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𪶠Claude Fable 5ãšã¯ â Opusã®äžã«çŸãããMythosçŽãã¢ãã«ãšãäŒè©±äžã«ã¢ãã«ãåãæ¿ããæ°ããå®å šèšèš
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2026 幎 6 æ 10 æ¥ãAnthropic ããæ°ãããã©ãã°ã·ããã¢ãã« Claude Fable 5 ãš Claude Mythos 5 ãçºè¡šãããŸããããããŸã§ã®æäžäœã ã£ã Opus çŽã®ããã«äžã«ãMythos çŽããšããæ°ããæ®µéãèšãããã®äžè¬æäŸçã Fable 5ãç¹å®åéã®å¶éãè§£é€ããçã Mythos 5ããšããæ§æã§ããçºè¡šã§ã¯ããã¹ãæžã¿ã®ã»ãŒãã¹ãŠã®ãã³ãããŒã¯ã§æ¥çæé«æ§èœïŒstate-of-the-art on nearly all tested benchmarksïŒããšãããŠããŸãã
ä»åã®çºè¡šã§é¢çœãã®ã¯ãæ§èœã®è©±ãšåããããå®å šèšèšã®è©±ãæ¿ãããšã§ããé«åºŠã«ãªã£ãèœåã®äžéšïŒæ»æçãµã€ããŒã»ãã¥ãªãã£ãçç©åŠãªã©ïŒã¯äžè¬æäŸçã§ã¯ã¯ã©ã·ãã¡ã€ã¢ã§ãããã¯ããããã®ãšãäŒè©±ã¯ Claude Opus 4.8 ãžèªåãã©ãŒã«ããã¯ããŸãããäŒè©±ã®éäžã§ã¢ãã«ãåãæ¿ããããšããããããŸã§ã«ãªãæåããããã¯ãã«çµã¿èŸŒãŸããŸããã
ãã®èšäºã§åããããš:
- ð Fable 5 / Mythos 5 ã®äœçœ®ã¥ã â ãMythos çŽããšããæ°ããæ®µéã®æ§é
- ð çºè¡šãããæ§èœïŒã³ãŒãã£ã³ã°ã»éèã»ããžã§ã³ã»é·æéã¿ã¹ã¯ïŒãšé¡§å®¢äºäŸ
- 𧬠çç©å»åŠã»ç§åŠåéã§ã®ææïŒã¿ã³ãã¯è³ªèšèšã»ã²ããã¯ã¹ïŒ
- ð° äŸ¡æ ŒãšæäŸæ¹æ³ïŒã¢ãã«IDã»ãã©ã³ã»æ®µéçå±éã®ã¹ã±ãžã¥ãŒã«ïŒ
- ð¡ïž å®å šèšèš â 3 é åã®ã¯ã©ã·ãã¡ã€ã¢ãš Opus 4.8 ãžã®èªåãã©ãŒã«ããã¯
- ð äŒè©±äžã«ã¢ãã«ãåãæ¿ããä»çµã¿ïŒããªã¬ãŒã»æéã»éç¥ã»ãªããã¢ãŠãïŒ
ð Fable 5 / Mythos 5 ãšã¯ â ãMythosçŽããšããæ°ããæ®µéãž
ãŸãå šäœã®æ§é ããæŽçããŸããFable 5 ãš Mythos 5 ã¯åãåºç€ã¢ãã«ã§ããéãã¯ã»ãŒãã¬ãŒãã®æ§æã«ãããŸãã
ãã®å³ã®ãã€ã³ãã¯ããèœåãèœãšããå»äŸ¡çããšããã«çããšããåãæ¹ã§ã¯ãªãããšã§ããçºè¡šã®èšèãåãããšãMythos 5 㯠"The same underlying model as Fable 5, but with safeguards lifted"ïŒFable 5 ãšåãåºç€ã¢ãã«ã ããã»ãŒãã¬ãŒããè§£é€ãããã®ïŒã§ããèœåã¯ã©ã¡ããåãã§ã誰ã«ã»ã©ã®ç¯å²ã®èœåãéãããã¢ã¯ã»ã¹å¶åŸ¡ã§åããŠããŸãã
| ã¢ãã« | æäŸå¯Ÿè±¡ | ã»ãŒãã¬ãŒã |
