@@ -129,6 +129,7 @@ The settings page groups keys into **Models**, **Search & web**, and **Enrichmen
     | Nebius | Model calls |
     | Ollama Cloud | Model calls |
     | Kie | Model calls |
+    | Thinking Machines | Model calls |
     | Fal.ai | Image and video generation |
   </Tab>
   <Tab>
 
@@ -44,6 +44,12 @@ Select a model beginning with `nebius/` to run an open model through Nebius Toke
 
 Bring your own Nebius Token Factory API key. On Sim Cloud, a workspace admin can add it under **Workspace settings → BYOK → Nebius**. On self-hosted Sim, provide the key in the Agent block's **API Key** field, using a [secret reference](/platform/credentials). Model features such as image input and structured outputs depend on the selected model.
 
+#### Thinking Machines
+
+Select a model beginning with `thinkingmachines/` to run Inkling, Inkling-Small, or Inkling 2 Small through Tinker serverless inference. To sample a checkpoint you trained on Tinker, enter `thinkingmachines/` followed by its `tinker://` path. Custom checkpoints have no catalog pricing.
+
+Bring your own Thinking Machines Tinker API key. On Sim Cloud, a workspace admin can add it under **Workspace settings → BYOK → Thinking Machines**. On self-hosted Sim, provide the key in the Agent block's **API Key** field, using a [secret reference](/platform/credentials). Tinker's serverless inference is in beta: file attachments are not sent, tools run with automatic tool choice only, and structured outputs are requested through the prompt.
+
 #### Jev evaluation models
 
 Select `jev-latest` from TypeSafe in the Agent model selector. Hosted Sim supplies a key and bills model usage through the normal credit system; workspace or organization BYOK keys override the hosted key without model charges. Self-hosted users enter their TypeSafe key in the block. Use `jev-1.13.0` to pin a version or `jev-preview` to follow preview releases. These models use **State** and **Questions** in place of conversational messages. State accepts text or a reference to a JSON object or array. Questions is a JSON object keyed by the answer names you want:
 
@@ -47,6 +47,7 @@ import {
   ZeroBounceIcon,
 } from '@/components/icons'
 import { NebiusIcon } from '@/components/icons/nebius'
+import { ThinkingMachinesIcon } from '@/components/icons/thinking-machines'
 import { canMutateWorkspaceSettingsSection } from '@/components/settings/navigation'
 import { type BYOKProviderId, MAX_BYOK_KEYS_PER_PROVIDER } from '@/lib/api/contracts/byok-keys'
 import { useDeploymentShape } from '@/lib/core/config/deployment-shape'
@@ -182,6 +183,13 @@ const PROVIDERS: (BYOKManagerProvider & { id: BYOKProviderId })[] = [
     description: 'LLM calls',
     placeholder: 'Enter your Kie API key',
   },
+  {
+    id: 'thinkingmachines',
+    name: 'Thinking Machines',
+    icon: ThinkingMachinesIcon,
+    description: 'LLM calls',
+    placeholder: 'Enter your Thinking Machines Tinker API key',
+  },
   {
     id: 'falai',
     name: 'Fal.ai',
@@ -383,6 +391,7 @@ const PROVIDER_SECTIONS: BYOKProviderSection[] = [
       'nebius',
       'ollama-cloud',
       'kie',
+      'thinkingmachines',
       'falai',
     ],
   },
 
@@ -27,6 +27,7 @@ import {
   ZaiIcon,
 } from '@/components/icons'
 import { NebiusIcon } from '@/components/icons/nebius'
+import { ThinkingMachinesIcon } from '@/components/icons/thinking-machines'
 
 /**
  * Provider brand marks, keyed by the `providerId` the server resolves.
@@ -60,6 +61,7 @@ export const PROVIDER_ICONS: Readonly<Record<string, ComponentType<{ className?:
   openai: OpenAIIcon,
   openrouter: OpenRouterIcon,
   sakana: SakanaIcon,
+  thinkingmachines: ThinkingMachinesIcon,
   together: TogetherIcon,
   typesafe: TypeSafeIcon,
   vertex: VertexIcon,
 
