# Hanzo Enso — presets and research runs > Enso frontier model router: dynamic routing across top AI models, benchmarked on GPQA Diamond and LiveCodeBench for quality and cost. [Models](https://hanzo.ai/models)/Enso Research runs · GPQA Diamond and LiveCodeBench # Enso, measured Enso is our frontier family, and the router that picks among 500+ models when you ask for auto. A vendor’s published score and your own are rarely the same number, so every row below was run here, ours and theirs on the same questions, and each one links its run. [Start using Enso](https://platform.hanzo.ai)[The Enso product](https://hanzo.ai/enso) Instant Guest API Keyguest_temp_key No account or sign up required Test right now from your terminal. No credentials needed: cURL · instant guest request Copy ``` curl https://api.hanzo.ai/v1/chat/completions \ -H "Authorization: Bearer guest_temp_key" \ -d '{"model": "zen-free", "messages": [{"role": "user", "content": "hello"}]}' ``` ## Three presets Ultra, Pro and Flash. A preset is a pool and a rate, not another name for one model; the band is what you are billed, input then output, per million tokens. The runs below measure the router itself, not a preset. ### Enso Ultra Flagship enso-ultra… For work where a wrong answer is expensive: research, security review and long autonomous runs. ### Enso Pro enso-pro… For coding, code review and agents that answer while someone waits. ### Enso Flash Default enso… For chat, extraction, classification and simple agent steps at volume. ## Every row a research run The router beside single models from other labs, on the same questions, read from api.hanzo.ai when the page opens: each run’s accuracy, its count, and what its tokens cost at list prices on the whole set. GPQA Diamond · enso.gpqa_diamond, split test · every row a research run, read from api.hanzo.ai when the page opens · sorted by accuracy System Accuracy Correct Run cost Tag, date enso[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.gpqa_diamond-test-frontier-enso) 92.9% 184 of 198 $5.58 frontier · 2026-07-19 enso-ultra[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.gpqa_diamond-test-frontier-enso-ultra) 92.9% 184 of 198 $20.20 frontier · 2026-07-19 gpt-5.6-sol[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.gpqa_diamond-test-frontier-gpt-5.6-sol) 91.9% 182 of 198 $4.08 frontier · 2026-07-19 opus-5.5[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.gpqa_diamond-test-fill-opus-5.5) 90.9% 180 of 198 $3.78 fill · 2026-10-16 sonnet-5.5[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.gpqa_diamond-test-fill-sonnet-5.5) 90.4% 179 of 198 $1.85 fill · 2026-10-16 gpt-5.5[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.gpqa_diamond-test-frontier-gpt-5.5) 89.9% 178 of 198 $11.95 frontier · 2026-07-19 fable-5.1[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.gpqa_diamond-test-fill-fable-5.1) 87.9% 174 of 198 $8.23 fill · 2026-10-16 opus-4.8[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.gpqa_diamond-test-frontier-opus-4.8) 86.4% 171 of 198 $3.66 frontier · 2026-07-19 haiku-5.5[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.gpqa_diamond-test-fill-haiku-5.5) 83.3% 165 of 198 $0.190 fill · 2026-10-16 fable-5[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.gpqa_diamond-test-frontier-fable-5) 82.8% 164 of 198 $9.87 frontier · 2026-07-19 claude-5-sonnet[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.gpqa_diamond-test-frontier-claude-5-sonnet) 77.8% 154 of 198 $5.66 frontier · 2026-07-19 deepseek-v4-pro[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.gpqa_diamond-test-frontier-deepseek-v4-pro) 74.2% 147 of 198 $0.221 frontier · 2026-07-19 gpt-4o[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.gpqa_diamond-test-frontier-gpt-4o) 54.5% 108 of 198 $1.58 frontier · 2026-07-19 Each system's frontier run, else its v1 run, else its fill run: the three put the same prompts to a model. A run cost is the input and output tokens the run records at the price list's rate for its own model id, the router's included, at list prices, Oct 30, 2026; a dash is a run that records no tokens, a model the list does not price, or a list that could not be read. LiveCodeBench · enso.livecodebench, split v6-recent-175 · every row a research run, read from api.hanzo.ai when the page opens · sorted by accuracy System Accuracy Correct Run cost Tag, date enso[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.livecodebench-v6-recent-175-frontier-enso) 93.7% 164 of 175 $8.59 frontier · 2026-07-19 gpt-5.6-sol[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.livecodebench-v6-recent-175-frontier-gpt-5.6-sol) 93.1% 163 of 175 $6.14 frontier · 2026-07-19 gpt-5.5[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.livecodebench-v6-recent-175-v1-gpt-5.5) 91.4% 160 of 175 $15.60 v1 · 2026-07-16 opus-5.5[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.livecodebench-v6-recent-175-fill-opus-5.5) 80.0% 140 of 175 $5.94 fill · 2026-10-16 fable-5.1[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.livecodebench-v6-recent-175-fill-fable-5.1) 80.0% 140 of 175 $18.40 fill · 2026-10-16 fable-5[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.livecodebench-v6-recent-175-frontier-fable-5) 78.3% 137 of 175 $28.08 frontier · 2026-07-19 haiku-5.5[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.livecodebench-v6-recent-175-fill-haiku-5.5) 74.9% 131 of 175 $0.294 fill · 2026-10-16 sonnet-5.5[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.livecodebench-v6-recent-175-fill-sonnet-5.5) 72.0% 126 of 175 $3.74 fill · 2026-10-16 opus-4.8[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.livecodebench-v6-recent-175-v1-opus-4.8) 72.0% 126 of 175 $13.14 v1 · 2026-07-16 deepseek-v4-pro[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.livecodebench-v6-recent-175-frontier-deepseek-v4-pro) 52.6% 92 of 175 $0.230 frontier · 2026-07-19 gpt-4o[run](https://api.hanzo.ai/v1/research/runs?org=hanzo&id=enso.livecodebench-v6-recent-175-frontier-gpt-4o) 21.1% 37 of 175 $1.40 frontier · 2026-07-19 Each system's frontier run, else its v1 run, else its fill run: the three put the same prompts to a model. A run cost is the input and output tokens the run records at the price list's rate for its own model id, the router's included, at list prices, Oct 30, 2026; a dash is a run that records no tokens, a model the list does not price, or a list that could not be read. ## Build on the tier that fits Start on Flash. Move a request up to Pro or Ultra when it earns the cost, by changing the model id and nothing else. [Get API access](https://platform.hanzo.ai)[Explore Zen (open weights)](https://hanzo.ai/zen)