Anthropic releases Claude Opus 5.5
Long-running agent teams may reduce token rates, but forced tools, thinking blocks and older computer-use integrations need retesting.
Anthropic Claude Opus 5.5 launch ↗O5.5
Model AI · PROFILE REVIEWED 23 SEPTEMBER 2026
Claude Opus 5.5
A lower-priced Opus route with a 1M context window and always-on adaptive thinking. It is a credible long-agent candidate, but orchestration behaviour and provider claims require a same-work migration test, so HubAI withholds a score.
BEST FORLong-running agentic coding and professional knowledge work where migration changes can be tested before productionNOT IDEAL FORAdaptive thinking cannot be disabled and forced tool use can return an error
Be the first verified reviewer0 approved reviewsHUBAI DECISION SIGNAL
NEWTest pending
- Price
- $4/1M input and $20/1M output at standard API rates; cache reads cost $0.20/1M, five-minute writes $5/1M and one-hour writes $8/1M; Fast mode is $8/$40
- Access
- Paid API and cloud-platform access; availability across Claude plans varies by entitlement and route
VERIFIED CHANGE HISTORY
Open Change Radar →What changed for Claude Opus 5.5.
EDITOR VERDICT
A lower-priced Opus route with a 1M context window and always-on adaptive thinking. It is a credible long-agent candidate, but orchestration behaviour and provider claims require a same-work migration test, so HubAI withholds a score.
Claude Opus 5.5, explained.
Claude Opus 5.5 is designed for long-running agentic coding and professional knowledge work where migration changes can be tested before production. HubAI treats it as a workflow purchase rather than a novelty: the relevant question is whether it produces an acceptable result repeatedly, with controls your team can understand and a cost that remains predictable after the trial ends.
Best forLong-running agentic coding and professional knowledge work where migration changes can be tested before productionTrialPaid API and cloud-platform access; availability across Claude plans varies by entitlement and route
Where Claude Opus 5.5 fits—and where it does not.
Long-running agentic coding and professional knowledge work where migration changes can be tested before production
accepted, tested code changes with lower cycle time and no increase in escaped defects
Adaptive thinking cannot be disabled and forced tool use can return an error
Assign the same bounded repository change with tests and security checks.
PRODUCT PROOF
PROFILE UPDATED · 23 SEPTEMBER 2026See the workflow before you buy.
01
Bring one representative input
02
Run the same job three times
03
Measure accepted output and cost
Verify retention, model-improvement, regional processing, zero-data-retention eligibility, administrator settings and logging for the exact Anthropic, AWS, Google Cloud or Microsoft Foundry route. Do not infer that controls are identical across providers.
Claude API model claude-opus-5-5 with a one-million-token context window, 128K maximum output and adaptive thinking that cannot be disabled. Also listed through AWS, Google Cloud and Microsoft Foundry. Forced tool use and the older computer-use tool require migration checks.
Claude API · AWS Bedrock · Google Cloud · Microsoft Foundry · Claude Code · Tool and computer-use workflows
Vendor facts and HubAI opinion are separated. Sponsored placement cannot buy a higher score.
HUBAI PROCUREMENT PASSPORT
A buying record your team can challenge.
One compact record for price, access, data handling, deployment and the test that must pass before adoption.
BUY FORLong-running agentic coding and professional knowledge work where migration changes can be tested before productionCOMMERCIAL ROUTE$4/1M input and $20/1M output at standard API rates; cache reads cost $0.20/1M, five-minute writes $5/1M and one-hour writes $8/1M; Fast mode is $8/$40Paid API and cloud-platform access; availability across Claude plans varies by entitlement and routeTEST PENDING
Verify retention, model-improvement, regional processing, zero-data-retention eligibility, administrator settings and logging for the exact Anthropic, AWS, Google Cloud or Microsoft Foundry route. Do not infer that controls are identical across providers.
