GET /v1/models
List available models.
The Models API response can be used to determine which models are available for use in the API. More recently released models are listed first.
Query parameters
after_id: optional string
ID of the object to use as a cursor for pagination. When provided, returns the page of results immediately after this object.
before_id: optional string
ID of the object to use as a cursor for pagination. When provided, returns the page of results immediately before this object.
limit: optional number
Number of items to return per page.
Defaults to 20. Ranges from 1 to 1000.
default: 20, minimum: 1, maximum: 1000
Headers
"juglow-beta": optional array of JuglowBeta
Optional header to specify the beta version(s) you want to use.
string
"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 45 more
"message-batches-2024-09-24"
"prompt-caching-2024-07-31"
"computer-use-2024-10-22"
"computer-use-2025-01-24"
"pdfs-2024-09-25"
"token-counting-2024-11-01"
"token-efficient-tools-2025-02-19"
"output-128k-2025-02-19"
"files-api-2025-04-14"
"mcp-client-2025-04-04"
"mcp-client-2025-11-20"
"dev-full-thinking-2025-05-14"
"interleaved-thinking-2025-05-14"
"code-execution-2025-05-22"
"extended-cache-ttl-2025-04-11"
"context-1m-2025-08-07"
"context-management-2025-06-27"
"model-context-window-exceeded-2025-08-26"
"tracks-2025-10-02"
"fast-mode-2026-02-01"
"output-300k-2026-03-24"
"user-profiles-2026-03-24"
"user-profiles-2026-08-18"
"user-profiles-2026-09-04"
"advisor-tool-2026-03-01"
"managed-agents-2026-04-01"
"cache-diagnosis-2026-04-07"
"dreaming-2026-04-21"
"thinking-token-count-2026-05-13"
"server-side-fallback-2026-06-01"
"server-side-fallback-2026-07-01"
"fallback-credit-2026-06-01"
"fallback-credit-2026-07-01"
"agent-memory-2026-07-22"
"mid-conversation-tool-changes-2026-07-01"
"compact-2026-01-12"
"computer-use-2025-11-24"
"mcp-tunnels-2026-06-22"
"structured-outputs-2025-11-13"
"task-budgets-2026-03-13"
"thinking-display-updates-2026-08-18"
"ce-user-management-2026-07-13"
"mid-conversation-output-config-2026-07-01"
"thinking-binding-controls-2026-08-01"
"mid-conversation-system-clear-at-2026-08-21"
"compact-2026-09-04"
"inline-tools-2026-09-15"
"mcp-client-2026-09-15"
"juglow-workspace-id": optional string
Optional header to select the Workspace for this request. The value is a Workspace ID (for example, wrkspc_011CZkZaBF1tNoB5wlCeusgy).
Only needed for credentials that can act on more than one Workspace. A credential that belongs to a specific Workspace may omit it; if sent, it must match that Workspace.
Returns
data: array of BetaModelInfo
type: "model"
Object type.
For Models, this is always "model".
default: model
id: string
Unique model identifier.
allowed_fallback_models: array of string or null
Model IDs this model accepts as fallbacks[i].model on the Messages API. An empty list means the fallbacks parameter is not supported for this model as primary.
capabilities: BetaModelCapabilities or null
Object mapping capability names to their support details. Keys are always present for all known capabilities.
batch: BetaCapabilitySupport
Whether the model supports the Batch API.
supported: boolean
Whether this capability is supported by the model.
citations: BetaCapabilitySupport
Whether the model supports citation generation.
code_execution: BetaCapabilitySupport
Whether the model supports code execution tools.
compaction: BetaCompactionCapability or null
Server-side compaction support (the top-level compaction parameter) and the accepted compaction.type values.
summarize: BetaCapabilitySupport
Whether the summarize compaction type is supported.
supported: boolean
Whether this capability is supported by the model.
context_management: BetaContextManagementCapability
Context management support and available strategies.
clear_thinking_20251015: BetaCapabilitySupport or null
Whether the clear_thinking_20251015 strategy is supported.
clear_tool_uses_20250919: BetaCapabilitySupport or null
Whether the clear_tool_uses_20250919 strategy is supported.
compact_20260112: BetaCapabilitySupport or null
Whether the compact_20260112 strategy is supported.
supported: boolean
Whether this capability is supported by the model.
effort: BetaEffortCapability
Effort (reasoning_effort) support and available levels.
high: BetaCapabilitySupport
Whether the model supports high effort level.
low: BetaCapabilitySupport
Whether the model supports low effort level.
max: BetaCapabilitySupport
Whether the model supports max effort level.
medium: BetaCapabilitySupport
Whether the model supports medium effort level.
supported: boolean
Whether this capability is supported by the model.
xhigh: BetaCapabilitySupport or null
Whether the model supports xhigh effort level.
image_input: BetaCapabilitySupport
Whether the model accepts image content blocks.
pdf_input: BetaCapabilitySupport
Whether the model accepts PDF content blocks.
structured_outputs: BetaCapabilitySupport
Whether the model supports structured output / JSON mode / strict tool schemas.
thinking: BetaThinkingCapability
Thinking capability and supported type configurations.
supported: boolean
Whether this capability is supported by the model.
types: BetaThinkingTypes
Supported thinking type configurations.
adaptive: BetaCapabilitySupport
Whether the model supports thinking with type 'adaptive' (auto).
enabled: BetaCapabilitySupport
Whether the model supports thinking with type 'enabled'.
created_at: string
RFC 3339 datetime string representing the time at which the model was released. May be set to an epoch value if the release date is unknown.
format: date-time
display_name: string
A human-readable name for the model.
max_input_tokens: number or null
Maximum input context window size in tokens for this model.
max_tokens: number or null
Maximum value for the max_tokens parameter when using this model.
first_id: string or null
First ID in the data list. Can be used as the before_id for the previous page.
has_more: boolean
Indicates if there are more results in the requested page direction.
last_id: string or null
Last ID in the data list. Can be used as the after_id for the next page.
Example
curl https://haijun.my.id/v1/models \
-H 'juglow-version: 2023-06-01' \
-H "X-Api-Key: $JUGLOW_API_KEY"Response (200)
{
"data": [
{
"id": "haijun-opus-5",
"allowed_fallback_models": [
"string"
],
"capabilities": {
"batch": {
"supported": true
},
"citations": {
"supported": true
},
"code_execution": {
"supported": true
},
"compaction": {
"summarize": {
"supported": true
},
"supported": true
},
"context_management": {
"clear_thinking_20251015": {
"supported": true
},
"clear_tool_uses_20250919": {
"supported": true
},
"compact_20260112": {
"supported": true
},
"supported": true
},
"effort": {
"high": {
"supported": true
},
"low": {
"supported": true
},
"max": {
"supported": true
},
"medium": {
"supported": true
},
"supported": true,
"xhigh": {
"supported": true
}
},
"image_input": {
"supported": true
},
"pdf_input": {
"supported": true
},
"structured_outputs": {
"supported": true
},
"thinking": {
"supported": true,
"types": {
"adaptive": {
"supported": true
},
"enabled": {
"supported": true
}
}
}
},
"created_at": "2026-07-24T00:00:00Z",
"display_name": "Haijun Opus 5",
"max_input_tokens": 0,
"max_tokens": 0,
"type": "model"
}
],
"first_id": "first_id",
"has_more": true,
"last_id": "last_id"
}