Claude Sonnet 4 costs $3.00/1M input tokens and $15.00/1M output tokens as of 2026-06-27. Anthropic publishes this model with a 1M tokens context window. o10 lists Claude Sonnet 4 on OpenRouter at routing band C2.

Last updated: 2026-06-27. Full catalog

Claude Sonnet 4 pricing — input/output per 1M tokens

AnswersSelf-contained

How much does Claude Sonnet 4 cost per million tokens?

Claude Sonnet 4 costs $3.00/1M input tokens and $15.00/1M output tokens in the gateway catalog snapshot (2026-06-27). Endpoint pricing may differ by fulfillment host.

Sourced from gateway catalog snapshot.

Where can you run Claude Sonnet 4?

Claude Sonnet 4 is configured on OpenRouter. Each host maps to an upstream model ID listed in the fulfillment routes table. This model is routable through o10 eval-gated routing.

What is Claude Sonnet 4's context window?

Claude Sonnet 4 supports a 1M tokens context window in the gateway catalog snapshot. Context limits may vary by fulfillment host endpoint.

01Deep dive

Token pricing

Gateway snapshot pricing for Claude Sonnet 4.

Claude Sonnet 4 token pricing
UnitPrice
Input$3/1M tokens
Output$15/1M tokens
02Deep dive

Fulfillment hosts

Upstream venues configured for Claude Sonnet 4.

Claude Sonnet 4 fulfillment routes
HostUpstream model ID
openrouteropenrouter/anthropic/claude-sonnet-4
03Deep dive

Routing with o10

Eval-gated model selection for this slug.

o10 slug: anthropic-claude-sonnet-4. Band: C2. Routable: yes.

See [/models/routing](/models/routing) for smart aliases (o10/auto, o10/frontier, o10/squad) and [/kyi](/kyi) for governance.

SourceMethodology

Gateway catalog snapshot 2026-06-27. Fulfillment catalog synced from o10 control plane. Verify list prices against anthropic and host providers.

FAQFrequently asked questions

Common questions

How much does Claude Sonnet 4 cost?

Claude Sonnet 4 costs $3.00/1M input tokens and $15.00/1M output tokens in the gateway snapshot (2026-06-27). Verify against your provider's published pricing.

What is Claude Sonnet 4's context window?

Claude Sonnet 4 supports 1M tokens in the gateway catalog snapshot. Host-specific endpoints may differ.

Which hosts serve Claude Sonnet 4?

Claude Sonnet 4 (anthropic-claude-sonnet-4) is configured on: OpenRouter. Upstream model IDs are listed in the fulfillment routes section.

Is Claude Sonnet 4 routable through o10?

Yes. Claude Sonnet 4 is routable at band C2. Send model: "anthropic-claude-sonnet-4" or use an o10 smart routing alias.

How do I call Claude Sonnet 4 via o10?

Use o10 slug "anthropic-claude-sonnet-4" or gateway ID "anthropic/claude-sonnet-4" depending on your integration. Gateway-compatible endpoints accept OpenAI-style /v1 requests.

How does o10 route this model?

o10 routes Claude Sonnet 4 only when per-use-case evals clear at your quality floor. Band C2 indicates cost tier. See /kyi for governance and /models/routing for smart aliases.

What is the API model ID for Claude Sonnet 4?

The o10 slug is "anthropic-claude-sonnet-4"; the unified gateway ID is "anthropic/claude-sonnet-4". Pricing snapshot date: 2026-06-27.