set as your main model: Desktop app / Dashboard: Models → claude-opus-5 CHIEF OF STAFF: synthesis across multiple agents. reads Kanban, prioritizes, routes tasks. self-verification catches routing errors before they cascade. COMPLEX CODING: SOTA on agentic coding benchmarks. FrontierBench 43.3% = best public model for coding. set as coder profile model. /GOAL TASKS: self-verification + completion contracts = the model proves its work AND double-checks the proof. long-horizon goals finish correctly more often. MoA AGGREGATOR: strongest synthesis model at $5/$25. pair with GPT-5.6 and Grok 4.5 as references. Opus 5 aggregates. best quality at mid-range price. presets: max-quality: reference_models: - provider: openai-codex model: gpt-5.6-sol - provider: xai model: grok-4.5 aggregator: provider: anthropic model: claude-opus-5 COMPUTER USE: near-Fable 5 quality for browser automation. at half the token cost per session. computer_use tasks burn lots of vision tokens. Opus 5 halves that bill vs Fable 5. WHAT TO KEEP OPUS 5 AWAY FROM: cron monitoring: too expensive. use DeepSeek or no_agent mode. sub-agent grunt work: use GPT-5.6 Luna ($1/$6) or DeepSeek. auxiliary tasks: use Gemini Flash. routine web extraction: use a cheap model. Opus 5 is for the turns where quality compounds. planning, synthesis, verification, complex reasoning. budget models handle everything else. NOUS PORTAL: 20% OFF ALL MODELS Nous Portal currently runs a 20% discount on all models including Opus 5. $5/$25 official → $4/$20 through Nous Portal. the cheapest way to run Opus 5 right now. hermes setup --portal select claude-opus-5 as your model. discount applies automatically. Opus 5 replaces Opus 4.8 everywhere. same price. better at everything. no tradeoff. straight upgrade. hermes update /model claude-opus-5
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HERMES AGENT NOW RUNS CLAUDE OPUS 5. NEAR FABLE 5 INTELLIGENCE. HALF THE PRICE. SELF-VERIFIES ITS OWN WORK. AVAILABLE TODAY VIA NOUS PORTAL (20% OFF ALL MODELS). Anthropic shipped Opus 5 on July 24, 2026. same $5/$25 per million tokens as Opus 4.8. but the benchmarks tell a different story. WHAT CHANGED FROM OPUS 4.8: FrontierBench v0.1: Opus 5: 43.3%. Opus 4.8: 18.7%. 2.3x jump on the same test. ARC-AGI-3: Opus 5: 30.2%. 3x better than the next closest model. beat Fable 5 on 8 out of 13 benchmarks. at half the cost ($5/$25 vs $10/$50). same price as Opus 4.8. twice the intelligence. no reason to stay on 4.8. THE SPECS: model ID: claude-opus-5 context: 1M tokens (default and maximum) max output: 128K tokens thinking: on by default effort toggle: low / medium / high per request fast mode: $10/$50, 2.5x faster knowledge cutoff: May 2026 minimum cacheable prompt: 512 tokens (was 1,024) SELF-VERIFICATION (the biggest change): Opus 5 checks its own work automatically. Anthropic says: delete your verification prompts. "include a final verification step" now causes OVER-verification because the model already does it. for Hermes /goal tasks this is a direct upgrade. the judge checks evidence. the model also checks evidence. double layer of verification without extra tokens. EFFORT TOGGLE: low: fast, cheap, routine work. medium: balanced, daily tasks. high: full reasoning, complex problems. set per request. not a global switch. matches Hermes /reasoning command: /reasoning low (routine) /reasoning high (complex) Opus 5 effort toggle + Hermes reasoning control = precise cost management per turn. WHERE OPUS 5 FITS IN HERMES: DAILY DRIVER (replaces Opus 4.8): same price. 2.3x better benchmarks. set as your main model: Desktop app / Dashboard: Models → claude-opus-5 CHIEF OF STAFF: synthesis across multiple agents. reads Kanban, prioritizes, routes tasks. self-verification catches routing errors before they cascade. COMPLEX CODING: SOTA on agentic coding benchmarks. FrontierBench 43.3% = best public model for coding. set as coder profile model. /GOAL TASKS: self-verification + completion contracts = the model proves its work AND double-checks the proof. long-horizon goals finish correctly more often. MoA AGGREGATOR: strongest synthesis model at $5/$25. pair with GPT-5.6 and Grok 4.5 as references. Opus 5 aggregates. best quality at mid-range price. presets: max-quality: reference_models: - provider: openai-codex model: gpt-5.6-sol - provider: xai model: grok-4.5 aggregator: provider: anthropic model: claude-opus-5 COMPUTER USE: near-Fable 5 quality for browser automation. at half the token cost per session. computer_use tasks burn lots of vision tokens. Opus 5 halves that bill vs Fable 5. WHAT TO KEEP OPUS 5 AWAY FROM: cron monitoring: too expensive. use DeepSeek or no_agent mode. sub-agent grunt work: use GPT-5.6 Luna ($1/$6) or DeepSeek. auxiliary tasks: use Gemini Flash. routine web extraction: use a cheap model. Opus 5 is for the turns where quality compounds. planning, synthesis, verification, complex reasoning. budget models handle everything else. NOUS PORTAL: 20% OFF ALL MODELS Nous Portal currently runs a 20% discount on all models including Opus 5. $5/$25 official → $4/$20 through Nous Portal. the cheapest way to run Opus 5 right now. hermes setup --portal select claude-opus-5 as your model. discount applies automatically. Opus 5 replaces Opus 4.8 everywhere. same price. better at everything. no tradeoff. straight upgrade. hermes update /model claude-opus-5

