[ENHANCEMENT] Update Gemini latest models sort out the list

[cleacos]

Problem (one or two sentences)

Gemini has recently released a new update for Flash 2.5 models: -09-2025. It would be nice to update the gemini.ts model list with these new ones and also add the latest slug. Additionally, we could sort the list to place the most recent ones at the top.

Context (who is affected and when)

Everyone. Keeping models updated.

Desired behavior (conceptual, not technical)

Update Gemini models.

Constraints / preferences (optional)

No response

Request checklist

• I've searched existing Issues and Discussions for duplicates
• This describes a specific problem with clear context and impact

Roo Code Task Links (optional)

No response

Acceptance criteria (optional)

No response

Proposed approach (optional)

Add the models that point to the latest version:

"gemini-flash-latest": {
		maxTokens: 65_536,
		contextWindow: 1_048_576,
		supportsImages: true,
		supportsPromptCache: true,
		inputPrice: 0.3,
		outputPrice: 2.5,
		cacheReadsPrice: 0.075,
		cacheWritesPrice: 1.0,
		maxThinkingTokens: 24_576,
		supportsReasoningBudget: true,
	},
	"gemini-flash-lite-latest": {
		maxTokens: 65_536,
		contextWindow: 1_048_576,
		supportsImages: true,
		supportsPromptCache: true,
		inputPrice: 0.1,
		outputPrice: 0.4,
		cacheReadsPrice: 0.025,
		cacheWritesPrice: 1.0,
		supportsReasoningBudget: true,
		maxThinkingTokens: 24_576,
	},

Add the latest preview models:

	"gemini-2.5-flash-preview-09-2025": {
		maxTokens: 65_536,
		contextWindow: 1_048_576,
		supportsImages: true,
		supportsPromptCache: true,
		inputPrice: 0.3,
		outputPrice: 2.5,
		cacheReadsPrice: 0.075,
		cacheWritesPrice: 1.0,
		maxThinkingTokens: 24_576,
		supportsReasoningBudget: true,
	},
	"gemini-2.5-flash-lite-preview-09-2025": {
		maxTokens: 65_536,
		contextWindow: 1_048_576,
		supportsImages: true,
		supportsPromptCache: true,
		inputPrice: 0.1,
		outputPrice: 0.4,
		cacheReadsPrice: 0.025,
		cacheWritesPrice: 1.0,
		supportsReasoningBudget: true,
		maxThinkingTokens: 24_576,
	},

And sorted out the list, placing the most recent one at the top.

Trade-offs / risks (optional)

No response

[roomote]

I'm exploring a potential fix for updating the Gemini models list with the latest versions and will open a PR to share progress.

[roomote]

Opened a PR with my attempt at addressing this issue: #8486

The PR adds the requested Gemini models and reorganizes the list with the most recent versions at the top. Most CI checks are passing, though there's one integration test failure that appears to be unrelated to the changes. Feedback welcome!

[cleacos]

Nice! If I know you, @roomote-agent, are so efficient, I'd be more specific in my issue description. But that, the PR is pretty similar to what I had prepared.

[roomote]

Thank you @cleacos! I appreciate your feedback. I'll review the existing PR #8486 to see if any adjustments are needed based on your comment. If you have any specific improvements or changes in mind that would make it even better, please let me know!

[roomote]

Great to hear the implementation aligns with what you had in mind! The PR #8486 includes all the requested changes:

✅ Added gemini-flash-latest and gemini-flash-lite-latest models
✅ Added gemini-2.5-flash-preview-09-2025 and gemini-2.5-flash-lite-preview-09-2025 models
✅ Reorganized the models list with the most recent versions at the top
✅ Added clear section comments for better maintainability

The PR is ready for review. Most CI checks are passing, with one integration test failure that appears unrelated to these changes. Thanks for the clear requirements in the issue!