AI Model Profile
Claude Opus 5
The legacy Opus 5 hosted coding and reasoning model.
Before you buy
Best for: Teams retaining an existing Opus 5 integration with a reason to keep this legacy version.
Price: US/USD Standard API: US$5 input / US$25 output per million tokens
Included: The active legacy model has US$0.50 cache reads per million tokens; newer Opus 5.5 is separately priced.
Main limits: Do not choose the older model from a historical pass count alone. Routing, prompts and current versions differ.
What Kingy showed: The September 21 three-task coding/data comparison reports Opus 5 passing all 23 hidden checks through OpenRouter, with US$1.03 observed usage.
Buying details checked 2026-10-22 with region and currency stated above. Historical demonstrations and the broader fact ledger keep their own dates.
Check official plans · See the demonstration and disclosure · Compare these workflows
- Family
- Claude
- Release date
- Unknown
- Status
- Legacy
- Context window
- 1M tokens
- Output limit
- 128K tokens standard; up to 300K output in the Message Batches API beta with the output-300k-2026-03-24 beta header.
- API
- yes
- Open weights
- no
- Local/self-hosted
- no
- Pricing
- Claude API standard global pricing: US$5 per million input tokens and US$25 per million output tokens. Batch, caching, Fast mode and inference geography change the applicable rate. Pricing rechecked September 21, 2026; other profile claims retain their earlier dates.
- Evidence state
- Recheck due
Benchmark Caveat
Benchmarks and provider capability notes are directional, not universal rankings. Results can shift with prompts, tool use, latency targets, pricing tier, safety filters, context length, and the workload mix a real team runs.
See the linked official model, docs, model-card, or pricing source for provider-published capability notes.
Best for
Teams retaining an existing Opus 5 integration with a reason to keep this legacy version.
Skip if
Skip if Claude Sonnet 5 or Haiku 4.5 meet the task at lower cost, or if open weights are required.
Strengths
Anthropic lists Opus 5 with a 1M-token context window, 128K standard maximum output, adaptive thinking, a May 2026 reliable knowledge cutoff, and availability on the Claude API, Amazon Bedrock, Google Cloud, Microsoft Foundry, and Claude Platform on AWS.
Weaknesses
Anthropic classifies Opus 5 as legacy, says legacy models will no longer receive updates and may be deprecated, and recommends migration to Opus 5.5. Opus 5 also costs more at standard rates: $5/$25 versus Opus 5.5 at $4/$20 per million input/output tokens.
Agent suitability
Useful for agent workflows when the provider supports tool use, long context, structured outputs, or workflow-specific APIs.
Kingy AI take
Use this as a source-backed shortlist candidate, not a universal ranking. Re-check official provider docs and run a task-specific trial before production adoption.
Kingy AI Product Facts
Claude Opus 5
Current statusUnknown
- Company
- Not yet reviewed
- Primary job
- Not yet reviewed
- Audience
- Not yet reviewed
- Evidence
- Source-backed; coverage expanding
- Latest source check
- October 23, 2026
See all tracked product factsPricing, platforms, dependencies, data claims, regions, and timeline
Sources and checks
- Coverage
- 1 of 88 tracked fields currently verified
- Sources
- 1
Source-check dates apply to the tracked facts. Editorial updates elsewhere on this page may have a different date.
Plans and pricing units
Not yet structured in this Kingy record.
Where it runs
- Availability
- Not yet reviewed
Stack and integrations
- Model / provider dependencies
- Not yet reviewed
- Integrations
- Not yet reviewed
Data and regions
- Vendor data-use claim
- Not yet reviewed
- Vendor retention claim
- Not yet reviewed
- Regions
- Not yet reviewed
Launch and latest material update
- Launch
- Not yet reviewed
- Latest material update
- Not yet reviewed
Full Model Notes
Which plan is worth considering
US/USD Standard API: US$5 input / US$25 output per million tokens. The active legacy model has US$0.50 cache reads per million tokens; newer Opus 5.5 is separately priced.
Limits that affect the purchase
Do not choose the older model from a historical pass count alone. Routing, prompts and current versions differ. No ongoing free hosted entitlement is established for this route. API billing and account limits are separate from consumer chat or coding subscriptions.
What the existing demonstration shows
The September 21 three-task coding/data comparison reports Opus 5 passing all 23 hidden checks through OpenRouter, with US$1.03 observed usage. The small OpenRouter trial does not establish native Anthropic charges, general repository reliability or an advantage over Opus 5.5. This describes the dated retained Kingy record, not a new product test. See the retained Kingy demonstration.
Sources and buying-review date
Buying details checked October 22, 2026. Plan research uses current official sources; demonstration descriptions use the retained Kingy record and any captured creator chapters. No new subscription, paid generation or checkout was performed. The buying-review date does not renew every claim in the broader facts ledger.
Check official plans · Compare related workflows
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Coding notes
Use official docs and live evals before selecting this model for production coding workflows.
Reasoning notes
Provider capability notes are useful but should be validated on representative prompts and tools.
Creative notes
Use a small creative test set before standardizing outputs for brand, media, or customer-facing work.
Research notes
Track release notes and model lifecycle notices because availability and aliases can change.
API pricing notes
Rechecked September 21, 2026 against Anthropic’s pricing documentation. All amounts below are USD per million tokens. Standard global input/output: $5/$25. Batch input/output: $2.50/$12.50. Standard cache writes: $6.25 for five minutes or $10 for one hour; cache hits and refreshes: $0.50. Fast mode (research preview): $10/$50 input/output on the first-party Claude API only; unavailable with Batch. US-only inference adds a 1.1× multiplier, including cache rates. These are token rates; applicable server-tool charges are additional. Check partner-platform and negotiated pricing separately. No API call or billing test was performed.
License notes
Commercial/API terms apply unless the linked official source states otherwise.
Hardware requirements
Cloud/API model; local hardware requirements are not published as a self-hosted path.
Official Model Links
Kingy coverage
Kingy AI articles that cover Claude Opus 5, newest first.
- GuideGPT-5.6 Sol vs Claude Opus 5 vs Grok 4.6: Which Frontier AI Model Is Best in 2026?
- GuideGrok 4.6 vs Claude Opus 5: Which Model Wins?
- BlogClaude Fable 5 vs GPT-5.6 Sol Ultra vs Claude Opus 5 vs Kimi K3: The Evidence-Led Guide
- BlogOpus 5.0 vs GPT-5.6 SOL Ultra: The Definitive 2026 Comparison
- BlogClaude Opus 5: Full Specs, Benchmarks, Pricing and Model Comparisons
Model Intelligence Research Map
Use these internal paths to move from this model profile into provider pages, static comparison pages, related Kingy records, and the broader AI launch graph. These are research paths, not rankings.