Adds support for Claude 3 models

Author: eamodio

CHANGELOG.md

@@ -8,6 +8,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 
 ### Added
 
+- Adds support for Anthropic's Claude 3 Opus & Sonnet models for GitLens' experimental AI features
 - Adds a _Compare with Common (Merge) Base_ command to branches in the _Commit Graph_ and views to review the changes if the selected branch were to be merged by comparing the common ancestor (merge base) with the current branch to the selected branch
 - Adds a _Stash All Changes_ command to Source Control repository toolbar (off by default)
 - Adds the repository name as a prefix to worktree name when adding to the current workspace

package.json

@@ -3324,12 +3324,16 @@
 						"enum": [
 							"claude-instant-1",
 							"claude-2",
-							"claude-2.1"
+							"claude-2.1",
+							"claude-3-opus-20240229",
+							"claude-3-sonnet-20240229"
 						],
 						"enumDescriptions": [
 							"Claude Instant 1.2",
 							"Claude 2",
-							"Claude 2.1"
+							"Claude 2.1",
+							"Claude 3 Opus",
+							"Claude 3 Sonnet"
 						],
 						"markdownDescription": "Specifies the Anthropic model to use for GitLens' experimental AI features",
 						"scope": "window",

src/ai/aiProviderService.ts

@@ -245,7 +245,9 @@ export function getMaxCharacters(model: OpenAIModels | AnthropicModels, outputLe
 		case 'gpt-3.5-turbo': // Will point to gpt-3.5-turbo-1106 starting Dec 11, 2023
 			tokens = 4096;
 			break;
-		case 'claude-2.1': // 200,000 tokens
+		case 'claude-3-opus-20240229': // 200,000 tokens
+		case 'claude-3-sonnet-20240229':
+		case 'claude-2.1':
 			tokens = 200000;
 			break;
 		case 'claude-2': // 100,000 tokens