Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add Vironnimo/vbot --skill free-modelsgit clone --depth 1 https://github.com/Vironnimo/vbotWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/vironnimo/vbot/free-models)<a href="https://agentmods.dev/skills/vironnimo/vbot/free-models"><img src="https://agentmods.dev/badge/skills/vironnimo/vbot/free-models/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/vironnimo/vbot/free-models"><img src="https://agentmods.dev/badge/skills/vironnimo/vbot/free-models.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00039 | $0.00911 |
| Opus 5.5 | $0.00016 | $0.00364 |
| Sonnet 5.5 | $0.00008 | $0.00182 |
| Haiku 4.5 | $0.00004 | $0.00091 |
Grade A, and why
free-models scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 67 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Free Models
Free capacity serves delegated work. You route suitable Sub-Agent Runs to free
Models through the subagent Tool's per-Run model override (<provider>/<model-id>,
applies only to that Run). You never change the calling Agent's own Model, any stored
configuration, or a Project default through this skill, and never do so silently.
Non-negotiable rules
- Tools gate. A Sub-Agent without tool calling is broken, not cheap. Propose only
Models whose catalog record confirms tool support (
vbot model show <id>), and only ids that appear invbot model list— a configured, usable Connection. - No silent paid fallback. When a free Model fails or returns unusable output, rotate to another free Model, wait out rate limits, or report the gap. Moving the work to a paid Model spends money and requires the user's explicit consent first.
- Quality boundary. Ask before routing security-sensitive, architectural, irreversible, or otherwise high-stakes work to a weaker Model. Saving cents is never worth silently degrading an outcome the user cares about.
- Privacy boundary. Free tiers are often paid in data — several free endpoints log inputs or train on them. Never put credentials, secrets, or tokens into delegated task text. Flag sensitive content to the user and prefer zero-retention, paid, or local alternatives for it.
- Rate limits are real. OpenRouter free variants allow 20 requests per minute, 50 requests per day (raised to 1000 once the account has purchased at least $10 in credits, ever); expect HTTP 429 as routine. Spread siblings across different free Models instead of stacking parallel Runs on one, and treat exhausted quotas as a reason to defer work, not to fall back to paid.
- Verify before trusting. The curated list in
references/free-models.mdis a dated hint. Free lineups churn weekly — confirm current free status and availability live before relying on any entry (recipe in that file).
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago Changed · -84 tokens per session 6ca1be6b156a
- 1mo ago First seen · 67 lines · 123 tokens per session scan A d6b422978897
free-models is a skill published in the GitHub repository Vironnimo/vbot (1 stars, last pushed yesterday), licensed Apache-2.0. It adds 39 tokens to every session and 911 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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