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Free Public Toolkit · No Account Required

Find AI models for your task.
Estimate what they cost.

Whether you’re choosing a model for coding, research, or writing—or adding safety checks to an agent—RunLog combines measured benchmark results from nine prepared tasks, token-based cost estimates, and local developer tools.

Free browser tools (no login) 9 prepared coding, research & writing tasks MIT-licensed local CLI & SDKs
For Everyone & First-Time Builders

Choosing a model for your workflow or app?

Start with the task you care about—coding, research, or writing—and adjust how much quality, speed, and cost matter to you. Shortlist candidates from the nine-task benchmark, then estimate your monthly provider bill.

For Software & AI Engineers

Evaluating model costs & protecting agent runtimes?

Compare lower-cost models that scored near the top on these nine prepared tasks, model multi-turn token assumptions in the Pricer, and integrate local retry circuit breakers (Loop-Guard) and trace checks (Ship-Check).

Four tools with clear boundaries

Browser tools are free to use without an account; the three downloadable local CLI/SDK tools are MIT-licensed.
01 · Public Benchmark

Compare Models

Explore task-specific scores, response times, and measured answer costs across nine coding, research, and writing samples.

Availability: Free browser tool · No account
Compare Models →
02 · Cost Estimator

Prompt Pricer

Estimate token counts and monthly provider charges from your own prompt text, expected output length, and call volume.

Availability: Free browser tool + MIT offline CLI
Estimate Cost →
03 · Runtime Check

Loop-Guard

Detect repeated tool calls, retry cycles, and observed usage inside your application before loops spiral.

Availability: Browser demo + MIT Python/TS SDKs
Try Loop-Guard →
04 · Pre-Release Check

Ship-Check

Check recorded agent tool traces from your own test harness against step, tool-use, and cost assertions locally or in CI.

Availability: MIT Python 3.12 local runner
See Ship-Check →

Plain-English answers & scope limits

Do I need an account or API key to explore?

No. The benchmark explorer, cost calculator, and loop simulator run in your browser without an account or payment. Your own provider charges apply if you run models yourself.

Will benchmark scores match my own project?

Benchmarks measure nine prepared tasks using reference-based AI ratings. Costs reflect those nine completed answers. Use them to build a shortlist, then test your own inputs.

What is open source under MIT vs. hosted?

The downloadable Prompt Pricer CLI, Loop-Guard SDKs, and Ship-Check runner are MIT-licensed with public checksums. The hosted website’s full implementation is not published in those repositories.

Built and maintained by Francisco Garrett. Inspect the engineering architecture, test suites, and evaluation provenance on the About & Engineering page →