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 the official model overview reads claude-opus-5-5 (released 2026-09-22 at $4 / $20; status Active); claude-opus-5 is marked on its official model page as the previous generation (still usable), with tentative retirement no sooner than 2027-07-24. Neither 5.1 nor 5.2 has been announced, and the numbering is unexplained.
Updated 2026-10-20
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Four key points
Newest tier id
The Opus row of the official comparison table today; the previous generation claude-opus-5 is listed as legacy on its model page, with status still Active.
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): it sits in the model overview comparison column, is listed Active in the deprecations table, and its tentative retirement is no sooner than 2027-09-22. No model numbered 5.1 or 5.2 was announced, and Anthropic has not explained how it numbers releases.
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, marked legacy on its model page.
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".
After the 2026-09-29 re-check, the official overview, price list and deprecations table were re-checked on 2026-10-19, the capture day: the newest Opus is still claude-opus-5-5, retirement no sooner than 2027-09-22; claude-opus-5 retires no sooner than 2027-07-24. Rows for 5.1 and 5.2 still do not exist.
Confirmed vs caution
Officially confirmed
The official 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 status is Active (latest), released 2026-09-22, retirement no sooner than 2027-09-22. claude-opus-5 is marked the previous generation (legacy) but still usable, at $5 / $25, retirement no sooner than 2027-07-24.
⚠️ Caution
A "claude-opus-5-2 model name seen in some console" is still off-site evidence: as of 2026-10-19 the newest Opus in the official tables remains claude-opus-5-5 (released 2026-09-22), there are no rows for 5.1 or 5.2, and the numbering has no official explanation.
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 2026-10-19 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; marked the previous generation) 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. Not ready for a monthly plan? Pay-as-you-go Packs start at $4 for a one-time quota you use within 7 days.
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. 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 model name in a console
That is off-site evidence. As of 2026-10-19 the newest Opus in the official tables is claude-opus-5-5; callability follows the official table and QCode /models, not a model name seen in some console.
Which id works now?
Use claude-opus-5-5: the newest official tier, with 30 days of real traffic on QCode. Want to try the new model for a few days first? Pay-as-you-go Packs start at $4 for a one-time quota you use within 7 days.
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 2026-10-19 is stated in Sources.
Sources
Anthropic's official model overview, price list, model deprecations table and newsroom (platform.claude.com, anthropic.com), captured 2026-10-19; the Claude Code changelog was checked the same day up to 2.1.303. All tables 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.
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What is confirmed comes from the official tables: model, release date, prices and tentative retirement dates. 5.1 / 5.2 were never announced - no id, no date, no price. A model name seen in some console is not release evidence.