feat: Make Sonnet 4.6 free for one week in review mode by kiloconnect[bot] · Pull Request #295 · Kilo-Org/cloud

kiloconnect · 2026-02-17T18:59:58Z

Summary

Make Claude Sonnet 4.6 free for one week in Code Reviewer (review mode).

Promotion window: 2026-02-18 11:00 UTC → 2026-02-25 11:00 UTC (7 days)

Changes

Free model promotion (following PR #27 patterns)

Add sonnet_46_free_review_model in src/lib/providers/anthropic.ts with review_only: true flag
Extend KiloFreeModel type with review_only, promotion_start, and promotion_end fields
Register the model in kiloFreeModels array in src/lib/models.ts
Hide review-only models from the public model list (same pattern as slackbot_only)
Block access to review-only models outside of internal API (Code Reviewer) and outside the promotion window

Promotion-aware model selection

Add getDefaultCodeReviewModel() function that returns the promotional model during the active window
Update prepare-review-payload.ts to use the promotion-aware model selection
When no custom model is configured, code reviews automatically use Sonnet 4.6 during the promotion

Tracking & Reporting

Structured logging: Log when the promotional model is selected for a code review (includes reviewId, owner, promotion dates)
Admin endpoint: New getReviewPromotionStats tRPC query in the admin code reviews router that reports:
- Total/completed/failed reviews using the promo model
- Unique users and organizations
- Daily breakdown with per-day user counts
- Promotion active status

Access control

Review-only models return "model does not exist" when accessed outside of Code Reviewer (internalApiUse)
Promotion automatically expires — after promotion_end, the model returns "does not exist"
No changes needed to billing: code reviews already use skipBalanceCheck: true

Testing

curl -s "http://localhost:3000/api/trpc/admin.codeReviews.getReviewPromotionStats" -H "Cookie: ..." | jq

{
  "result": {
    "data": {
      "promotionModelId": "anthropic/claude-sonnet-4.6:review",
      "promotionInternalModelId": "anthropic/claude-sonnet-4.6",
      "promotionStart": "2026-02-18T00:00:00Z",
      "promotionEnd": "2026-02-25T00:00:00Z",
      "isActive": true,
      "totalPromoReviews": 0,
      "completedPromoReviews": 0,
      "failedPromoReviews": 0,
      "uniqueUsers": 0,
      "uniqueOrgs": 0,
      "dailyBreakdown": []
    }
  }
}

Built for alex.alecu by Kilo for Slack

- Add claude-sonnet-4-6-20250514 as a free promotional model for Code Reviewer - Promotion window: 2026-02-18 to 2026-02-25 (7 days) - Model is hidden from public model list (review_only flag) - Only accessible through internal API (Code Reviewer) during promotion - Add promotion tracking admin endpoint (getReviewPromotionStats) - Add structured logging for promotion model usage

kiloconnect · 2026-02-17T19:03:47Z

src/lib/code-reviews/core/constants.ts

+ */
+export function getDefaultCodeReviewModel(): string {
+  const promoModel = getActiveReviewPromotionModel();
+  return promoModel?.internal_id ?? BASE_CODE_REVIEW_MODEL;


CRITICAL: getDefaultCodeReviewModel() returns internal_id instead of public_id, which means the promotional model will not be recognized as free by the API route.

The API route at src/app/api/openrouter/[...path]/route.ts uses the model ID to check isFreeModel(), isReviewOnlyModel(), and isRateLimitedModel() — all of which match against public_id. The applyProviderSpecificLogic() function in src/lib/providers/index.ts:243 then rewrites requestToMutate.model from public_id → internal_id before sending to OpenRouter.

By returning internal_id here, the model bypasses the review-only access gate and isn't recognized as free, so users will be charged credits for what's supposed to be a free promotional model.

For reference, the Slack integration correctly uses public_id (opus_46_free_slackbot_model.public_id) in src/lib/integrations/slack-service.ts:20.

Suggested change

return promoModel?.internal_id ?? BASE_CODE_REVIEW_MODEL;

return promoModel?.public_id ?? BASE_CODE_REVIEW_MODEL;

this comment is valid, isn't it?

src/routers/admin-code-reviews-router.ts

kiloconnect · 2026-02-17T19:04:07Z

Code Review Summary

Status: 4 Issues Found | Recommendation: Address before merge

Overview

Severity	Count
CRITICAL	1
WARNING	1
SUGGESTION	2

Issue Details (click to expand)

CRITICAL

File	Line	Issue
`src/lib/code-reviews/core/constants.ts`	25	`getDefaultCodeReviewModel()` returns `internal_id` (`anthropic/claude-sonnet-4.6`) instead of `public_id` (`anthropic/claude-sonnet-4.6:review`). The code review system sends this model through the OpenRouter proxy, which gates `review` models via `allowed_uses` check against `public_id`. Using `internal_id` means the proxy won't recognize it as the review promo model and will route it as a regular paid Sonnet 4.6 request.

