diff --git a/package.json b/package.json
index 347d2f2..d09c85e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@ztimson/ai-utils",
-	"version": "0.8.11",
+	"version": "0.8.12",
 	"description": "AI Utility library",
 	"author": "Zak Timson",
 	"license": "MIT",
diff --git a/src/llm.ts b/src/llm.ts
index 3eb8e12..81d03f9 100644
--- a/src/llm.ts
+++ b/src/llm.ts
@@ -1,3 +1,4 @@
+import {sum} from '@tensorflow/tfjs';
 import {JSONAttemptParse} from '@ztimson/utils';
 import {AbortablePromise, Ai} from './ai.ts';
 import {Anthropic} from './antrhopic.ts';
@@ -357,11 +358,30 @@ class LLM {
 	 * @returns {Promise<{} | {} | RegExpExecArray | null>}
 	 */
 	async json(text: string, schema: string, options?: LLMRequest): Promise<any> {
-		const code = await this.code(text, {...options, system: [
-			options?.system,
-			`Only respond using JSON matching this schema:\n\`\`\`json\n${schema}\n\`\`\``
-		].filter(t => !!t).join('\n')});
-		return code ? JSONAttemptParse(code, {}) : null;
+		let system =  `Your job is to convert input to JSON. Call \`submit\` exactly once with JSON matching this schema:\n\`\`\`json\n${schema}\n\`\`\``;
+		if(options?.system) system += '\n\n' + options.system;
+		return new Promise(async (resolve, reject) => {
+			let done = false;
+			const resp = await this.ask(text, {
+				temperature: 0.3,
+				...options,
+				system,
+				tools: [{
+					name: 'submit',
+					description: 'Submit JSON',
+					args: {json: {type: 'string', description: 'Javascript parsable JSON string', required: true}},
+					fn: (args) => {
+						try {
+							const json = JSON.parse(args.json);
+							resolve(json);
+							done = true;
+						} catch { return 'Invalid JSON'; }
+						return 'Done';
+					}
+				}, ...(options?.tools || [])],
+			});
+			if(!done) reject(`AI failed to create summary: ${resp}`);
+		});
 	}
 
 	/**
@@ -371,8 +391,28 @@ class LLM {
 	 * @param options LLM request options
 	 * @returns {Promise<string>} Summary
 	 */
-	summarize(text: string, tokens: number = 500, options?: LLMRequest): Promise<string | null> {
-		return this.ask(text, {system: `Generate the shortest summary possible <= ${tokens} tokens. Output nothing else`, temperature: 0.3, ...options});
+	async summarize(text: string, tokens: number = 500, options?: LLMRequest): Promise<string | null> {
+		let system =  `Your job is to summarize the users message. Call \`submit\` exactly once with the shortest summary possible that's <= ${tokens} tokens. Output nothing else`;
+		if(options?.system) system += '\n\n' + options.system;
+		return new Promise(async (resolve, reject) => {
+			let done = false;
+			const resp = await this.ask(text, {
+				temperature: 0.3,
+				...options,
+				system,
+				tools: [{
+					name: 'submit',
+					description: 'Submit summary',
+					args: {summary: {type: 'string', description: 'Summarization', required: true}},
+					fn: (args) => {
+						done = true;
+						resolve(args.summary || null);
+						return 'Done';
+					}
+				}, ...(options?.tools || [])],
+			});
+			if(!done) reject(`AI failed to create summary: ${resp}`);
+		});
 	}
 }