Who ranks #1 on the Mmlu Cot leaderboard?
As of August 20, 2026, Llama 3.1 405B Instruct by Meta ranks #1 on Mmlu Cot at 88.6%. API pricing is $0.89/M input and $0.89/M output.
As of August 20, 2026, Llama 3.1 405B Instruct is #1 for Mmlu Cot at 88.6%. Ranked by the Mmlu Cot score 3 models in this index have a published Mmlu Cot score. Mmlu Cot leaderboard: rank models by Mmlu Cot next to live API token prices.
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282 models across 33 providers. Search or jump to a lab — every model page stays linked here.







As of August 20, 2026, Llama 3.1 405B Instruct by Meta is #1 for Mmlu Cot at 88.6%. Ranked by the Mmlu Cot score This board also tracks Mmlu Cot. Next on the same board: Llama 3.1 70B Instruct and Llama 3.1 8B Instruct. This mmlu cot leaderboard ranks models by Mmlu Cot. Scores come from public evals. Prices are the live API rates in the table above.
Sources: OpenAI API pricing (https://developers.openai.com/api/docs/pricing); Anthropic Claude API pricing (https://platform.claude.com/docs/en/about-claude/pricing); Gemini API pricing (https://ai.google.dev/gemini-api/docs/pricing)
| Rank | Model | Mmlu Cot | Input /M | Output /M |
|---|---|---|---|---|
| 1 | Llama 3.1 405B Instruct | 88.6% | $0.89 | $0.89 |
| 2 | Llama 3.1 70B Instruct | 86% | $0.20 | $0.20 |
| 3 | Llama 3.1 8B Instruct | 73% | $0.03 | $0.03 |
Rank one eval at a time. All LLM benchmarks.
As of August 20, 2026, Llama 3.1 405B Instruct by Meta ranks #1 on Mmlu Cot at 88.6%. API pricing is $0.89/M input and $0.89/M output.
The current Mmlu Cot ranking as of August 20, 2026 is 1. Llama 3.1 405B Instruct at 88.6%; 2. Llama 3.1 70B Instruct at 86%; 3. Llama 3.1 8B Instruct at 73%.
Llama 3.1 8B Instruct is the cheapest scored model on this mmlu cot leaderboard at $0.03/M input and $0.03/M output ($0.06 blended). Llama 3.1 405B Instruct still leads Mmlu Cot at 88.6%.
Not automatically. Llama 3.1 405B Instruct leads Mmlu Cot, but a cheaper scored model can be the better production choice if the quality gap is small. Use the table to weigh Mmlu Cot against input/output price, context window, and related evals.
Scores and API prices on this page are refreshed from published evals and provider rates. The snapshot is labeled August 20, 2026. Treat it as a current index, not a one-off blog post.
Mmlu Cot is a public LLM eval (the Mmlu Cot score). This page ranks models that have published a score, next to live API prices.
This page is the Mmlu Cot leaderboard. Models are sorted by Mmlu Cot, with input and output token prices on the same row so you can weigh score against cost. Official boards often omit price; that comparison is the point of this index.
Official eval pages own the methodology. This page keeps the published Mmlu Cot score next to live API $/M so you can pick a production SKU, not only a trophy number.