WARNING

File	Line	Issue
`src/routers/admin-code-reviews-router.ts`	400	The query matches `cliSessions.last_model` against `promoModelId` which is `internal_id` (`anthropic/claude-sonnet-4.6`). If `last_model` stores the `public_id` (`anthropic/claude-sonnet-4.6:review`), this query will return zero results. Conversely, if it stores the `internal_id`, it will also match non-promotional Sonnet 4.6 usage, inflating stats.

SUGGESTION

File	Line	Issue
`src/lib/providers/anthropic.ts`	N/A	Unnecessary `as` casts — `satisfies KiloFreeModel` is already used for the new models but `as KiloFreeModel[]` remains on the array in `src/lib/models.ts` line 73.
`src/lib/models.ts`	N/A	`isFreeModelAllowedForUse` is exported but never used (if it exists).

Other Observations (not in diff)

Issues found in unchanged code that cannot receive inline comments:

File	Line	Issue
`src/lib/providers/openrouter/sync-providers.ts`	120-121	The review model (`sonnet_46_free_review_model`) has `is_enabled: true` and `inference_providers: ['anthropic']`, so it passes the `model.is_enabled && model.inference_providers.length > 0` filter and will be synced to the provider database. This is likely harmless since `enhancedModelList` already excludes it from the public model list, but worth verifying this is intentional.
`src/lib/models.ts`	73	The `as KiloFreeModel[]` cast on the `kiloFreeModels` array could be replaced with `satisfies KiloFreeModel[]` for consistency with the `satisfies` pattern adopted in `anthropic.ts`.

Files Reviewed (9 files)

src/app/api/openrouter/[...path]/route.ts - 0 new issues
src/components/cloud-agent-next/hooks/useResumeConfigModal.ts - 0 new issues
src/components/cloud-agent/hooks/useResumeConfigModal.ts - 0 new issues
src/lib/code-reviews/core/constants.ts - 1 issue (existing)
src/lib/code-reviews/triggers/prepare-review-payload.ts - 0 new issues
src/lib/models.ts - 1 issue (existing)
src/lib/providers/anthropic.ts - 1 issue (existing)
src/lib/providers/kilo-free-model.ts - 0 new issues
src/lib/providers/openrouter/index.ts - 0 new issues
src/routers/admin-code-reviews-router.ts - 1 issue (existing)

Fix these issues in Kilo Cloud

Use leftJoin instead of innerJoin for cli_sessions to avoid dropping reviews without a session. Fix COALESCE type mismatch, default empty stats result, exclude review_only models from rate limiting, and remove deprecated DEFAULT_CODE_REVIEW_MODEL constant.

src/lib/providers/anthropic.ts

…array

src/lib/models.ts

…g/cloud into feat/sonnet-46-free-review-promo

chrarnoldus · 2026-02-18T10:29:17Z

src/lib/providers/anthropic.ts

+  display_name: 'Anthropic: Claude Sonnet 4.6 (Free for Code Reviewer)',
+  description: 'Claude Sonnet 4.6 — free for one week in Code Reviewer (review mode)',
+  context_length: 1_000_000,
+  max_completion_tokens: 16384,


Suggested change

max_completion_tokens: 16384,

max_completion_tokens: 128000,

RSO · 2026-02-18T10:26:08Z

src/lib/providers/anthropic.ts

+export const sonnet_46_free_review_model = {
+  public_id: SONNET_46_REVIEW_PROMO_MODEL_ID,
+  display_name: 'Anthropic: Claude Sonnet 4.6 (Free for Code Reviewer)',
+  description: 'Claude Sonnet 4.6 — free for one week in Code Reviewer (review mode)',


What does (review mode) add to this description? i don't think users can actually use this model for review model locally, right?