|---|---|---|
| 𪶠Claude Fable 5 | å šãŠãŒã¶ãŒïŒçºè¡šæ¥ããå©çšå¯èœïŒ | ãµã€ããŒã»çç©çã®é«åºŠèœåãã¯ã©ã·ãã¡ã€ã¢ã§ããã㯠|
| ð Claude Mythos 5 | Glasswing ããŒãã㌠/ éžå®ãããçç©ç ç©¶è | 察象åéã®å¶éãè§£é€ïŒçç©ç ç©¶è ã¯ãµã€ããŒå¶éã¯ç¶æïŒ |
Mythos 5 ã®æäŸã¯ãç±³åœæ¿åºãšååãã Project Glasswing ã®æ çµã¿ãšãè€æ°ã®çåœç§åŠæ©é¢ããéžã°ããå°æ°ã®ç ç©¶è ãžã®ãä¿¡é Œã¢ã¯ã»ã¹ããèµ·ç¹ã§ããä»åŸããµã€ããŒã»ãã¥ãªãã£çµç¹åãã®äœç³»çãªä¿¡é Œã¢ã¯ã»ã¹ããã°ã©ã ãåºããŠããäºå®ãšãããŠããŸãã
ð æ§èœ â ãã¿ã¹ã¯ãé·ãè€éãªã»ã©ããªãŒãã倧ãããªãã
çºè¡šã®ããŒã¡ãã»ãŒãžã¯ "The longer and more complex the task, the larger Fable 5's lead"ïŒã¿ã¹ã¯ãé·ãè€éã§ããã»ã©ãFable 5 ã®ãªãŒãã¯å€§ãããªãïŒã§ãããçãå¿çã®è³¢ãã§ã¯ãªããé·æéã»å€æ®µéã®ä»äºãããåãèœåãåé¢ã«åºããŠããŸãã
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| åé | çµæïŒçºè¡šã§ã®èšèŒïŒ |
|---|---|
| ð» ã³ãŒãã£ã³ã° | Cognition ã® FrontierCode ã§æé«ã¹ã³ã¢ïŒäžçšåºŠã® thinking effort ã§ãïŒãStripe ã¯ãæ°ã¶æã®ãšã³ãžãã¢ãªã³ã°ãæ°æ¥ã«å§çž®ããšå ±åããRuby 5,000 äžè¡ã®ã³ãŒãããŒã¹ã§ 2 ã¶æçžåœã®äœæ¥ã 1 æ¥ã§å®äº |
| ð¹ éè | Hebbia Finance Benchmark ã§æé«ç¹ãIMC ã®ååŒåæè©äŸ¡ã§ã»ãŒå šé ç®ã§åªç§ãªæçžŸ |
| ðïž ããžã§ã³ | ç§åŠå³ããã®æ£ç¢ºãªæ°å€æœåºãã¹ã¯ãªãŒã³ã·ã§ããããã® Web ã¢ããªã®ãœãŒã¹ã³ãŒãåæ§ç¯ |
| ð® é·æéã¿ã¹ã¯ | ãã±ã¢ã³ããã¡ã€ã¢ã¬ããããã¹ã¯ãªãŒã³ã·ã§ããã®ã¿ã§å®å šã¯ãªã¢ãSlay the Spire ã§ã¯ãã¡ã€ã«ããŒã¹ã®ã¡ã¢ãªæŽ»çšã§ Opus 4.8 æ¯ 3 åã®æ§èœåäž |
| âïž å¹ç | 以åã® Claude ã¢ãã«ããããŒã¯ã³å¹çãé«ããReplit ããã¯ãããå°ãªãã¿ãŒã³ã§ãããé«åºŠãªãšã³ãžãã¢ãªã³ã°ãæäŸããããšããè©äŸ¡ |
ð¡ ã²ãŒã ã®ãã ãã¯äœèã®ããã§ããŠãå®ã¯éèŠãªå€åã瀺ããŠããŸããåã¢ãã«ã§ã¯ã²ãŒã ãã¬ã€ã«å°çšããŒãã¹ïŒè£å©ã®ä»çµã¿ïŒãå¿ èŠã ã£ãã®ã«å¯ŸããFable 5 ã¯ããžã§ã³ã ãã§ãã¬ã€ãåã£ããšãããŠããŸããã¹ã¯ãªãŒã³ã·ã§ãããèŠãŠãç¶æ³ãä¿ã¡ãé·æéåãç¶ããââãšãŒãžã§ã³ãçšéã®åºç€äœåããã®ãŸãŸæž¬ãããŠããããšèªããŸãã
