Claude Opus 5.2 was never released: what Anthropic shipped on 2026-09-22 is Opus 5.5
The newest Opus id is claude-opus-5-5
The Opus column of Anthropic's model overview now reads claude-opus-5-5 (released 2026-09-22 at $4 / $20); claude-opus-5 sits in the Legacy (still available) list on the same page. Neither 5.1 nor 5.2 was announced, and the numbering is unexplained.
Updated 2026-09-19
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Four key points
Newest tier id
The Opus row of the official table now; the older generation sits under Legacy.
Official release date
Opus 5.5's release date, listed Active.
Official price list
The Opus 5.5 row on the official price list: $4 input, $20 output, cache reads $0.20 — footnoted at 0.05x the base input price.
Checked on
All four languages rest on that day's capture of the official table.
What this is
People searching "Claude Opus 5.1" and "Claude Opus 5.2" ask one question: has the next Opus shipped? It has — on 2026-09-22 Anthropic released Claude Opus 5.5 (claude-opus-5-5), now listed in the model overview's comparison table and marked Active in the deprecations table. No model numbered 5.1 or 5.2 was announced, and Anthropic has not explained how it numbers releases; this page does not guess for it.
What happened
On 2026-09-22 Anthropic released Claude Opus 5.5 (claude-opus-5-5) at $4 / $20 with cache reads at $0.20; since Claude Code 2.1.280 it is the default Opus there too. On 2026-09-28 the official post said Sonnet 5.5 has shipped and named Haiku 5.5 as next in the family; Haiku 5.5 released on 2026-10-07. 5.1 / 5.2 still have no row.
Timeline
2026-07-24 Claude Opus 5 went GA as claude-opus-5 — the previous generation now under Legacy.
2026-09-22 Claude Opus 5.5 released as claude-opus-5-5 at $4 / $20 on the official price list — this is the "next Opus".
2026-09-29 re-check of the three official tables: the newest Opus is claude-opus-5-5, with no rows for 5.1 or 5.2.
Confirmed vs caution
Officially confirmed
Three official sources: the model overview lists claude-opus-5-5 as the Opus column and says "start with Claude Opus 5.5"; the official price list gives $4 / $20 with cache reads at 0.05x; the deprecations table lists it Active. Release date 2026-09-22.
⚠️ Caution
A "claude-opus-5-2 slug seen in some console" is still off-site evidence: as of 2026-09-29 the newest Opus in the official tables is claude-opus-5-5 (2026-09-22); there is no 5.1 or 5.2, and there is no official explanation of how it numbers releases. This page draws no conclusion from a slug and invents no reason for the jump.
Same vs differs
Same
Both claude-opus-5-5 and claude-opus-5 sit in the official price list and the deprecations table, each with its own prices and lifecycle status (both listed Active).
Differs
The difference is generation: the newest tier is claude-opus-5-5, while claude-opus-5-1 and claude-opus-5-2 have no row and no API id.
What to do
As of 2026-09-29 the Opus tier to pick on QCode is claude-opus-5-5 (released 2026-09-22 at $4 / $20); claude-opus-5 still works on QCode (official price $5 / $25) but is no longer Anthropic's newest Opus - specs and prices are in /claude-opus-5-5-guide.
On QCode
claude-opus-5-5 is on sale on QCode with real 30-day traffic. Anthropic never published a claude-opus-5-2 id, so there is nothing to add; model changes follow /models.
FAQ
Has Claude Opus 5.2 shipped?
No. The newest Opus Anthropic released on 2026-09-22 is Claude Opus 5.5, id claude-opus-5-5; 5.2 has never appeared in the official tables.
What about 5.1?
5.1 was never announced either. The tables list neither claude-opus-5-1 nor claude-opus-5-2; the newest tier in the table reads claude-opus-5-5 today.
Why did the version number jump to 5.5?
Anthropic has not explained how it numbers releases, and this page invents no reason. The record we can check: what shipped on 2026-09-22 was Claude Opus 5.5 (claude-opus-5-5); no 5.2 was announced.
I saw a 5.2 slug in a console
That is off-site evidence. As of 2026-09-29 the newest Opus in the official tables is claude-opus-5-5; callability follows the official table and QCode /models, not a string seen in some console.
Which id works now?
Use claude-opus-5-5: the newest tier, with real 30-day traffic on QCode.
When should this page be re-checked?
This page goes stale once the official table shows a new Opus row after 5.5. Capture date 2026-09-29 is stated in Sources.
Sources
Anthropic's official model overview, price list and deprecations table (platform.claude.com), captured 2026-09-29; the Claude Code changelog checked the same day. All three name claude-opus-5-5 as the newest tier.
Set the row that officially exists
claude-opus-5-5 is callable on QCode, same key as fable and sonnet.
Related
Claude Opus 5 guide
The previous Opus: its id, capabilities and prerequisites.
Claude Fable 5.2 status
The same shape of rumour on another generation.
GPT-6 Sol released: specs and pricing
Another vendor's new model: from community label to official release.
This page keeps two tiers apart: what the three official tables confirm (model, release date, price) and what was never announced — no id, date or price for 5.1 / 5.2. A slug seen in some console is not release evidence, and leaked benchmarks are not used.