Claude API model claude-opus-5-5 with a one-million-token context window, 128K maximum output and adaptive thinking that cannot be disabled. Also listed through AWS, Google Cloud and Microsoft Foundry. Forced tool use and the older computer-use tool require migration checks.
Claude API · AWS Bedrock · Google Cloud · Microsoft Foundry · Claude Code · Tool and computer-use workflows
Pin Opus 5.5 in a test environment and replay representative long-running workflows. Record accepted tasks, thinking and tool orchestration changes, unsupported output, computer-use compatibility, cache use, latency, reviewer minutes and complete billed cost.
No launch-day score.
HubAI will publish a score only after the same representative tasks have been run against current alternatives. Vendor benchmarks are not treated as an editorial rating.
Cost reality
The subscription price is only the starting point. HubAI evaluates usage limits, failed attempts and the work needed to produce one usable result. Pricing changes frequently, so the structure and verification date matter more than a headline price.
Budget for the result, not the plan badge.
- Published structure
- $4/1M input and $20/1M output at standard API rates; cache reads cost $0.20/1M, five-minute writes $5/1M and one-hour writes $8/1M; Fast mode is $8/$40
- Free or trial route
- Paid API and cloud-platform access; availability across Claude plans varies by entitlement and route
- Primary cost driver
- seat price, premium requests, agent runs and reviewer correction time
- Budget test
- Record the total cost, attempts and human correction needed to produce ten accepted results.
Pricing checked for editorial use on 23 September 2026. Confirm live price, VAT, region, usage rights and cancellation terms with the vendor before purchase.
HUBAI TRUE COST LAB
What does one accepted result really cost?
Model your own usage. HubAI separates subscription cost from retries and human review—without pretending a headline plan price tells the whole story.
DERIVED VALUE · EFFECTIVE COST / ACCEPTED OUTPUT£3.41Human review dominates
PRACTICAL GUIDE
Where Claude Opus 5.5 earns its place.
Build and test a long-running coding agent
Test this job with your own inputs and judge the finished result—not the first draft.
Run multi-file refactoring with deterministic tool calls
Test this job with your own inputs and judge the finished result—not the first draft.
Evaluate a complex enterprise workflow against cost and latency
Test this job with your own inputs and judge the finished result—not the first draft.
A safer four-step trial
- Start with one narrow job that matches Claude Opus 5.5's strongest use case.
- Prepare approved source material, examples and a clear acceptance standard.
- Run three realistic tasks and record attempts, correction time and export quality.
- Keep human approval before publishing, sending or acting on the result.
Start with a better brief.
01
Act as a specialist in model ai. Ask me three questions before creating the first draft. The outcome I need is: [describe outcome].02
Create two approaches for [task]. Use this audience: [audience]. Respect these constraints: [constraints]. Explain the trade-off between the two approaches.03
Review this output against accuracy, tone, privacy, cost and usability. List the changes required before a person should approve it.RISK & GOVERNANCE
What to check before adoption.
Do not place confidential, personal or rights-restricted material into Claude Opus 5.5 until your organisation has reviewed its current terms, retention settings and account controls. AI output can be plausible and still wrong; regulated, financial, legal and employment decisions require qualified human review.
What HubAI checked—and when.
This is HubAI's editorial record, not the vendor's product changelog or a live uptime claim.
Decision layer expanded
Use-case routes, relevant comparisons and alternatives connected to the product profile.
Commercial profile reviewed
Entry price structure, free or trial route and buyer limitations checked for editorial use.
Editorial profile published
Verdict, best fit, strengths, limitations, prompts and governance questions structured.
Alternatives to Claude Opus 5.5
S6GPT-6 SolTest pending
Complex coding, agentic and professional tasks where higher accepted-task quality can justify a premium over a volume model
L6GPT-6 LunaTest pendingHigh-volume extraction, classification, transformation and first-pass agent work that needs low token cost and a large context window
G4.7Grok 4.7Test pendingLong-context coding, agentic tool use and knowledge work where teams can run a controlled same-task evaluation
Claude Opus 5.5 against its closest shelf.