顧客ã³ã¡ã³ããšããŠãCursor CEO ã®ããããŸã§æã®å±ããªãã£ãé·æãã©ã€ãºã³ã®åé¡çŸ€ãè§£ããããã«ãªã£ãããGitHub CPO ã®ãéçºè ã¯ãŸããŸãéå¿çãªä»äºããšãŒãžã§ã³ãã«ä»»ããããããšããèšèã玹ä»ãããŸããã
é·æéã¿ã¹ã¯ãæ¯ããŠããã®ããèªå·±æ€èšŒã®ã«ãŒãã§ããæ°çŸäžããŒã¯ã³ã«ãããé·æå®è¡ã¿ã¹ã¯ã«å¯Ÿå¿ããã¢ãã«èªèº«ãã¡ã¢ãåããªããåºåãæ¹åããŠããïŒ"It reflects on and validates its own work"ïŒãšãããŠããŸãã
ãã®å³ã®ãã€ã³ãã¯ãé·ãèµ°ãã»ã©å¹ããŠããä»çµã¿ã ãšããããšã§ããSlay the Spire ã®ãã¡ã¢ãªæŽ»çšã§ 3 åããšããçµæã¯ããã®ã«ãŒããã²ãŒã ãšããé·äžå Žã§çŽ çŽã«æ°åã«åºãäŸã ãšèªããŸãã
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å ·äœçãªã¹ã³ã¢ãèŠãŠãããŸããå ¬åŒçºè¡šã®ãã³ãããŒã¯è¡šã¯ç»åãšããŠã®ã¿æäŸãããŠãããããããã§ã¯ç¬¬äžè ã«ãã転èšïŒW&B ml-news ãš Digital Applied ã® 2 ãœãŒã¹ãç §åããéè€ããè¡ããã¹ãŠäžèŽããããšãç¢ºèªæžã¿ïŒã«åºã¥ããŠäž»èŠå€ãæŽçããŸããæ¯èŒå¯Ÿè±¡ã¯ Claude Opus 4.8 / GPT-5.5 / Gemini 3.1 Pro ã§ãã
| ãã³ãããŒã¯ | Fable 5 | Opus 4.8 | GPT-5.5 | Gemini 3.1 Pro |
|---|---|---|---|---|
| SWE-bench ProïŒã³ãŒãã£ã³ã°ïŒ | 80.3% | 69.2% | 58.6% | 54.2% |
| Terminal-Bench 2.1ïŒç«¯æ«æäœïŒ | 88.0% | 82.7% | 83.4% | 70.7% |
| FrontierCode DiamondïŒé«é£åºŠã³ãŒãã£ã³ã°ïŒ | 29.3% | 13.4% | 5.7% | â |
| OSWorld-VerifiedïŒã³ã³ãã¥ãŒã¿æäœïŒ | 85.0% | 83.4% | 78.7% | 76.2% |
| Humanity's Last ExamïŒããŒã«ãªãïŒ | 59.0% | 49.8% | 41.4% | 44.4% |
| Humanity's Last ExamïŒããŒã«ããïŒ | 64.5% | 57.9% | 52.2% | 51.4% |
| GDPval-AAïŒå®åã¿ã¹ã¯ã»EloïŒ | 1932 | 1890 | 1769 | 1314 |
| Blueprint-Bench 2ïŒå³é¢çè§£ïŒ | 38.6% | 14.5% | 36.2% | 26.5% |
| HealthBench ProfessionalïŒå»çïŒ | 66.0% | 56.9% | 51.8% | â |
| ExploitBenchïŒæ»æçãµã€ããŒèœåïŒ | 78.0% | 40.0% | 34.0% | â |
