Who ranks #1 on the Contphy leaderboard?
As of August 31, 2026, Seed 2.1 Pro by ByteDance ranks #1 on Contphy at 63.6%. API pricing is $0.89/M input and $4.45/M output.
As of August 31, 2026, Seed 2.1 Pro is #1 for Contphy at 63.6%. Ranked by the Contphy score 2 models in this index have a published Contphy score. Contphy leaderboard: rank models by Contphy 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
345 models across 36 providers. Search or jump to a lab โ every model page stays linked here.









As of August 31, 2026, Seed 2.1 Pro by ByteDance is #1 for Contphy at 63.6%. Ranked by the Contphy score This board also tracks Contphy. Next on the same board: Seed 2.1 Turbo. This contphy leaderboard ranks models by Contphy. 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 | Contphy | Input /M | Output /M |
|---|---|---|---|---|
| 1 | Seed 2.1 Pro | 63.6% | $0.89 | $4.45 |
| 2 | Seed 2.1 Turbo | 61.1% | $0.50 | $2.50 |
Rank one eval at a time. All LLM benchmarks.
As of August 31, 2026, Seed 2.1 Pro by ByteDance ranks #1 on Contphy at 63.6%. API pricing is $0.89/M input and $4.45/M output.
The current Contphy ranking as of August 31, 2026 is 1. Seed 2.1 Pro at 63.6%; 2. Seed 2.1 Turbo at 61.1%.
Seed 2.1 Turbo is the cheapest scored model on this contphy leaderboard at $0.50/M input and $2.50/M output ($3.00 blended). Seed 2.1 Pro still leads Contphy at 63.6%.
Not automatically. Seed 2.1 Pro leads Contphy, but a cheaper scored model can be the better production choice if the quality gap is small. Use the table to weigh Contphy 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.
Contphy is a public LLM eval (the Contphy score). This page ranks models that have published a score, next to live API prices.
This page is the Contphy leaderboard. Models are sorted by Contphy, 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 Contphy score next to live API $/M so you can pick a production SKU, not only a trophy number.