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Support Astra and Fable 5.1 models #490

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Merged
kvz merged 4 commits into from
Sep 6, 2026
Merged

Support Astra and Fable 5.1 models #490

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9df8c45
Support Astra and Fable 5.1 models
kvz Sep 6, 2026
6499c39
Schedule SDK releases for new model support
kvz Sep 6, 2026
113b951
Record model rollout review and deployment dependency
kvz Sep 6, 2026
934feb6
Document GPT-6 reasoning support
kvz Sep 6, 2026
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10 changes: 10 additions & 0 deletions .changeset/astra-fable51.md
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---
"@transloadit/node": minor
"transloadit": minor
"@transloadit/utils": patch
"@transloadit/mcp-server": patch
"@transloadit/types": minor
"@transloadit/zod": minor
---

Support GPT-6 Astra and Claude Fable 5.1, and use Astra for automatic chat and assembly-instruction compilation. Assembly compilation retains medium reasoning effort. Existing model identifiers remain supported.
12 changes: 12 additions & 0 deletions docs/prompts/2026-09-06-astra-fable51.md
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# Astra and Fable 5.1 rollout review

PR: https://github.com/transloadit/node-sdk/pull/490

- [x] Review PR context; no open human review comments.
- [x] Council: add the missing release changeset, including companion packages.
- [x] Council: replace the stale Sol-default comment.
- [x] Council: record the backend dependency and block client rollout until API support is deployed.
- [x] `yarn check` passed; Node 20/22/24, E2E, build, and release dry-run CI passed on the implementation head.

This PR must not release new client defaults before the API2 sister PR is deployed. Current CI and
deployment/merge status remain on the PR.
10 changes: 5 additions & 5 deletions packages/node/src/alphalib/types/robots/ai-chat.ts
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Expand Up @@ -551,6 +551,7 @@ export const MODEL_CAPABILITIES: Record<string, { pdf: boolean; image: boolean }
'anthropic/claude-opus-4-6': { pdf: true, image: true },
'anthropic/claude-opus-4-7': { pdf: true, image: true },
'anthropic/claude-fable-5': { pdf: true, image: true },
'anthropic/claude-fable-5-1': { pdf: true, image: true },
'anthropic/claude-sonnet-5': { pdf: true, image: true },
'openai/gpt-4.1-2025-04-14': { pdf: false, image: true },
'openai/chatgpt-4o-latest': { pdf: false, image: true },
Expand All @@ -564,17 +565,16 @@ export const MODEL_CAPABILITIES: Record<string, { pdf: boolean; image: boolean }
'openai/gpt-5.2-pro': { pdf: false, image: true },
'openai/gpt-5.5': { pdf: false, image: true },
'openai/gpt-5.6-sol': { pdf: false, image: true },
'openai/gpt-6-astra': { pdf: false, image: true },
'openai/gpt-5.4': { pdf: false, image: true },
'openai/gpt-5.4-mini': { pdf: false, image: true },
'openai/gpt-5.4-nano': { pdf: false, image: true },
'google/gemini-2.5-pro': { pdf: true, image: true },
'moonshot/kimi-k2': { pdf: false, image: false },
}

// Default model for /ai/chat when `model: "auto"` (or unset).
// 2026-07-09: default is GPT-5.6 Sol (intentional; aligns with our current recommended OpenAI
// flagship model). Keep this aligned with MODEL_CAPABILITIES.
export const AI_CHAT_DEFAULT_MODEL = 'openai/gpt-5.6-sol' satisfies keyof typeof MODEL_CAPABILITIES
/** Default /ai/chat model for `auto` or omitted selections; keep aligned with the API backend. */
export const AI_CHAT_DEFAULT_MODEL = 'openai/gpt-6-astra' satisfies keyof typeof MODEL_CAPABILITIES

const supportedModelsList = Object.keys(MODEL_CAPABILITIES)

Expand Down Expand Up @@ -614,7 +614,7 @@ export const robotAiChatInstructionsSchema = robotBase
.enum(['xhigh', 'high', 'medium', 'low'])
.optional()
.describe(
'Controls how much effort the model spends on reasoning. Higher values produce more thorough responses but cost more tokens. Applies to models that support extended thinking (OpenAI o-series, GPT-5.x, Anthropic Claude with thinking). If omitted, the model default is used.',
'Controls how much effort the model spends on reasoning. Higher values produce more thorough responses but cost more tokens. Applies to models that support extended thinking (OpenAI o-series, GPT-5.x, GPT-6, Anthropic Claude with thinking). If omitted, the model default is used.',
),
credentials: z
.union([z.string(), z.array(z.string())])
Expand Down
2 changes: 1 addition & 1 deletion packages/node/test/unit/assembly-instructions-compiler.test.ts
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Expand Up @@ -68,7 +68,7 @@ describe('compileAssemblyInstructionsFromPrompt', () => {
expect(aiSteps[0]).toMatchObject({
robot: '/ai/chat',
result: true,
model: 'openai/gpt-5.6-sol',
model: 'openai/gpt-6-astra',
reasoning_effort: 'medium',
format: 'json',
interpolate: { system_message: false },
Expand Down
2 changes: 1 addition & 1 deletion packages/utils/src/assemblyInstructionsCompiler.ts
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@@ -1,4 +1,4 @@
export const COMPILE_ASSEMBLY_INSTRUCTIONS_DEFAULT_MODEL = 'openai/gpt-5.6-sol'
export const COMPILE_ASSEMBLY_INSTRUCTIONS_DEFAULT_MODEL = 'openai/gpt-6-astra'
export const COMPILE_ASSEMBLY_INSTRUCTIONS_DEFAULT_REASONING_EFFORT = 'medium'
export const COMPILE_ASSEMBLY_INSTRUCTIONS_DEFAULT_MAX_ATTEMPTS = 3

Expand Down