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LLMs: xAI: add Grok 4.20 models, including multi-agent

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This commit is contained in:
Enrico Ros
2026-03-21 15:28:53 -07:00
parent 3ecbbc3b70
commit d9183c9658
1 changed files with 46 additions and 1 deletions
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src/modules/llms/server/openai/models/xai.models.ts
+46 -1
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@@ -16,7 +16,14 @@ const DEV_DEBUG_XAI_MODELS = (Release.TenantSlug as any) === 'staging' /* ALSO I
// Known xAI Models - Manual Mappings
// List on: https://docs.x.ai/docs/models?cluster=us-east-1
// Verified: 2026-01-29
// Verified: 2026-03-21
// Flat pricing for Grok 4.20 flagship models
const PRICE_420 = {
input: 2,
output: 6,
cache: { cType: 'oai-ac' as const, read: 0.2 },
};
// Tiered pricing for Grok 4.1 Fast models (both reasoning and non-reasoning)
const PRICE_41 = {
@@ -73,6 +80,40 @@ const XAI_PAR_Pre4: ModelDescriptionSchema['parameterSpecs'] = [] as const;
const _knownXAIChatModels: ManualMappings = [
// Grok 4.20 (flagship, March 2026) - note: model IDs use dot (4.20), unlike earlier models
{
idPrefix: 'grok-4.20-0309-reasoning',
label: 'Grok 4.20 Reasoning',
description: 'xAI\'s most advanced flagship reasoning model with a 2M token context window. Deep reasoning and problem-solving capabilities with text and image inputs.',
contextWindow: 2000000,
maxCompletionTokens: undefined,
interfaces: [...XAI_IF_Vision, LLM_IF_OAI_Reasoning],
parameterSpecs: XAI_PAR_Reasoning,
chatPrice: PRICE_420,
benchmark: { cbaElo: 1481 }, // grok-4.20-beta-0309-reasoning (CBA name)
},
{
idPrefix: 'grok-4.20-0309-non-reasoning',
label: 'Grok 4.20',
description: 'xAI\'s most advanced flagship model with a 2M token context window. Non-reasoning variant for fast, high-quality responses with text and image inputs.',
contextWindow: 2000000,
maxCompletionTokens: undefined,
interfaces: XAI_IF_Vision,
parameterSpecs: XAI_PAR,
chatPrice: PRICE_420,
benchmark: { cbaElo: 1492 }, // grok-4.20-beta1 (CBA name, preliminary)
},
{
idPrefix: 'grok-4.20-multi-agent-0309',
label: 'Grok 4.20 Multi-Agent',
description: 'Multi-agent reasoning model that runs 4 specialized agents in parallel (coordinator, fact-checker, analyst, challenger) for collaborative verification with reduced hallucination.',
contextWindow: 2000000,
maxCompletionTokens: undefined,
interfaces: [...XAI_IF_Vision, LLM_IF_OAI_Reasoning],
parameterSpecs: XAI_PAR_Reasoning,
chatPrice: PRICE_420,
},
// Grok 4.1
{
idPrefix: 'grok-4-1-fast-reasoning',
@@ -122,6 +163,7 @@ const _knownXAIChatModels: ManualMappings = [
chatPrice: PRICE_40,
},
{
hidden: true, // yield to 4.20
idPrefix: 'grok-4-0709',
label: 'Grok 4 (0709)',
description: 'xAI\'s most advanced model, offering state-of-the-art reasoning and problem-solving capabilities over a massive 256k context window. Supports text and image inputs.',
@@ -270,6 +312,9 @@ export async function xaiFetchModelDescriptions(access: OpenAIAccessSchema): Pro
// manual sort order - your desired order
const _xaiIdStartsWithOrder = [
'grok-4.20-0309-reasoning',
'grok-4.20-0309-non-reasoning',
'grok-4.20-multi-agent-0309',
'grok-4-1-fast-reasoning',
'grok-4-1-fast-non-reasoning',
'grok-code-fast-1',