@@ -0,0 +1,15 @@
+import type { SVGProps } from 'react'
+
+interface ThinkingMachinesIconProps extends SVGProps<SVGSVGElement> {}
+
+export function ThinkingMachinesIcon(props: ThinkingMachinesIconProps) {
+  return (
+    <svg {...props} viewBox='-4 -4 99.7998 42' fill='none' xmlns='http://www.w3.org/2000/svg'>
+      <rect x='-4' y='-4' width='99.7998' height='42' rx='4' fill='#FFFFFF' />
+      <path
+        d='M5.77637 30.1113H5.8125L9.61621 21.5127H11.6064V34H9.63379V25.6514H9.59863L6.46973 32.4121H5.11914L2.00879 25.6514H1.97266V34H0V21.5127H1.97266L5.77637 30.1113ZM24.8838 34H22.7861L21.7197 31.0391H17.0811L16.0146 34H13.917L18.4316 21.5127H20.3867L24.8838 34ZM36.5635 23.4922V25.1338H34.501V24.2236L33.5596 23.2959H29.8262L28.8135 24.2949V31.2168L29.8262 32.2158H33.5596L34.501 31.2881V30.3789H36.5635V32.0195L34.5898 34H28.7598L26.752 31.9844V23.5283L28.7598 21.5127H34.5898L36.5635 23.4922ZM41.3877 26.8818H47.04V21.5127H49.1025V34H47.04V28.666H41.3877V34H39.3262V21.5127H41.3877V26.8818ZM54.6377 34H52.5762V21.5127H54.6377V34ZM65.8467 30.5928H65.8828V21.5127H67.8555V34H65.9717L60.1055 24.9375H60.0703V34H58.0977V21.5127H59.9814L65.8467 30.5928ZM79.915 23.2783H73.3027V26.8467H79.3994V28.5947H73.3027V32.2334H79.915V34H71.2412V21.5127H79.915V23.2783ZM91.6582 23.3496V24.9375H89.6318V23.9746L88.9385 23.2959H85.2412L84.5479 23.9746V26.0439L85.2412 26.7217H89.9688L91.7998 28.5586V32.127L89.9336 34H84.3164L82.4863 32.1621V30.5928H84.5127V31.5381L85.1875 32.2158H89.0625L89.7734 31.5029V29.2012L89.0801 28.5059H84.3525L82.5215 26.6855V23.3496L84.3525 21.5127H89.8271L91.6582 23.3496ZM17.5781 29.3086H21.2402L19.4092 24.0273H19.374L17.5781 29.3086ZM12.7705 1.76562H9.03711V12.4873H6.97559V1.76562H3.24316V0H12.7705V1.76562ZM17.3232 5.36914H22.9756V0H25.0381V12.4873H22.9756V7.15332H17.3232V12.4873H15.2617V0H17.3232V5.36914ZM30.5732 12.4873H28.5117V0H30.5732V12.4873ZM41.7822 9.08008H41.8184V0H43.791V12.4873H41.9072L36.041 3.4248H36.0059V12.4873H34.0322V0H35.917L41.7822 9.08008ZM49.2383 5.36914H51.46L54.5352 0H56.8281L53.2197 6.22559L57.1299 12.4873H54.7832L51.46 7.15332H49.2383V12.4873H47.1758V0H49.2383V5.36914ZM61.585 12.4873H59.5234V0H61.585V12.4873ZM72.7939 9.08008H72.8301V0H74.8027V12.4873H72.9189L67.0527 3.4248H67.0176V12.4873H65.0449V0H66.9287L72.7939 9.08008ZM87.9287 1.98047V3.62109H85.8662V2.71191L84.9248 1.78418H81.085L80.0723 2.7832V9.70508L81.085 10.7041H84.9248L85.9199 9.72266V7.45703H83.2002V5.67285H87.9287V10.4717L85.9199 12.4873H80.0186L78.0107 10.4717V2.01562L80.0186 0H85.9551L87.9287 1.98047Z'
+        fill='#000000'
+      />
+    </svg>
+  )
+}
@@ -345,6 +345,20 @@ export async function getApiKeyWithBYOK(
     throw new Error(`API key is required for Nebius ${model}`)
   }
 
