Claude Fable 5
Anthropic's new Mythos-class flagship and the most capable coding model anyone can use — 80.3% SWE-Bench Pro, an 11-point jump over Opus 4.8. 1M context, 128K output, native parallel subagents. Released June 9, 2026.
Teaching AI works best when it saves prep time without adding editing overhead. The best picks here understand curriculum structure, grade-level language, and the difference between a lesson plan that works and one that just looks complete.
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/Rankings refresh daily when model data changesBest daily driver for coding and writing — the model most developers actually reach for.
The top teacher pick produces clear, grade-appropriate materials without requiring significant rewriting.
Alternatives are worth using when bulk resource generation or budget constraints define the decision.
The ranking rewards educational clarity, adaptability, and practical classroom usefulness.
Choose the top pick for lesson plans, rubrics, and differentiated content where quality directly affects students.
Choose a faster alternative for quiz generation, worksheet variations, and high-volume content production.
Choose a budget model for templated materials and admin documents that get reviewed before distribution.
Use the controls to see how the recommendation changes when your workflow shifts toward quality, cost, speed, or long-context work.
Anthropic / Premium / Jun 9, 2026
New global #1 — 80.3% SWE-Bench Pro, the most capable model generally available.
Ranks models by the broadest mix of coding, writing, research, and long-context usefulness.
You are latency- or cost-sensitive, or your tasks don't need frontier-level reasoning — Opus 4.8 at half the price is plenty.
Strong coding quality with 1M context at $3/1M input
Default model in Cursor and Windsurf, the two most popular AI coding editors
Best writing quality in its price tier — tone, long-form clarity, editorial polish
Claude Opus 4.7 has a higher current premium coding ceiling
GPT-5.5 or GPT-5.4 are better picks when OpenAI computer-use workflows are the priority
Strong backups depending on your budget, workload, and preferred tradeoffs.
Anthropic's new Mythos-class flagship and the most capable coding model anyone can use — 80.3% SWE-Bench Pro, an 11-point jump over Opus 4.8. 1M context, 128K output, native parallel subagents. Released June 9, 2026.
Anthropic's most powerful frontier model — the same underlying model as Fable 5 with safeguards lifted in some areas, restricted to vetted enterprise and research partners. The capability ceiling of mid-2026.
Anthropic's newest Opus flagship — 69.2% SWE-Bench Pro, 88.6% SWE-Bench Verified, 1890 Arena Elo (121 pts ahead of GPT-5.5), and native parallel subagents. Same $5/$25 price as Opus 4.7.
Anthropic's previous Opus flagship for high-stakes coding, reasoning, and deep research before Opus 4.7.
UseRightAI recommendations are based on practical decision factors people actually feel in day-to-day use.
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Claude Sonnet 4.6 is the current top recommendation because it delivers the strongest mix of fit, output quality, and practical usefulness for this category.
Claude 4 Haiku is the strongest lower-cost alternative when you want better value without dropping all the way down in usefulness.
Choose the top pick when you want the safest default. Choose an alternative when your priority shifts toward cost, speed, context window, or a more specialized workflow fit.
Claude 4 Haiku is the cheapest strong alternative here if you want better value without dropping to a weak default.