Claude Sonnet 4 5 20250929 V1 0 is listed in the o10 fulfillment catalog as of 2026-06-27. Anthropic publishes this model without a published context window in this snapshot. o10 lists Claude Sonnet 4 5 20250929 V1 0 on AWS Bedrock at routing band C2. API slug anthropic-claude-sonnet-4-5-20250929-v1-0. Verify list prices against the venue you.
Last updated: 2026-06-27. Full catalog. Reference prices are dated snapshots. Compare total cost and measured task quality before choosing a route.
Claude Sonnet 4 5 20250929 V1 0 is a chat model from anthropic (slug: anthropic-claude-sonnet-4-5-20250929-v1-0). Pick Claude Sonnet 4 5 20250929 V1 0 when you need Anthropic's mid-frontier coding and writing tier. It is the default Claude workhorse: cheaper than Opus, stronger than Haiku on long-context agent work.
Catalog snapshot 2026-06-27.
Pick Claude Sonnet 4 5 20250929 V1 0 when you need Anthropic's mid-frontier coding and writing tier. It is the default Claude workhorse: cheaper than Opus, stronger than Haiku on long-context agent work. Claude Sonnet 4 5 20250929 V1 0 sits between Claude Haiku (economy) and Claude Opus (flagship). Move down to Haiku when evals pass at C0/C1; move up to Opus only when the quality floor needs the extra reasoning.
Claude Sonnet 4 5 20250929 V1 0 sits between Claude Haiku (economy) and Claude Opus (flagship). Move down to Haiku when evals pass at C0/C1; move up to Opus only when the quality floor needs the extra reasoning.
Claude Sonnet 4 5 20250929 V1 0 does not have published per-token pricing in the current gateway snapshot. See fulfillment hosts below for routing options.
Pricing unavailable in current snapshot.
Claude Sonnet 4 5 20250929 V1 0 is configured on AWS Bedrock. Known host IDs: bedrock: bedrock/anthropic.claude-sonnet-4-5-20250929-v1:0. This model is routable through o10 eval-gated routing.
Claude Sonnet 4 5 20250929 V1 0 context limits depend on the fulfillment host. Check the specifications table for endpoint-specific limits.
Claude Sonnet 4 5 20250929 V1 0 is classified at o10 routing band C2. Bands group models by cost tier and eval profile: C0 (economy), C1 (standard), C2 (capable), C3/C4 (frontier). Production routing is enabled for this slug.
Claude Sonnet 4 5 20250929 V1 0 is attributed to source provider anthropic in the o10 catalog. Fulfillment hosts (AWS Bedrock) supply API access; list pricing may differ by venue.
Claude Sonnet 4 5 20250929 V1 0 in the o10 unified catalog.
| Field | Value |
|---|---|
| o10 slug | `anthropic-claude-sonnet-4-5-20250929-v1-0` |
| Type | text |
| Band | C2 |
| Routable | Yes |
| Source provider | anthropic |
| Primary host | AWS Bedrock |
Upstream venues configured for Claude Sonnet 4 5 20250929 V1 0.
| Host | Upstream model ID |
|---|---|
| bedrock | bedrock/anthropic.claude-sonnet-4-5-20250929-v1:0 |
Eval-gated model selection for this slug.
o10 slug: anthropic-claude-sonnet-4-5-20250929-v1-0. Band: C2. Routable: yes.
See [/models/routing](/models/routing) for smart aliases (o10/auto, o10/frontier, o10/squad) and [/kyi](/kyi) for governance.
Fulfillment catalog 2026-06-27. Gateway pricing joined where slug match exists.
Claude Sonnet 4 5 20250929 V1 0 has no published per-token price in the current gateway snapshot. Use the fulfillment hosts table to identify available venues.
Context limits for Claude Sonnet 4 5 20250929 V1 0 vary by fulfillment host. See the specifications table on this page.
Claude Sonnet 4 5 20250929 V1 0 (anthropic-claude-sonnet-4-5-20250929-v1-0) is configured on: AWS Bedrock. Upstream model IDs are listed in the fulfillment routes section.
Yes. Claude Sonnet 4 5 20250929 V1 0 is routable at band C2. Send model: "anthropic-claude-sonnet-4-5-20250929-v1-0" or use an o10 smart routing alias.
Use o10 slug "anthropic-claude-sonnet-4-5-20250929-v1-0" in the model field. See /models/routing for smart aliases (o10/auto, o10/frontier, o10/squad).
o10 routes Claude Sonnet 4 5 20250929 V1 0 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.