+  if (provider === 'thinkingmachines') {
+    const byokResult = await getBYOKKey(workspaceId, 'thinkingmachines', { signal })
+    if (byokResult) {
+      logger.info('Using BYOK key for Thinking Machines', {
+        model,
+        workspaceId,
+        scope: byokResult.scope,
+      })
+      return byokResult
+    }
+    if (userProvidedKey) return { apiKey: userProvidedKey, isBYOK: false }
+    throw new Error(`API key is required for Thinking Machines ${model}`)
+  }
+
   if (provider === 'ollama-cloud') {
     if (workspaceId) {
       const byokResult = await getBYOKKey(workspaceId, 'ollama-cloud', { signal })
 
@@ -17,6 +17,7 @@ export const byokProviderIdSchema = z.enum([
   'nebius',
   'ollama-cloud',
   'kie',
+  'thinkingmachines',
   'falai',
   'firecrawl',
   'exa',
 
@@ -5,23 +5,30 @@ import { isFree } from '@/lib/billing/plan-helpers'
 import type { UsageUpgradePayer } from '@/lib/billing/usage-upgrade'
 import { isBillingEnabled, isHosted } from '@/lib/core/config/env-flags'
 
-const logger = createLogger('ChatAccess')
+const logger = createLogger('PaidAccess')
+
+interface PaidAccessOptions {
+  /**
+   * The verdict for a free payer whose credit balance cannot be read. Chat admits, because a
+   * database blip must not lock a paying customer out and every turn is bounded by the usage
+   * check that follows. A hosted key denies, because nothing after acquisition bounds it.
+   */
+  onBalanceUnavailable: 'admit' | 'deny'
+}
 
 /**
- * Whether a payer may use Chat (talking to Sim). Every turn spends hosted model credits, so a
- * hosted deployment that bills withholds Chat from a payer on the free plan — unless that payer
- * holds prepaid credits, which an admin grants to customers billed outside a subscription.
+ * Whether a payer may use a feature a hosted deployment reserves for paying payers: Chat, and
+ * hosted keys a tool marks `requiresPaidPlan`. A hosted deployment that bills withholds these from
+ * a payer on the free plan, unless that payer holds prepaid credits, which an admin grants to
+ * customers billed outside a subscription.
  *
  * The plan is the payer's entitled subscription (active or past due), so a canceled
  * plan reads as free; a blocked payer is refused by the usage check every caller runs next.
- *
- * This is the single verdict behind every Chat plan gate: run admission, chat titles, scheduled
- * job dispatch, Copilot key admission, and the workspace host context the composer reads, so the
- * composer never offers a send that admission will refuse. A balance that cannot be read admits
- * the payer: a database blip must not lock a paying customer out, and a free payer stays bounded
- * by its usage limit.
  */
-export async function payerHasChatAccess(payer: UsageUpgradePayer): Promise<boolean> {
+export async function payerHasPaidAccess(
+  payer: UsageUpgradePayer,
+  options: PaidAccessOptions
+): Promise<boolean> {
   if (!isHosted || !isBillingEnabled) return true
   if (!isFree(payer.payerSubscription?.plan)) return true
   try {
@@ -31,10 +38,23 @@ export async function payerHasChatAccess(payer: UsageUpgradePayer): Promise<bool
     )
     return balance > 0
   } catch (error) {
-    logger.warn('Credit balance unavailable; admitting the payer to Chat', {
+    logger.warn('Credit balance unavailable for a free payer', {
       billingEntity: payer.billingEntity,
+      verdict: options.onBalanceUnavailable,
       error: getErrorMessage(error),
     })
-    return true
+    return options.onBalanceUnavailable === 'admit'
   }
 }
+
+/**
+ * Whether a payer may use Chat (talking to Sim): {@link payerHasPaidAccess}, since every turn
+ * spends hosted model credits, admitting a payer whose balance cannot be read.
+ *
+ * This is the single verdict behind every Chat plan gate: run admission, chat titles, scheduled
+ * job dispatch, Copilot key admission, and the workspace host context the composer reads, so the
+ * composer never offers a send that admission will refuse.
+ */
+export function payerHasChatAccess(payer: UsageUpgradePayer): Promise<boolean> {
+  return payerHasPaidAccess(payer, { onBalanceUnavailable: 'admit' })
+}
@@ -569,6 +569,27 @@ export const SteerV2Response = z.discriminatedUnion("status", [
 ]);
 export type SteerV2Response = z.infer<typeof SteerV2Response>;
 