Scores are editorial signals, not a universal winner. Choose around the exact job and run the same proof test.
| Product | HubAI score | Best for | Price structure | Access | Decision |
|---|---|---|---|---|---|
| Claude Opus 5.5 CURRENT | Test pending | Long-running agentic coding and professional knowledge work where migration changes can be tested before production | $4/1M input and $20/1M output at standard API rates; cache reads cost $0.20/1M, five-minute writes $5/1M and one-hour writes $8/1M; Fast mode is $8/$40 | Paid API and cloud-platform access; availability across Claude plans varies by entitlement and route | Current profile |
| GPT-6 Sol | Test pending | Complex coding, agentic and professional tasks where higher accepted-task quality can justify a premium over a volume model | $2/1M input, $0.20/1M cached input, $2.50/1M cache write and $10/1M output at standard API rates; requests above 272K input use higher rates | Metered API access; gradual availability in ChatGPT Work and Codex for eligible paid, Business, Enterprise and Edu plans, plus selected paid GitHub Copilot plans | Compare → |
| GPT-6 Luna | Test pending | High-volume extraction, classification, transformation and first-pass agent work that needs low token cost and a large context window | $0.10/1M input, $0.01/1M cached input, $0.125/1M cache write and $0.50/1M output at standard API rates; requests above 272K input use higher rates | Metered API access; gradual rollout through ChatGPT Work, Codex and eligible GitHub Copilot plans, with Luna desktop access announced for Free and Go users | Compare → |
| Grok 4.7 | Test pending | Long-context coding, agentic tool use and knowledge work where teams can run a controlled same-task evaluation | $2/1M input and $6/1M output tokens on the standard xAI API; the US regional endpoint adds 10%, while the Fast route in Cursor and Grok Build uses higher rates | Grok Build has a free starting route; public API use is metered. GitHub Copilot access requires an eligible paid plan and is rolling out gradually | Compare → |
Questions to answer before adoption.
- 01What repository data is retained or used for training?
- 02Can policies block secrets and unsafe commands?
- 03Which IDE and Git workflows are supported?
- 04How much reviewer time does an accepted change need?
Claude Opus 5.5 FAQ.
What is Claude Opus 5.5 best for?
Claude Opus 5.5 is best suited to long-running agentic coding and professional knowledge work where migration changes can be tested before production. HubAI's current verdict is: A lower-priced Opus route with a 1M context window and always-on adaptive thinking. It is a credible long-agent candidate, but orchestration behaviour and provider claims require a same-work migration test, so HubAI withholds a score.
Does Claude Opus 5.5 have a free plan or trial?
Paid API and cloud-platform access; availability across Claude plans varies by entitlement and route. Check the official product page before buying because allowances, regions and eligibility can change.
How much does Claude Opus 5.5 cost?
$4/1M input and $20/1M output at standard API rates; cache reads cost $0.20/1M, five-minute writes $5/1M and one-hour writes $8/1M; Fast mode is $8/$40. The useful comparison is total cost per accepted result, including retries, limits and human correction—not the advertised entry price alone.
What should I compare with Claude Opus 5.5?
Compare products in the same Code AI shelf against one identical task, acceptance rule and cost window. Focus on accepted, tested code changes with lower cycle time and no increase in escaped defects.
VERIFIED COMMUNITY SIGNAL
Did you like Claude Opus 5.5?
Rate this product and share what really happened. Every review is checked before it appears publicly.
HubAI asks
Did this product earn its cost?
If you used Claude Opus 5.5, share its quality, pricing, trial experience and real result. Useful specifics beat empty praise.
Sign in to leave a rating and review.
Sign in to reviewNo approved user reviews yet. Be the first to leave a useful one.