Claude Haiku 5.5 status tracker: what is official and what is not
Anthropic has twice said Haiku 5.5 will join the Claude 5.5 family «in the coming weeks»: first on the Opus 5.5 launch page of 2026-09-22, then on the Sonnet 5.5 launch page of 2026-09-28. Price, context window and model id are unpublished, and this page does not guess them.
Updated 2026-09-29
Four key points
Official release date
As of 2026-09-29 Anthropic has given Haiku 5.5 no official date, only «coming weeks» twice. This page does not guess one.
Price and specs
Unit price, context window and model id for Haiku 5.5 are unpublished. The only checkable figures are for the shipping Haiku 4.5: $1/$5 and 200K/64K.
What Anthropic said
Twice, both saying «in the coming weeks», but in different words: the 2026-09-22 sentence only promises Sonnet 5.5 and Haiku 5.5 will follow, while the 2026-09-28 sentence is the one that calls it built for high-volume and cost-sensitive applications. Both quoted with their dates.
Haiku 4.5 calls, trailing 30 days
In the internal QCode usage record captured 2026-09-29, claude-haiku-4-5-20251001 shows 139,341 calls over thirty days. It is used here only to say the tier in stock is actually used, not as a service-quality promise.
What is known and what is not
Known: the role line and «coming weeks». Not known: four specific things — price, context length, model id and release date. The page keeps the two apart on purpose, because someone searching «haiku 5.5 price» needs checkable figures, not Haiku 4.5's table renamed. The nearest verifiable item today is Haiku 4.5: $1 input / $5 output, 200K context and 64K maximum output.
Two «coming weeks», six days apart
The Opus 5.5 launch page of 2026-09-22 says: "Claude Sonnet 5.5 and Claude Haiku 5.5 will follow in the coming weeks, with many of the same improvements to performance, efficiency, and safety." Six days later Sonnet 5.5 shipped and its own page left another line: "Claude Haiku 5.5, built for high-volume and cost-sensitive applications, will join the Claude 5.5 family in the coming weeks." As of 2026-09-29 Haiku 5.5 is still unreleased and no official date exists.
Public timeline
On 2026-09-22 the Opus 5.5 launch page first wrote that Sonnet 5.5 and Haiku 5.5 «will follow in the coming weeks». It is the first time Haiku 5.5 appears in Anthropic's 5.5-family wording: no date and no price attached.
On 2026-09-28 Sonnet 5.5 shipped, and its launch page supplied Haiku 5.5's role line (high-volume and cost-sensitive applications) while saying for the second time that it «will join the Claude 5.5 family in the coming weeks».
Check date: re-checked against the official pages on 2026-09-29, Haiku 5.5 remains unreleased and undated; the item actually on sale here is Haiku 4.5 (claude-haiku-4-5-20251001), recorded at 139,341 calls over the trailing thirty days.
Confirmed vs unverified
Confirmed (official wording)
Confirmed by the official pages, two statements only: Haiku 5.5 is built for high-volume and cost-sensitive applications, and it will join the Claude 5.5 family «in the coming weeks» — the two official sentences are not the same: the 2026-09-22 one only promises they will follow, while the 2026-09-28 one supplies the role wording. Confirmed on the other side is today's shipping item: Claude Haiku 4.5 lists $1 input / $5 output with $0.10 cache reads (5-minute writes $1.25, 1-hour $2) in the price table, 200K context and 64K maximum output in the model document, and Not sooner than October 15, 2026 in the deprecation table.
Unverified · nothing carried
As of 2026-09-29, four things stay off this page: Haiku 5.5's price, context length, model id and release date — all four are unpublished by Anthropic. Rumour-line claims such as «it will keep Haiku 4.5 pricing» or «it ships in month X» have no primary source, so they are not carried here. To budget, price against the published Haiku 4.5 table instead of treating chatter as a quote.
Two Haiku generations
Haiku 4.5 (published) vs Haiku 5.5 (unpublished)
Haiku 4.5: $1 input, $5 output, $0.10 cache reads, 200K context, 64K maximum output, callable on QCode. Haiku 5.5: the official wording is only «high-volume and cost-sensitive applications» plus «coming weeks»; price, context, id and date are unpublished, so that column stays empty rather than estimated.
