Who ranks #1 on the Corpusqa 1m leaderboard?
As of August 20, 2026, DeepSeek-V4-Pro-Max by DeepSeek ranks #1 on Corpusqa 1m at 62%. API pricing is $1.74/M input and $3.48/M output.
As of August 20, 2026, DeepSeek-V4-Pro-Max is #1 for Corpusqa 1m at 62%. Ranked by the Corpusqa 1m score 3 models in this index have a published Corpusqa 1m score. Corpusqa 1m leaderboard: rank models by Corpusqa 1m next to live API token prices.
Next step
Auth, billing, and the API layer are already decided. Fork 8 finished AI apps, or have us build the first version with you.
The index
282 models across 33 providers. Search or jump to a lab — every model page stays linked here.







As of August 20, 2026, DeepSeek-V4-Pro-Max by DeepSeek is #1 for Corpusqa 1m at 62%. Ranked by the Corpusqa 1m score This board also tracks Corpusqa 1m. Next on the same board: DeepSeek-V4-Flash-Max and DeepSeek-V4-Flash-0423. This corpusqa 1m leaderboard ranks models by Corpusqa 1m. 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 | Corpusqa 1m | Input /M | Output /M |
|---|---|---|---|---|
| 1 | DeepSeek-V4-Pro-Max | 62% | $1.74 | $3.48 |
| 2 | DeepSeek-V4-Flash-Max | 60.5% | $0.14 | $0.28 |
| 3 | DeepSeek-V4-Flash-0423 | 59.3% | $0.10 | $0.20 |
Rank one eval at a time. All LLM benchmarks.
As of August 20, 2026, DeepSeek-V4-Pro-Max by DeepSeek ranks #1 on Corpusqa 1m at 62%. API pricing is $1.74/M input and $3.48/M output.
The current Corpusqa 1m ranking as of August 20, 2026 is 1. DeepSeek-V4-Pro-Max at 62%; 2. DeepSeek-V4-Flash-Max at 60.5%; 3. DeepSeek-V4-Flash-0423 at 59.3%.
DeepSeek-V4-Flash-0423 is the cheapest scored model on this corpusqa 1m leaderboard at $0.10/M input and $0.20/M output ($0.30 blended). DeepSeek-V4-Pro-Max still leads Corpusqa 1m at 62%.
Not automatically. DeepSeek-V4-Pro-Max leads Corpusqa 1m, but a cheaper scored model can be the better production choice if the quality gap is small. Use the table to weigh Corpusqa 1m 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.
Corpusqa 1m is a public LLM eval (the Corpusqa 1m score). This page ranks models that have published a score, next to live API prices.
This page is the Corpusqa 1m leaderboard. Models are sorted by Corpusqa 1m, 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 Corpusqa 1m score next to live API $/M so you can pick a production SKU, not only a trophy number.