A specialist pilot candidate when general safeguards block legitimate security work. Choose the tier around authorised actions, identity and retention before requesting access. The expanded CVP route supersedes the older Glasswing-only description; actual UK entitlement is not established. Independent same-task testing remains pending and no HubAI Score is assigned.
BEST FORVerified security professionals evaluating authorised defensive work; broader or safety-system testing requires a suitable CVP tierNOT IDEAL FORVerification, route-specific provisioning and UK eligibility remain conditions of access
No sign-in needed. Rate your experience; you can change your vote.
Price
Published base API rates: $10 per 1M input tokens and $50 per 1M output tokens. Programme approval does not include free usage or establish a complete CVP price; cloud contracts and application-plan billing need separate confirmation · Profile record only; separate pricing check not recorded: 7 October 2026. USD list price; UK price/VAT to confirm.
Access
No unrestricted public trial. CVP application and provisioning are required; individuals can apply only for Defense Access on a paid plan. UK account and route eligibility must be confirmed
EDITORIAL PROFILEIndependently structuredPRICING CHECKSeparate check not recordedDISCLOSURENo pay-to-win scoreEVIDENCE CONFIDENCELow · independent test pending
BEFORE YOU BUY
Claude Mythos 5.1: evidence before purchase
Independent test pending
What we can verify
Not yet scored. No completed HubAI same-task test record is published. The supplier information below is separate from independent test results.
What an independent test needs to cover
Test output accuracy, retries, reviewer effort, data handling and total cost using the pilot below. No completion date is scheduled; a score will require a published method and results.
Supplier facts recorded
7 October 2026
Within 30-day review window. This is not an independent test date.
Methodology checked on
Price and UK access check
Published base API rates: $10 per 1M input tokens and $50 per 1M output tokens. Programme approval does not include free usage or establish a complete CVP price; cloud contracts and application-plan billing need separate confirmation · Profile record only; separate pricing check not recorded: 7 October 2026. USD list price; UK price/VAT to confirm.
Claude expands verified cyber access into three tiers
Approval does not establish UK entitlement, free usage, client-facing productization permission or independent safety. Identity readiness and retention determine deployment fit.
A specialist pilot candidate when general safeguards block legitimate security work. Choose the tier around authorised actions, identity and retention before requesting access. The expanded CVP route supersedes the older Glasswing-only description; actual UK entitlement is not established. Independent same-task testing remains pending and no HubAI Score is assigned.
WHAT IT IS
Claude Mythos 5.1, explained.
Claude Mythos 5.1 is designed for verified security professionals evaluating authorised defensive work; broader or safety-system testing requires a suitable cvp tier. 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 forVerified security professionals evaluating authorised defensive work; broader or safety-system testing requires a suitable CVP tierTrialNo unrestricted public trial. CVP application and provisioning are required; individuals can apply only for Defense Access on a paid plan. UK account and route eligibility must be confirmed
60-SECOND BUYING DECISION
Where Claude Mythos 5.1 fits—and where it does not.
BUY FOR
Verified security professionals evaluating authorised defensive work; broader or safety-system testing requires a suitable CVP tier
MEASURE
accepted tasks completed with reliable tool use, bounded latency and a predictable total token bill
MAIN TRADE-OFF
Verification, route-specific provisioning and UK eligibility remain conditions of access
PROOF TEST
Use a fixed 20-task set containing routine, ambiguous, long-context and deliberate failure cases.
PRODUCT PROOF
See the workflow before you buy.
PROFILE REVIEW · 7 OCTOBER 2026
M5Official Mythos 5.1 model overview and CVP application guide; published API identifier claude-mythos-5-1, 1M context and 128K maximum output
01
Bring one representative input
02
Run the same job three times
03
Measure accepted output and cost
DATA & PRIVACY
CVP normally retains traffic for misuse monitoring. Individual grants do not support zero data retention; existing eligible organisational exemptions and the planned Enterprise Frontier Safeguards route have separate terms. Confirm actual retention, reviewers and processing region before using incident data.
