Claude Fable 5 is Anthropic's best model for writing — it scores 98/100 vs 98/100 for Claude Sonnet 4.6, at $10/1M input tokens. It is also the top-ranked writing model across every provider we track.
The shortest way to see the safest default, the lower-cost option, and the specialist pick before you read deeper.
Claude Fable 5 is the safest overall answer here when you want the strongest default instead of the lowest list price.
Meta: Llama 3.1 8B Instruct is the lower-cost option to start with when you still need useful output at scale.
Claude Sonnet 4.6 is the better pick when response speed matters more than maximum reasoning depth.
Claude Fable 5 leads Anthropic's lineup for writing at 98/100 ($10/1M input, 1M context).
Claude 4 Haiku is the value pick at $0.8/1M input with a writing score of 85/100.
Claude Fable 5 is also the #1 writing model in the entire directory — no provider switch needed.
Choose Claude Fable 5 when writing quality is the priority and you're staying on Anthropic.
Choose Claude 4 Haiku when token volume matters more than peak quality.
Teams comparing providers can stop here — Claude Fable 5 is the current cross-provider leader.
Switch the scoring lens to see whether the top answer changes when you care more about cost, speed, or long-document 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.
The fastest way to see where the recommendation shifts when your priority changes.
New global #1 — 80.3% SWE-Bench Pro, the most capable model generally available.
Best daily driver for coding and writing — the model most developers actually reach for.
The frontier ceiling — same model as Fable 5, safeguards lifted, partner-only.
New #1 on SWE-Bench Pro — parallel subagents, same price as Opus 4.7.
Previous Opus flagship, now superseded by Claude Opus 4.7.
Best premium model for coding agents and high-stakes engineering work.
80.3% SWE-Bench Pro — the new #1, up from Opus 4.8's 69.2% and GPT-5.5's 58.6%
1932 on GDPval-AA, ahead of Opus 4.8 (1890) and GPT-5.5 (1769)
1M-token context at standard pricing, 128K max output per request
Mythos-class capability released for general use with new cyber-risk safeguards
Priced at $10/$50 per 1M tokens — double Opus 4.8 ($5/$25)
Deliberate pace; not for latency-sensitive interactive apps
Standard-use safeguards block some high-risk security workloads (use Mythos 5 with partner access)
UseRightAI recommendations are based on practical decision factors people actually feel in day-to-day use.
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Claude Fable 5 — it scores 98/100 on writing in this directory, ahead of Claude Sonnet 4.6 at 98/100. New global #1 — 80.3% SWE-Bench Pro, the most capable model generally available.
Yes — Claude Fable 5 currently tops the entire directory for writing at 98/100.
Claude 4 Haiku at $0.8/1M input tokens (writing score: 85/100). Use it for volume work and reserve Claude Fable 5 for the tasks where quality matters most.
$10/1M input tokens and $50/1M output tokens via the API, or through Claude Pro at $20/mo for chat use. Context window: 1M tokens.