Official deprecation wording vs a shutdown date
The deprecation table says Not sooner than October 15, 2026 for the Haiku 4.5 row. That is a floor, not a shutdown date on 15 October: this page does not turn a floor into a promise, nor infer that Haiku 5.5 must appear before it.
How to choose today
If you are waiting for Haiku 5.5: until Anthropic publishes, any «budget for 5.5» move has no basis — price the workload on the published Haiku 4.5 table and keep a migration slot for the real id. If the goal is simply cheap high-volume work, Haiku 4.5 is that tier today at $1/$5 with $0.10 cache reads; the official table also lists a Batch row, and this page uses only published rows rather than inventing a discount.
Where QCode stands
As of 2026-09-29 the callable Haiku tier on QCode is claude-haiku-4-5-20251001 (Haiku 4.5); this page writes no call example for an unreleased Haiku 5.5 and promises no availability date. For cheap high-volume work on QCode, that is the tier in stock today: set model to claude-haiku-4-5-20251001 and keep the rest of your Anthropic-compatible request unchanged.
Questions
When will Haiku 5.5 be released?
Anthropic has not published a date, so this page cannot give one. What is checkable are the two «coming weeks» sentences of 2026-09-22 and 2026-09-28. Any specific month is rumour, not announcement, and is not written here.
What will Haiku 5.5 cost?
Unpublished. This page does not paste Haiku 4.5's figures under a Haiku 5.5 label; it lists the published Haiku 4.5 table as it stands — $1 input, $5 output, $0.10 cache reads, $1.25 for 5-minute writes and $2 for 1-hour writes — so you can budget now.
What will the context window be?
Anthropic has published neither a context window nor a maximum output for Haiku 5.5. The shipping tier's numbers are Haiku 4.5's: 200K context and 64K maximum output (against 1M / 128K for both Sonnet 5.5 and Opus 5.5). If length is your constraint, those are the two rows worth comparing today.
Can I call it now?
Haiku 5.5 cannot — it is unreleased and no such id exists on QCode. Haiku 4.5 can: its model id is claude-haiku-4-5-20251001, which you put straight into the Anthropic-compatible endpoint. Its trailing thirty-day record on 2026-09-29 shows 139,341 calls.
Will Haiku 4.5 be retired?
The official line is Not sooner than October 15, 2026 — a floor, not a 15 October shutdown. This page keeps the wording as published instead of turning it into a cut-over date; if you are migrating, leave headroom past that floor.
Why are there no benchmarks here?
Because no primary source exists yet: the model is unreleased and Anthropic has published no figures for it. Only the two released 5.5 models have checkable official wording, and this page neither borrows from them nor fills the gap with rumour. Once Haiku 5.5 ships, this section gets rewritten from its official pages.
Sources
Anthropic's Opus 5.5 launch page (2026-09-22, the first «coming weeks» sentence), the Sonnet 5.5 launch page (2026-09-28, the second sentence plus the role wording), the official price table (the Claude Haiku 4.5 row), the model document (200K / 64K), the deprecation table (Not sooner than October 15, 2026), and this site's internal usage record captured 2026-09-29.
Run today's tier first
claude-haiku-4-5-20251001 is callable on QCode (as of 2026-09-29); when Haiku 5.5 ships this page gets updated rather than pre-committed.
Related
Claude Haiku 4.5 guide
The shipping tier's specs and prices: $1/$5 with a 200K window.
Claude Sonnet 5.5: the full guide
The 5.5-family model that already shipped: $2/$10 and 1M context, used here as the comparison point.
Claude Opus 5.5 guide
The first model of the 5.5 family to ship: Anthropic wrote «in the coming weeks» for the first time on this release page.
QCode is independent of Anthropic. This page keeps two things apart: what the official pages have published (Haiku 4.5's specs, prices and the retirement floor) and what they have not (Haiku 5.5's price, context, model id and release date). The unpublished half is left empty — no rumour, and no reusing the previous generation's figures as an estimate. Internal usage numbers come from this site's 2026-09-29 record and describe availability only, never a service level.