DEPLOYMENT
Verified CVP access through approved first-party, cloud or supported third-party routes. Specialized Access is unavailable through third-party platforms. Confirm UK eligibility, linked accounts, assigned workspace/role and actual model provisioning; no universal UK entitlement is established.
WORKS WITH
Cyber Verification Program · Claude API · Claude Code · Approved cloud routes
EDITORIAL STATUS
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 FORVerified security professionals evaluating authorised defensive work; broader or safety-system testing requires a suitable CVP tierCOMMERCIAL ROUTEPublished base API rates: $10 per 1M input tokens and $50 per 1M output tokens. Programme approval does not include free usage or establish a complete CVP price; cloud contracts and application-plan billing need separate confirmation · Profile record only; separate pricing check not recorded: 7 October 2026. USD list price; UK price/VAT to confirm.No unrestricted public trial. CVP application and provisioning are required; individuals can apply only for Defense Access on a paid plan. UK account and route eligibility must be confirmedTEST PENDING
DATA & PRIVACYNeeds buyer verification
CVP normally retains traffic for misuse monitoring. Individual grants do not support zero data retention; existing eligible organisational exemptions and the planned Enterprise Frontier Safeguards route have separate terms. Confirm actual retention, reviewers and processing region before using incident data.
DEPLOYMENTRoute mapped
Verified CVP access through approved first-party, cloud or supported third-party routes. Specialized Access is unavailable through third-party platforms. Confirm UK eligibility, linked accounts, assigned workspace/role and actual model provisioning; no universal UK entitlement is established.
INTEGRATIONS4 named routes
Cyber Verification Program · Claude API · Claude Code · Approved cloud routes
PROOF TESTRequired before scale
Verify the approved tier, target authorisation, UK route, paid-plan or API billing, retention and incident owner. Prepare phishing-resistant MFA and short-lived identities, then compare accepted findings, analyst time, failure recovery and complete billed cost on a frozen authorised task set. Test pending; no score.
INDEPENDENT TEST PENDING
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.
STRENGTHS
What earns its shortlist place.
+01
Defined Defense, Red Team and Specialized Access scopes provide a clearer security application route
Why it matters: reduces time per accepted complex task.
+02
Published model identifier and base token rates support a reproducible cost estimate
Why it matters: supports larger source or code contexts.
+03
Documented security requirements make identity and operational readiness reviewable
Why it matters: gives technical teams more control over quality and spend.
LIMITATIONS
What can break the business case.
−01
Verification, route-specific provisioning and UK eligibility remain conditions of access
Buyer impact: can make headline token prices misleading.
−02
Retention is normally required; individual grants do not offer zero data retention
Buyer impact: creates migration and regression-test work.
−03
Stricter tiers require additional identity, device and network controls; approval is not independent evidence of safety
Buyer impact: requires operational monitoring beyond a chat demo.
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.
PRICING DECODER
Budget for the result, not the plan badge.
Published structure
Published base API rates: $10 per 1M input tokens and $50 per 1M output tokens. Programme approval does not include free usage or establish a complete CVP price; cloud contracts and application-plan billing need separate confirmation · Profile record only; separate pricing check not recorded: 7 October 2026. USD list price; UK price/VAT to confirm.
Free or trial route
No unrestricted public trial. CVP application and provisioning are required; individuals can apply only for Defense Access on a paid plan. UK account and route eligibility must be confirmed
Record the total cost, attempts and human correction needed to produce ten accepted results.
Separate pricing check date: not recorded. Profile review: 7 October 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£3.414286Human review dominates
Test this job with your own inputs and judge the finished result—not the first draft.
02
Run multi-file refactoring with deterministic tool calls
Test this job with your own inputs and judge the finished result—not the first draft.
03
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 Mythos 5.1'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.
READY-TO-USE PROMPTS
Start with a better brief.
01Act as a specialist in model ai. Ask me three questions before creating the first draft. The outcome I need is: [describe outcome].
02Create two approaches for [task]. Use this audience: [audience]. Respect these constraints: [constraints]. Explain the trade-off between the two approaches.
03Review 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 Mythos 5.1 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.
HUBAI REVIEW RECORD
What HubAI checked—and when.
This is HubAI's editorial record, not the vendor's product changelog or a live uptime claim.
