feat: add new claude models

[Lavriz]

https://www.anthropic.com/news/claude-4

[Lavriz]

i might miss smth from the docs, sorry, just got it: https://docs.anthropic.com/en/docs/about-claude/models/migrating-to-claude-4

[evgenydmitriev]

Let's have Claude review this.

[Copilot]

Pull Request Overview

Adds support for the new Claude 4 Sonnet and Opus models by extending the ModelName enum and updating the Anthropic provider’s default and supported models.

• Introduce Claude_4_Sonnet and Claude_4_Opus in ModelName
• Set Claude_4_Sonnet as the default for Anthropic and expand its models list

Comments suppressed due to low confidence (1)

src/providers/index.ts:18

• The string literal here reverses the established pattern (claude-<version>-<name>-<date>). Consider renaming to 'claude-4-sonnet-20250514' (and similarly for Opus) to keep consistency with other enum entries.

Claude_4_Sonnet = 'claude-sonnet-4-20250514',

[evgenydmitriev]

@claude review this PR

[claude]

Claude finished @evgenydmitriev's task —— View job

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Code Review: feat: add new claude models

Todo List:

• Read the changed file (src/providers/index.ts) to understand the modifications
• Check for any related files that define model names or types
• Analyze the implementation for correctness and completeness
• Verify copilot reviewer's feedback about duplicates and missing models
• Provide comprehensive review feedback

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Review Summary

I've reviewed the changes in src/providers/index.ts and can confirm that Copilot's feedback is accurate. The PR requires fixes before merging.

❌ Critical Issues

1. Duplicate Model Entry (Line 47)

models: [ModelName.Claude_4_Opus, ModelName.Claude_3_7_Sonnet_20250219, ModelName.Claude_3_5_Sonnet_20241022, ModelName.Claude_3_7_Sonnet_20250219, ModelName.Claude_3_7_Sonnet_20250219_Thinking],

ModelName.Claude_3_7_Sonnet_20250219 appears twice in the array. Remove one occurrence.

2. Missing Default Model (Line 47)
ModelName.Claude_4_Sonnet is set as the default on line 46, but it's missing from the models array. This will cause runtime errors when the system tries to validate the default model.

✅ Recommended Fix

Update line 47 to:

models: [ModelName.Claude_4_Opus, ModelName.Claude_4_Sonnet, ModelName.Claude_3_7_Sonnet_20250219, ModelName.Claude_3_5_Sonnet_20241022, ModelName.Claude_3_7_Sonnet_20250219_Thinking],

✅ Positive Changes

• New Claude 4 models are properly defined in the ModelName enum (lines 18-19)
• Model name strings follow the correct naming convention
• The default model is correctly set to ModelName.Claude_4_Sonnet (line 46)

🔍 Additional Considerations

• The model identifiers (claude-sonnet-4-20250514, claude-opus-4-20250514) appear to follow Anthropic's new naming convention
• Consider verifying these model names match the official Anthropic API documentation

Status: ❌ Changes Requested - Please fix the duplicate entry and add the missing Claude_4_Sonnet model to the array.

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[evgenydmitriev]

@claude implement needed changes:

1. remove duplicate model entry
2. default model should be Claude_4_Opus
3. remove all Anthropic model mentions apart from the Claude 4 models
4. update documentation to reflect the changes

[claude]

Claude finished @evgenydmitriev's task —— View job

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✅ Implementation Complete

Todo List:

• Read CLAUDE.md for repo-specific guidelines (no CLAUDE.md found)
• Read current state of src/providers/index.ts
• Remove duplicate Claude_3_7_Sonnet_20250219 entry
• Change default model to Claude_4_Opus
• Remove all non-Claude-4 Anthropic models from the models array
• Remove old Claude 3 model enum entries that are no longer used
• Search for documentation files that need updates
• Update documentation to reflect changes (updated README.md)
• Commit all changes to the branch

Summary of Changes

I've successfully implemented all the requested changes:

1. ✅ Removed duplicate model entry: Fixed the duplicate Claude_3_7_Sonnet_20250219 in the models array
2. ✅ Changed default model: Updated default from Claude_4_Sonnet to Claude_4_Opus
3. ✅ Removed old Anthropic models: Kept only Claude 4 models (Claude_4_Opus, Claude_4_Sonnet)
4. ✅ Updated documentation: Updated README.md to reflect the new Claude 4 model names

Files modified:

• src/providers/index.ts - Updated model configuration and removed legacy enum entries
• README.md - Updated Available Models section

Commit: 42ce63c

The PR is now ready for review with only Claude 4 models available for the Anthropic provider.

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[Kseymur]

1712n/dedup-service#7 (comment)

it looks like the fallback model was used instead of claude-opus-4-20250514