+/**
+ * POST /api/streams/steer/v2/disposition: what became of the input `steeringId`, read without
+ * sending it. It never queues, renders or claims anything. An input the chat holds answers as
+ * a retry of it on /api/streams/steer/v2 would (the chat-wide identity included). One it does
+ * not hold answers `not_applied` once the run `messageId` has ended or stopped, since no
+ * steer could reach it any more, and `unknown` while the run is live: nothing was delivered,
+ * and sending it is still the caller's choice. A run that does not exist (or another
+ * tenant's) is a 404 `steering_target_missing`, as for a steer.
+ */
+export const SteerDispositionRequest = z.strictObject({
+  messageId: z.uuid(),
+  steeringId: z.uuid(),
+});
+export type SteerDispositionRequest = z.infer<typeof SteerDispositionRequest>;
+
+export const SteerDispositionResponse = z.discriminatedUnion("status", [
+  ...SteerV2Response.options,
+  z.strictObject({ steeringId: z.string(), status: z.literal("unknown") }),
+]);
+export type SteerDispositionResponse = z.infer<typeof SteerDispositionResponse>;
+
 /** The `run`/`steering_applied` frame: a steer reached the run's model input. */
 export interface StreamSteeringApplied {
   kind: "steering_applied";
 
@@ -185,12 +185,12 @@ export const LIVE_SEARCH_PROVIDERS = {
   confluence: {
     guide: {
       syntax:
-        'CQL: text ~ "term", title ~ "term" (title ~ "win*" for a prefix), type IN (page, blogpost) and space = KEY (quote keys starting with a digit), joined with AND/OR/NOT and parentheses; add ORDER BY lastmodified DESC only when recency matters more than relevance.',
+        'CQL: siteSearch ~ "a few words" is Confluence relevance search and ranks pages about the topic first, so use it for topic, acronym and how-to lookups. text ~ "term" and title ~ "term" (title ~ "win*" for a prefix) match pages containing those words or their variants without that ranking, so keep them for a specific identifier or term; text ~ "\\"exact phrase\\"" matches a phrase. Combine with type IN (page, blogpost) and space = KEY (quote keys starting with a digit) using AND/OR/NOT and parentheses; add ORDER BY lastmodified DESC only when recency matters more than relevance.',
       scope:
         'creator = currentUser(), contributor = currentUser(), mention = currentUser() and space = KEY. CQL has no project field; the separate native project field takes an Atlassian site cloud ID.',
-      example: 'type IN (page, blogpost) AND space = ENG AND text ~ "roadmap"',
+      example: 'type IN (page, blogpost) AND siteSearch ~ "deployment freeze process"',
       avoid:
-        'starting the query with a negative clause (NOT, !=, !~ or NOT IN), which CQL rejects; lead with a positive clause such as type IN (page, blogpost).',
+        'ORing several text ~ clauses for a topic, which ranks pages sharing one common word first (put the words in one siteSearch instead), and starting the query with a negative clause (NOT, !=, !~ or NOT IN), which CQL rejects; lead with a positive clause such as type IN (page, blogpost).',
     },
     requiresEveryTerm: true,
     previewText: previewConfluence,