04 SEP 2026
Decision layer expanded
Use-case routes, relevant comparisons and alternatives connected to the product profile.
03 SEP 2026
Commercial profile reviewed
Entry price structure, free or trial route and buyer limitations checked for editorial use.
02 SEP 2026
Editorial profile published
Verdict, best fit, strengths, limitations, prompts and governance questions structured.
Verified security professionals evaluating authorised defensive work; broader or safety-system testing requires a suitable CVP tier
Published base API rates: $10 per 1M input tokens and $50 per 1M output tokens. Programme approval does not include free usage or establish a complete CVP price; cloud contracts and application-plan billing need separate confirmation · Profile record only; separate pricing check not recorded: 7 October 2026. USD list price; UK price/VAT to confirm.
No unrestricted public trial. CVP application and provisioning are required; individuals can apply only for Defense Access on a paid plan. UK account and route eligibility must be confirmed
A measured pilot of long-context coding or reasoning through Meta's hosted API
USD per million tokens: $4 input, $0.20 cached input, $20 output. Web grounding adds $2.50 per 1,000 search queries; no long-context premium is listed. · Recorded check: 14 October 2026. USD list price; UK price/VAT to confirm.
Paid preview API or Muse Code subscription. No unmetered free trial or UK-specific entitlement verified.
Evaluating the higher-capability Muse model inside an eligible coding subscription
Muse Code Power Usage $50/month or Maximum $200/month, USD list prices. These are subscription prices, not Full API token rates. · Recorded check: 14 October 2026. USD list price; UK price/VAT to confirm.
Subscription-only route; no public pay-as-you-go API or unmetered trial verified. Confirm UK account eligibility before paying.
Narrow, repeated classification, extraction, routing, compaction and subagent work with measured acceptance rules
USD per million tokens: prompts up to 100K input $0.10/output $0.50; above 100K input $0.50/output $2.50. Cache reads $0.01/$0.05; five-minute writes $0.125/$0.625. Cloud routing, tools and taxes can differ. · Recorded check: 8 October 2026. USD list price; UK price/VAT to confirm.
Metered API access; no unmetered free trial verified. Eligible Max/Team API credits have separate rollout, eligibility and expiry rules. UK account and regional provisioning must be confirmed.
02Can administrators control retention and model training?
03What happens when a tool call fails?
04Can usage, latency and cost be exported?
COMMON BUYER QUESTIONS
Claude Mythos 5.1 FAQ.
What is Claude Mythos 5.1 best for?
Claude Mythos 5.1 is best suited to verified security professionals evaluating authorised defensive work; broader or safety-system testing requires a suitable cvp tier. HubAI's current verdict is: A specialist pilot candidate when general safeguards block legitimate security work. Choose the tier around authorised actions, identity and retention before requesting access. The expanded CVP route supersedes the older Glasswing-only description; actual UK entitlement is not established. Independent same-task testing remains pending and no HubAI Score is assigned.
Does Claude Mythos 5.1 have a free plan or trial?
No unrestricted public trial. CVP application and provisioning are required; individuals can apply only for Defense Access on a paid plan. UK account and route eligibility must be confirmed. Check the official product page before buying because allowances, regions and eligibility can change.
How much does Claude Mythos 5.1 cost?
Published base API rates: $10 per 1M input tokens and $50 per 1M output tokens. Programme approval does not include free usage or establish a complete CVP price; cloud contracts and application-plan billing need separate confirmation · Profile record only; separate pricing check not recorded: 7 October 2026. USD list price; UK price/VAT to confirm.. 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 Mythos 5.1?
Compare products in the same Model AI shelf against one identical task, acceptance rule and cost window. Focus on accepted tasks completed with reliable tool use, bounded latency and a predictable total token bill.
MODERATED COMMUNITY REVIEWS
Did you like Claude Mythos 5.1?
Rate this product and share what really happened. Every review is moderated before it appears publicly. Approval does not independently verify purchase, usage or the reported outcome.
HubAI asks
Did this product earn its cost?
If you used Claude Mythos 5.1, share its quality, pricing, trial experience and real result. Useful specifics beat empty praise.