RSO · 2026-02-18T10:27:12Z

src/lib/providers/anthropic.ts

+  promotion_start: '2026-02-18T11:00:00Z', // 6 AM East Coast
+  promotion_end: '2026-02-25T11:00:00Z',


Instead of adding these two new fields, I'd just use: is_enabled: current_time < promotion_end

That way you also don't need to have a isReviewPromotionActive because then the promotion is active as long as model.is_enabled is true

RSO · 2026-02-18T10:29:23Z

src/routers/admin-code-reviews-router.ts

    }),
+
+  // Sonnet 4.6 free review promotion tracking
+  getReviewPromotionStats: adminProcedure.query(async () => {


Is this just an orphaned procedure that you plan to use later?

chrarnoldus · 2026-02-18T10:29:56Z

src/lib/providers/anthropic.ts

+  flags: ['reasoning', 'prompt_cache', 'vision'],
+  gateway: 'openrouter',
+  internal_id: 'anthropic/claude-sonnet-4.6',
+  inference_providers: ['anthropic'],


Suggested change

inference_providers: ['anthropic'],

inference_providers: [],

for openrouter models this is only necessary if you want to constrain which provider is used.

chrarnoldus · 2026-02-18T10:35:37Z

src/lib/providers/openrouter/index.ts

-    .concat(kiloFreeModels.filter(m => m.is_enabled).map(model => convertFromKiloModel(model)))
+    .concat(
+      kiloFreeModels
+        .filter(m => m.is_enabled && !m.allowed_uses?.length)


with this change I don't think it will be possible for users to switch back to the free promotional model after switching to another model, unless this PR is also finished: #149

chrarnoldus · 2026-02-18T10:42:05Z

src/lib/code-reviews/core/constants.ts

 */
-export const DEFAULT_CODE_REVIEW_MODEL = 'anthropic/claude-sonnet-4.5';
+export function getDefaultCodeReviewModel(): string {
+  const promoModel = getActiveReviewPromotionModel();


when the promo ends, what is the expecte experience for existing users? will the get an error or will they silently be moved to the paid model? if the latter, then you don't actually need to add a custom model slug and it would suffice to override the cost administration

markijbema · 2026-02-18T10:51:13Z

src/lib/code-reviews/core/constants.ts

+ * If a review-only promotional model is currently active, it takes precedence.
 */
-export const DEFAULT_CODE_REVIEW_MODEL = 'anthropic/claude-sonnet-4.5';
+export function getDefaultCodeReviewModel(): string {


I don't think this belongs here, and we want to restrict this file to only the constants

(this file was only ever meant for ENV vars which dont need to be ENV vars)

kiloconnect bot commented Feb 17, 2026

View reviewed changes

alex-alecu added 4 commits February 18, 2026 08:59

Merge branch 'main' into feat/sonnet-46-free-review-promo

c3df677

fix: Fix sonnet 4.6 model id

70e9ea2

fix: Revert old changes

cd9d731

kiloconnect bot commented Feb 18, 2026

View reviewed changes

src/lib/providers/anthropic.ts Outdated Show resolved Hide resolved

refactor: Migrate slackbot_only/review_only booleans to allowed_uses …

e19190f

…array

kiloconnect bot commented Feb 18, 2026

View reviewed changes

src/lib/models.ts Outdated Show resolved Hide resolved

alex-alecu added 4 commits February 18, 2026 11:55

Merge branch 'main' into feat/sonnet-46-free-review-promo

df305cb

fix: remove redundant as-casts and unused isFreeModelAllowedForUse

7105f72

Merge branch 'feat/sonnet-46-free-review-promo' of github.com:Kilo-Or…

6717176

…g/cloud into feat/sonnet-46-free-review-promo

feat: Update promotion start

8166221

alex-alecu requested review from RSO and markijbema February 18, 2026 10:16

chrarnoldus reviewed Feb 18, 2026

View reviewed changes

RSO requested changes Feb 18, 2026

View reviewed changes

chrarnoldus reviewed Feb 18, 2026

View reviewed changes

markijbema reviewed Feb 18, 2026

View reviewed changes

	return promoModel?.internal_id ?? BASE_CODE_REVIEW_MODEL;
	return promoModel?.public_id ?? BASE_CODE_REVIEW_MODEL;

		promotion_start: '2026-02-18T11:00:00Z', // 6 AM East Coast
		promotion_end: '2026-02-25T11:00:00Z',

Conversation

kiloconnect bot commented Feb 17, 2026 • edited by alex-alecu Loading Uh oh! There was an error while loading. Please reload this page.

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Summary

Changes

Free model promotion (following PR #27 patterns)

Promotion-aware model selection

Tracking & Reporting

Access control

Testing

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kiloconnect bot commented Feb 17, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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Code Review Summary

Overview

CRITICAL

WARNING

SUGGESTION

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kiloconnect bot commented Feb 17, 2026 •

edited by alex-alecu

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kiloconnect bot commented Feb 17, 2026 •

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