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GPT-5.5

OpenAI · Sorti avr. 2026

Recommandé

GPT-5.5 is OpenAI's April 2026 general-purpose model at $5 input and $30 output per 1M tokens, with a 1M+ token context (922K in, 128K out). It is no longer OpenAI's only deployable frontier option: the GPT-5.6 family is on the public price list, and GPT-6 Sol lists at $2/$10. It stays recommended as a stable, widely supported production baseline, but new workloads should test GPT-6 Sol or GPT-5.6 Terra first.

Est-ce fait pour vous ?

Recommandé pour

  • Existing OpenAI production workloads already validated on it: generally available with broad tooling, Responses and Chat Completions support, and image input
  • Complex professional workloads needing strong reasoning and a 1M+ token context window (922K input)
  • Teams already on the OpenAI ecosystem — broad tooling, Responses + Chat Completions API support, image input

Déconseillé pour

  • Pure price-performance on specific tasks — Gemini 3.5 Flash ties it on OSWorld at 1/3 the cost; GPT-5.6 Terra claims GPT-5.5-class perf at half price
  • Very-long-context sessions — prompts over 272K input tokens are billed at 2x input / 1.5x output for the whole session
  • New deployments chosen on price: GPT-6 Sol lists at $2 input / $10 output per 1M tokens short context, against GPT-5.5's $5 / $30

Performances par tâche

Raisonnement complexe

Very Good

Bon raisonnement pour charges professionnelles ; la référence OpenAI à laquelle les nouveaux modèles sont comparés

Codage agentique

Very Good

Solide et généralement disponible ; GPT-5.6 Terra/Sol et Fable 5 dominent les benchmarks de codage haut de gamme

Travail en contexte long

Very Good

Contexte de 1M+ (922K en entrée) gère de larges corpus ; attention au surcoût au-delà de 272K tokens

Utilisation d'ordinateur

Good

78,7% OSWorld-Verified — égalé par Gemini 3.5 Flash à un tiers du coût

Tarifs

Entrée

$5 / 1M tokens

Sortie

$30 / 1M tokens

Contexte

1M+ tokens (922K in / 128K out)

Voir tous les tarifs

Historique des verdicts

26 sept. 2026
recommended -> recommended (summary corrected: GPT-5.6 no longer gated, GPT-6 Sol released): rating_before=recommended, rating_after=recommended. The standing summary called GPT-5.5 'the deployable OpenAI anchor while the GPT-5.6 family stays government-gated'. OpenAI's API pricing page, fetched 26 September 2026, lists gpt-5.5 at $5/$30 alongside standard rows for gpt-5.6-sol, gpt-5.6-terra and gpt-5.6-luna and for gpt-6-sol at $2/$10; the API changelog records GPT-6 Sol's release on 22 September. Stale self-authored prose corrected; rating held pending an operator ruling on whether a two-generations-old model keeps recommended.
15 juil. 2026
copy edit to brevity standard: detail preserved in children

Journal de vérification

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  • Profil· Mis à jour

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    Pricing unchanged: gpt-5.5 (<272K) $5/$0.50 cached/$30 matches scalars. Stale self-authored prose: summary, strengths best_for[0] and audience for_whom[0] said the GPT-5.6 family 'stays government-gated'; the pricing page lists gpt-5.6-sol/terra/luna as standard rows and gpt-6-sol at $2/$10 (changelog Sep 22). REFRESHED via model_update: best_for[0] and for_whom[0] rewritten, avoid_for added (GPT-6 Sol $2/$10 vs $5/$30). Summary corrected via verdict_set 3f42e5e5-7b59-422d-8167-9b038fcb7515. rating_before=recommended, rating_after=recommended (held; operator ruling needed on rating for a superseded model). No draft: correction of own prose, no vendor event.

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    Created new registry entry GPT-5.5 (general commercial model, distinct from existing gpt-5-5-cyber): $5/$30 per 1M, 1M+ context (922K in / 128K out), released 2026-04-23, verdict recommended (deployable OpenAI frontier anchor while GPT-5.6 family stays gated).

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    Importé au lancement

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    Importé au lancement

Comment nous évaluons