Claude Opus 4.8
Anthropic · Lanzado may 2026
Claude Opus 4.8 is Anthropic's previous-generation Opus, now listed as legacy: 1M-token context, 128K output, $5/$25 per 1M tokens, retirement not before 28 May 2027. It remains our pick for review-heavy work such as code review and constrained refactoring, where deliberate pacing beats persistence. New workloads should start on Claude Opus 5.5 at $4/$20, which Anthropic now recommends.
¿Es adecuada para ti?
Bueno para
- Review-heavy engineering work — code review, refactoring under strict constraints, and tasks where deliberate pacing beats raw persistence (our pick for this over Fable 5)
- Complex analytical reasoning and long-document analysis — 1M-token context holds entire codebases, contracts, or research corpora in a single request
- Agentic coding on a stable subscription — included in Pro/Max/Team/Enterprise plans, unlike Fable 5's credit-only access
- Pinned deployments that need a stable model: Anthropic lists Opus 4.8 as legacy but still available, with retirement not sooner than May 28, 2027
No recomendado para
- Absolute-longest-horizon autonomous agentic runs — Fable 5 produced 31% fewer dead-end loops on hour-plus tasks in our pipeline
- Cost-sensitive high-volume production: at $25 per 1M output, batch workloads are cheaper on Sonnet 5 ($2/$10) or Opus 5.5 ($4/$20)
- New workloads: Anthropic recommends migrating to Claude Opus 5.5, the current Opus model, at $4/$20 per 1M tokens
Rendimiento por tarea
Revisión de código
Nuestra elección para trabajo con mucha revisión: deliberado, respetuoso con las restricciones, eficaz detectando regresiones
Programación agentiva
Excelente e incluido en la suscripción; Fable 5 lo supera en las ejecuciones autónomas de horizonte más amplio (31% menos de bucles sin salida en nuestro pipeline)
Razonamiento de contexto amplio
El contexto de 1M de tokens gestiona bases de código y corpus documentales completos en una sola pasada
Trabajo de conocimiento
Razonamiento analítico y síntesis de primer nivel para tareas complejas multidocumento
Precios
Entrada
$5 / 1M tokens
Salida
$25 / 1M tokens
Contexto
1M tokens
Pruebas de rendimiento
Historial de veredictos
Fuentes
Registro de verificación
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Pricing $5/$25 and 1M context match. Anthropic now lists Opus 4.8 as legacy (retirement not before 2027-05-28). Stale prose fixed via model_update. The strength claiming GPT-5.6 Sol 'stays government-gated' was replaced with a legacy/retirement row. The avoid_for row citing 'Sonnet 5 ($3/$15)' now reads $2/$10, matching the live rate card, and adds Opus 5.5 at $4/$20. Added an avoid_for row saying new workloads should use Opus 5.5. pricing_url moved to the platform rate card. The summary called it 'flagship' and 'frontier incumbent'. It was corrected via verdict_set ad01d569, rating_before=recommended and rating_after=recommended; the rating is held pending an operator ruling. Scalars unchanged.
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Rewrote seed-junk entry in place (slug kept): name 'Claude 4 Opus' -> 'Claude Opus 4.8'; release 2026-05-01 -> 2026-05-28; pricing $15/$75 -> real $5/$25 per 1M (regular); context set to 1M; verdict conditional -> recommended; summary/strengths/audiences/task-ratings/sources fully replaced with sourced Opus 4.8 data. Anchors published post 'Claude Opus 4.8' affected-entity to this slug.
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Pricing unchanged: $15/$75 per 1M tokens. Now listed as legacy (Opus 4.1) on Anthropic pricing page; current Opus tier is 4.8 at $5/$25.
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Opus 4 (original) remains at $15/$75 in legacy section. Current model is Opus 4.8 at $5/$25 but entity tracks original Opus 4.
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Importado en el lanzamiento
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Importado en el lanzamiento