Education · best for
Best AI model for Essay Grading (2026)
Consistent feedback on student writing. Ranked from 343 live models on the OpenRouter catalog, weighted for reasoning quality, context window, structured output.
| # | Model | Score | In / 1M | Out / 1M | Context | |
|---|---|---|---|---|---|---|
| 1 | Qwen: Qwen3.6 Plusqwen/qwen3.6-plus | 132 | $0.33 | $1.95 | 1,000,000 | Try → |
| 2 | xAI: Grok 4.20x-ai/grok-4.20 | 132 | $2.00 | $6.00 | 2,000,000 | Try → |
| 3 | OpenAI: GPT-5.4 Nanoopenai/gpt-5.4-nano | 132 | $0.20 | $1.25 | 400,000 | Try → |
| 4 | OpenAI: GPT-5.4 Miniopenai/gpt-5.4-mini | 132 | $0.75 | $4.50 | 400,000 | Try → |
| 5 | OpenAI: GPT-5.4openai/gpt-5.4 | 132 | $2.50 | $15.00 | 1,050,000 | Try → |
| 6 | Google: Gemini 3.1 Flash Lite Previewgoogle/gemini-3.1-flash-lite-preview | 132 | $0.25 | $1.50 | 1,048,576 | Try → |
| 7 | Qwen: Qwen3.5-Flashqwen/qwen3.5-flash-02-23 | 132 | $0.07 | $0.26 | 1,000,000 | Try → |
| 8 | Google: Gemini 3.1 Pro Preview Custom Toolsgoogle/gemini-3.1-pro-preview-customtools | 132 | $2.00 | $12.00 | 1,048,576 | Try → |
| 9 | OpenAI: GPT-5.3-Codexopenai/gpt-5.3-codex | 132 | $1.75 | $14.00 | 400,000 | Try → |
| 10 | Google: Gemini 3.1 Pro Previewgoogle/gemini-3.1-pro-preview | 132 | $2.00 | $12.00 | 1,048,576 | Try → |
| 11 | Qwen: Qwen3.5 Plus 2026-02-15qwen/qwen3.5-plus-02-15 | 132 | $0.26 | $1.56 | 1,000,000 | Try → |
| 12 | Google: Gemini 3 Flash Previewgoogle/gemini-3-flash-preview | 132 | $0.50 | $3.00 | 1,048,576 | Try → |
| 13 | OpenAI: GPT-5.2openai/gpt-5.2 | 132 | $1.75 | $14.00 | 400,000 | Try → |
| 14 | xAI: Grok 4.1 Fastx-ai/grok-4.1-fast | 132 | $0.20 | $0.50 | 2,000,000 | Try → |
| 15 | OpenAI: GPT-5.1openai/gpt-5.1 | 132 | $1.25 | $10.00 | 400,000 | Try → |
How we ranked these
For Essay Grading, we weight models on reasoning quality, context window, structured output. Higher means better. Scores combine OpenRouter's model metadata (context length, modality support, tool calling, structured output, reasoning capability) with public pricing. See full methodology →
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