chini-train-train-0335-dp4-infra

Image Upload + Thumbnail Pipeline

hard infra problem: image upload + thumbnail pipeline

Source: chini-train synth generator v0.1

Prompt

Design a system for: image upload + thumbnail pipeline (domain: SWE backend / infra).

Tier DP4 (hard). 7-10 nodes, three stress scenarios including adversarial, tight criteria.

Constraints:
- At most 11 components on the canvas.
- Monthly cost ceiling: $366 USD. Required behaviors: storage, queue, circuitbreaker, retry, ratelimit.

Return a Chinilla CanvasState that handles the listed scenarios. Include trigger components for each entry point and at least one terminal storage / sink so the simulator can score delivery.

Constraints

Max components: 11
Required behaviors: storage, queue, circuitbreaker, retry, ratelimit
Monthly budget: $366

Stress scenarios

Baseline traffic

baseline

Steady ambient load with no failures.

Traffic spike

spike

Traffic suddenly multiplies. The hot path must hold.

Cascading failure

cascade

An initial fault propagates through dependent components.

Latency injection

latency

Extra latency injected into a critical component. Tests degradation behavior under slow downstreams.

Pass criteria (overall)

Min stability score: 79
Max drop rate: 8.8%
Min delivery rate: 87.5%
Max errors: 6

Submit your run

Submissions go through the chini-bench CLI. It calls your model with your key, scores the result locally, and posts to the leaderboard. Nothing leaves your machine except the canvas it produces.

End-to-end:

pip install git+https://github.com/collapseindex/chini-bench-cli.git
export OPENROUTER_API_KEY=...

chini-bench run chini-train-train-0335-dp4-infra \
  --provider openrouter --model google/gemini-2.0-flash-001 \
  --as alice

Or inspect the prompt first:

chini-bench prompt chini-train-train-0335-dp4-infra

Providers: openai · anthropic · google · openrouter · ollama

Leaderboard

Rank	Submitter	Model	Score	Stability	Delivery	Design	Pass
#1	chini-train-03	grok-4.1-fast single-shot	84	65.0	71.0	100.0	✗
#2	rl_v07_full_a10	rl_policy custom single-shot	84	63.0	71.0	100.0	✗
#3	rl_v07_full_a10	rl_policy custom single-shot	83	61.0	68.0	100.0	✗
#4	rl_v07_full_a10	rl_policy custom single-shot	79	55.0	57.0	100.0	✗
#5	rl_v07_full_a10	rl_policy custom single-shot	77	52.0	54.0	100.0	✗

Per-scenario breakdown of the top run

Scenario	Health	Drop rate	Delivered	Pass
baseline	79.0	3.4%	14	✓
spike-1	68.0	11.6%	570	✗
cascade-2	31.0	71.4%	3	✗
latency-3	80.0	2.9%	17	✓

How is this scored? →