Claude Sonnet 4.5 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 4.5 on Anthropic at routing band C4.
Last updated: 2026-06-27. Full catalog
Claude Sonnet 4.5 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.
Claude Sonnet 4.5 is configured on Anthropic. Each host maps to an upstream model ID listed in the fulfillment routes table. This model is routable through o10 eval-gated routing.
Claude Sonnet 4.5 supports a 1M tokens context window in the gateway catalog snapshot. Context limits may vary by fulfillment host endpoint.
Gateway snapshot pricing for Claude Sonnet 4.5.
| Unit | Price |
|---|---|
| Input | $3/1M tokens |
| Output | $15/1M tokens |
Upstream venues configured for Claude Sonnet 4.5.
| Host | Upstream model ID |
|---|---|
| anthropic | anthropic/claude-sonnet-4-5 |
Eval-gated model selection for this slug.
o10 slug: claude-sonnet-4.5. Band: C4. Routable: yes.
See [/models/routing](/models/routing) for smart aliases (o10/auto, o10/frontier, o10/squad) and [/kyi](/kyi) for governance.
Gateway catalog snapshot 2026-06-27. Fulfillment catalog synced from o10 control plane. Verify list prices against anthropic and host providers.
Claude Sonnet 4.5 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.
Claude Sonnet 4.5 supports 1M tokens in the gateway catalog snapshot. Host-specific endpoints may differ.
Claude Sonnet 4.5 (claude-sonnet-4.5) is configured on: Anthropic. Upstream model IDs are listed in the fulfillment routes section.
Yes. Claude Sonnet 4.5 is routable at band C4. Send model: "claude-sonnet-4.5" or use an o10 smart routing alias.
Use o10 slug "claude-sonnet-4.5" or gateway ID "anthropic/claude-sonnet-4.5" depending on your integration. Gateway-compatible endpoints accept OpenAI-style /v1 requests.
o10 routes Claude Sonnet 4.5 only when per-use-case evals clear at your quality floor. Band C4 indicates cost tier. See /kyi for governance and /models/routing for smart aliases.
The o10 slug is "claude-sonnet-4.5"; the unified gateway ID is "anthropic/claude-sonnet-4.5". Pricing snapshot date: 2026-06-27.