Use case

Best AI models for structured / JSON outputs

Structured-output mode forces the model to conform to a JSON schema. Eliminates parse errors and makes LLMs usable in deterministic data pipelines.

Top 25 models for JSON schema enforcement

#ModelProviderContextInput price / 1MTier
1Tongyi DeepResearch 30B A3BAlibaba131K
Long context (128K+)
$0.09Budget
2Anthropic: Claude Haiku 5.5 (batch)Anthropic1M
Ultra context (1M+)
$0.05Budget
3Apodex: Apodex 1.1 Mini (free)Apodex262K
Long context (128K+)
$0.00Budget
4Arcee AI: Trinity Large Preview (free)Arcee Ai131K
Long context (128K+)
$0.00Budget
5Arcee AI: Trinity MiniArcee Ai131K
Long context (128K+)
$0.04Budget
6Arcee AI: Trinity Mini (free)Arcee Ai131K
Long context (128K+)
$0.00Budget
7ByteDance Seed: Seed 1.6 FlashBytedance Seed262K
Long context (128K+)
$0.07Budget
8DeepSeek: DeepSeek V4 Flash 0423DeepSeek1.0M
Ultra context (1M+)
$0.09Budget
9DeepSeek: DeepSeek V4 Flash 0731DeepSeek1.0M
Ultra context (1M+)
$0.02Budget
10DeepSeek: DeepSeek V4 Flash 0731 (free)DeepSeek1.0M
Ultra context (1M+)
$0.00Budget
11DeepSeek: DeepSeek V4.1 FlashDeepSeek1.0M
Ultra context (1M+)
$0.04Budget
12Dots Studio: Dots3-Note Preview (free)Dots Studio512K
Long context (128K+)
$0.00Budget
13Google: Gemini 2.0 Flash LiteGoogle1.0M
Ultra context (1M+)
$0.07Budget
14Google: Gemini 2.5 Flash Lite (batch)Google1.0M
Ultra context (1M+)
$0.05Budget
15Google: Gemma 3 12BGoogle131K
Long context (128K+)
$0.05Budget
16Google: Gemma 3 27BGoogle131K
Long context (128K+)
$0.08Budget
17Google: Gemma 4 26B A4BGoogle262K
Long context (128K+)
$0.08Budget
18Google: Gemma 4 31BGoogle262K
Long context (128K+)
$0.09Budget
19meta-llama/Llama-3.1-8B-InstructMeta131K
Long context (128K+)
$0.05Budget
20OpenAI: gpt-oss-20bOpenAI131K
Long context (128K+)
$0.02Budget
21Qwen: Qwen3 32BQwen131K
Long context (128K+)
$0.08Budget
22IBM: Granite 4.1 8BIbm Granite131K
Long context (128K+)
$0.05Budget
23IBM: Granite 4.2 8BIbm Granite131K
Long context (128K+)
$0.06Budget
24Inception: Mercury 2.5Inception260K
Long context (128K+)
$0.04Budget
25Inception: Mercury 2.5 PreviewInception260K
Long context (128K+)
$0.04Budget

Frequently asked questions

What is structured output?

A mode where the model is constrained to emit JSON conforming to a schema you provide. Eliminates malformed-JSON retries.

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