ãã®ã»ããLegal Agent Benchmark 13.3%ïŒOpus 4.8: 10.4% / GPT-5.5: 2.1% / Gemini 3.1 Pro: 0.0%ïŒãAutomationBench 17.4%ãããžã§ã³ã® GDP.pdfïŒããŒã«ãªãïŒ29.8%ãBioMysteryBench hard 46.1%ïŒOpus 4.8: 40.0%ïŒãªã©ãå ±åãããŠããŸãã
æ°åã®èªã¿æ¹ãšããŠã3 ç¹è£è¶³ããŸãã
- ð å·®ã倧ããã®ã¯ãé£ããã»é·ããç³»ã§ããFrontierCode DiamondïŒ29.3% vs 13.4%ïŒã Blueprint-Bench 2ïŒ38.6% vs 14.5%ïŒã®ããã«ãåã¢ãã«ãèŠæŠããé åã»ã©å·®ãéããŠãããããŒã¡ãã»ãŒãžã®ãã¿ã¹ã¯ãé·ãè€éãªã»ã©ãªãŒãã倧ãããã衚ã§ãè£ã¥ããããŠããŸãã
- ð¡ïž **äžéšã®ã¹ã³ã¢ã¯ãäžè¬æäŸçã§ã¯åºãªãæ°åã**ã§ããExploitBenchïŒ78.0%ïŒã®ãããªæ»æçãµã€ããŒèœåã¯ããŸãã«åè¿°ã®ã¯ã©ã·ãã¡ã€ã¢ããããã¯ããé åã«ããããŸãã転èšå ã®æ³šèšã«ããã°ãããããã»ãŒãã¬ãŒã察象é åã§ã¯ãäžè¬æäŸã® Fable 5 ã®äœææ§èœã¯ Opus 4.8 å¯ãã«ãªããšãããŠããŸããåºç€ã¢ãã«ã®èœåãšããããã€çã§äœ¿ããèœåãæå³çã«åããããŠããããšããããšã§ãã
- ð ç¬ç«èšæž¬ã§ã 1 äœã§ãããã³ããŒå ±åãšã¯å¥ã«ãvals.ai ãç¬èªã®æå°æ§æããŒãã¹ïŒbash ããŒã«ã®ã¿ïŒã§èšæž¬ãã SWE-bench Verified ã§ã¯ãFable 5 ã 95.0% ã§ 1 äœïŒOpus 4.8: 88.6% / GPT-5.5: 82.6%ïŒãšå ±åãããŠããŸãã
ð¡ æ³šæç¹ã 2 ã€ãâ äžã®è¡šã¯å ¬åŒç»åã®ç¬¬äžè 転èšã«åºã¥ããããæ£ç¢ºãªäžæ¬¡å€ã¯ã·ã¹ãã ã«ãŒãã§ã®ç¢ºèªãããããããŸããâ¡ GPQA ã®ãããªå®çªãã³ãããŒã¯ã¯ä»åã®å ¬åŒè¡šã«ã¯å«ãŸããŠããŸããããã»ãŒãã¹ãŠã®ãã¹ãæžã¿ãã³ãããŒã¯ã§æé«ããšãã衚çŸã¯ããããŸã§å ¬åŒãæ²èŒãã衚ã®ç¯å²ã§ã®è©±ãšããŠèªãã®ãå®å šã§ãã
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- ð¬ 仮説çæ: ååçç©åŠã®ä»®èª¬ã Opus çŽãšç²æ€æ¯èŒãããšãããçŽ 80% ã®å²åã§ Mythos çŽã®ä»®èª¬ãéžå¥œããã
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| ã¢ãã« ID | claude-fable-5 |
| å ¥åäŸ¡æ Œ | $10 / 100 äžããŒã¯ã³ |
| åºåäŸ¡æ Œ | $50 / 100 äžããŒã¯ã³ |
| äŸ¡æ Œã®äœçœ®ã¥ã | Mythos Preview æ¯ã§ãåé¡ä»¥äžã |
| æäŸå Žæ | Claude APIãæ¶è²»éããŒã¹ã® EnterpriseãPro / Max / Team / Enterprise ãã©ã³ |
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