AI Model Profile
Claude Sonnet 5
Claude Sonnet 5 is Anthropic's speed-and-intelligence balance in the Claude 5 line, with a 1M-token context window and 128K maximum output.
Before you buy
Best for: Existing Claude Sonnet 5 integrations that are not ready to migrate yet. New work should start on Claude Sonnet 5.5, which has the same $2/$10 price.
Price: USD API: US$2 input / US$10 output per 1M tokens
Included: Claude Sonnet 5 is Anthropic's speed-and-intelligence balance in the Claude 5 line, with a 1M-token context window and 128K maximum output.
Main limits: Standard token rates; caching, batch, service tier and hosted tools are separate. API access does not include a Claude app subscription or establish entitlement to a restricted model.
What Kingy showed: Related coverage: Own Your AI Stack: The Definitive Guide to Open-Source Models, Local LLMs, Hardware, and AI Sovereignty. This review does not treat that article as a new test of this exact model, plan or current release.
Buying details checked 2026-10-23 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
- Deprecated
- Context window
- 1M tokens
- Output limit
- 128K tokens
- API
- yes
- Open weights
- no
- Local/self-hosted
- no
- Pricing
- Pricing reviewed September 21, 2026. Claude API Standard: US$2 per million input tokens and US$10 per million output tokens. Anthropic made these rates permanent on August 10; the previously announced September 1 increase to US$3/US$15 was cancelled. These are API usage rates, separate from Claude subscription pricing.
- 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
Existing Claude Sonnet 5 integrations that are not ready to migrate yet. New work should start on Claude Sonnet 5.5, which has the same $2/$10 price.
Skip if
Skip for new work: Claude Sonnet 5.5 (September 28, 2026) has the same price and scores higher on every benchmark Anthropic published. Consider Haiku 4.5 if it meets the task at lower cost.
Strengths
Anthropic lists Sonnet 5 with a 1M-token context window, 128K max output, adaptive thinking, and fast comparative latency. On the Message Batches API it supports up to 300K output tokens using the output-300k-2026-03-24 beta header.
Weaknesses
Superseded by Claude Sonnet 5.5 on September 28, 2026; Anthropic now lists Sonnet 5 under legacy models. Reliable knowledge cutoff is January 2026. Extended thinking is not supported.
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 Sonnet 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
Who should consider it
Existing Claude Sonnet 5 integrations that are not ready to migrate yet. New work should start on Claude Sonnet 5.5, which has the same $2/$10 price. Claude Sonnet 5 is Anthropic's speed-and-intelligence balance in the Claude 5 line, with a 1M-token context window and 128K maximum output.
Plan, price and billing scope
USD API: US$2 input / US$10 output per 1M tokens. Claude Sonnet 5 is Anthropic's speed-and-intelligence balance in the Claude 5 line, with a 1M-token context window and 128K maximum output. Prices use the currency and billing term stated here. Where a numeric rate, region or current entitlement could not be verified, it remains explicit; no checkout was completed.
Limits that affect the decision
Standard token rates; caching, batch, service tier and hosted tools are separate. API access does not include a Claude app subscription or establish entitlement to a restricted model.
What the existing evidence shows
Related coverage: Own Your AI Stack: The Definitive Guide to Open-Source Models, Local LLMs, Hardware, and AI Sovereignty. This review does not treat that article as a new test of this exact model, plan or current release. Related workflow reading; not a demonstration of this exact product. Read the related article.
Sources and buying-review date
Buying review completed October 23, 2026. This is a source-based buying assessment. No paid product test, new generation, checkout or performance benchmark was performed. Vendor descriptions and historical examples remain distinct from independently measured results. The date does not renew the broader canonical fact ledger.
- Official source: platform.claude.com
- Official source: platform.claude.com
- Official source: www.anthropic.com
- Official source: platform.claude.com
- Related Kingy coverage
Check the official offer · Compare related options
Earlier profile, sources and dates
This older record retains its original scope. Current buying qualifications above take precedence where terms have changed.
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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
Claude API pricing checked September 21, 2026; all amounts USD per million tokens. Batch: $1 input/$5 output. Standard prompt caching: $2.50 for 5-minute writes, $4 for 1-hour writes and $0.20 for cache hits/refreshes. Standard rates apply throughout the 1M-token context window. US-only inference adds 10% to all token categories; global routing uses base rates. Tool charges can add to token costs, and partner-operated cloud prices require a separate check. Priority Tier is unavailable for Sonnet 5. Anthropic says its newer tokenizer produces approximately 30% more tokens for the same text than Sonnet 4.6, depending on content; recount workloads before estimating savings. Source review only; Kingy did not run paid requests or verify an invoice.
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 Sonnet 5, newest first.
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.