Who ranks #1 on the Openbookqa leaderboard?
As of August 31, 2026, Phi-3.5-MoE-instruct by Microsoft ranks #1 on Openbookqa at 89.6%. API pricing is $0.07/M input and $0.14/M output.
As of August 31, 2026, Phi-3.5-MoE-instruct is #1 for Openbookqa at 89.6%. Ranked by the Openbookqa score 5 models in this index have a published Openbookqa score. Openbookqa leaderboard: rank models by Openbookqa next to live API token prices.
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As of August 31, 2026, Phi-3.5-MoE-instruct by Microsoft is #1 for Openbookqa at 89.6%. Ranked by the Openbookqa score This board also tracks Openbookqa. Next on the same board: Phi 4 Mini and Phi-3.5-mini-instruct. This openbookqa leaderboard ranks models by Openbookqa. 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 | Openbookqa | Input /M | Output /M |
|---|---|---|---|---|
| 1 | Phi-3.5-MoE-instruct | 89.6% | $0.07 | $0.14 |
| 2 | Phi 4 Mini | 79.2% | $0.08 | $0.35 |
| 3 | Phi-3.5-mini-instruct | 79.2% | $0.10 | $0.10 |
| 4 | Mistral NeMo Instruct | 60.6% | $0.15 | $0.15 |
| 5 | Hermes 3 70B | 49.4% | $0.35 | $1.40 |
Rank one eval at a time. All LLM benchmarks.
As of August 31, 2026, Phi-3.5-MoE-instruct by Microsoft ranks #1 on Openbookqa at 89.6%. API pricing is $0.07/M input and $0.14/M output.
The current Openbookqa ranking as of August 31, 2026 is 1. Phi-3.5-MoE-instruct at 89.6%; 2. Phi 4 Mini at 79.2%; 3. Phi-3.5-mini-instruct at 79.2%.
Phi-3.5-mini-instruct is the cheapest scored model on this openbookqa leaderboard at $0.10/M input and $0.10/M output ($0.20 blended). Phi-3.5-MoE-instruct still leads Openbookqa at 89.6%.
Not automatically. Phi-3.5-MoE-instruct leads Openbookqa, but a cheaper scored model can be the better production choice if the quality gap is small. Use the table to weigh Openbookqa 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 31, 2026. Treat it as a current index, not a one-off blog post.
Openbookqa is a public LLM eval (the Openbookqa score). This page ranks models that have published a score, next to live API prices.
This page is the Openbookqa leaderboard. Models are sorted by Openbookqa, 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 Openbookqa score next to live API $/M so you can pick a production SKU, not only a trophy number.