YanXbt

16,744 views • 3 months ago

Anthropic CEO after realizing DeepSeek is almost matching Opus at 1/10th the price:
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Anthropic CEO after realizing DeepSeek is almost matching Opus at 1/10th the price:

KC

133,787 views • 14 days ago

Been trying Anthropic Fable 5.1 vs OpenAI Astra recently. Pretty clear who the real winner is.
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Been trying Anthropic Fable 5.1 vs OpenAI Astra recently. Pretty clear who the real winner is.

Dylan Patel

664,669 views • 1 month ago

ANTHROPIC JUST DROPPED THE OFFICIAL FABLE 5 + COWORK GUIDE. Most people prompt it step by step. That's the mistake — Fable 5 needs a goal, not a checklist. Stop steering it like a chatbot. Start briefing it like a colleague. Give it the outcome. It plans the steps, checks its own work, and delivers finished work. full breakdown below. Bookmarked this
0:13

ANTHROPIC JUST DROPPED THE OFFICIAL FABLE 5 + COWORK GUIDE. Most people prompt it step by step. That's the mistake — Fable 5 needs a goal, not a checklist. Stop steering it like a chatbot. Start briefing it like a colleague. Give it the outcome. It plans the steps, checks its own work, and delivers finished work. full breakdown below. Bookmarked this

Kirill

24,513 views • 3 months ago

Breaking: Fable 5.1 first output is here anthropic really cooked harder with this one and frontend is improved alot too looks like team is planning to release this anytime soon for some users fable 5 is being routed to 5.1 so check if you have access or not
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Breaking: Fable 5.1 first output is here anthropic really cooked harder with this one and frontend is improved alot too looks like team is planning to release this anytime soon for some users fable 5 is being routed to 5.1 so check if you have access or not

J A Z I I

19,586 views • 2 months ago

Kimi-K3 VS Opus-4.8 GTA IV test. Left : Kimi, Right : Opus-4.8 Kimi-K3 got impressively better than its previous model. + Muse Spark 1.1 generated something that can’t be played at all. + Gemini 3.5 Flash called itself from Anthropic and the game can’t be played too.
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Kimi-K3 VS Opus-4.8 GTA IV test. Left : Kimi, Right : Opus-4.8 Kimi-K3 got impressively better than its previous model. + Muse Spark 1.1 generated something that can’t be played at all. + Gemini 3.5 Flash called itself from Anthropic and the game can’t be played too.

Jun Song

26,335 views • 3 months ago

update opus 5.5 nerf test: opus 5.5 before vs now tested using the same i wouldn’t say opus is nerfed only needs a few more prompts to make it look like the first one let me know what you guys think is it nerfed or not ?
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update opus 5.5 nerf test: opus 5.5 before vs now tested using the same i wouldn’t say opus is nerfed only needs a few more prompts to make it look like the first one let me know what you guys think is it nerfed or not ?

Haleemah

141,421 views • 11 days ago