AI Second Opinion

Every AI model knows different things. Ask several at once and you get not only a check, but advice no single model would have given you — including on what you did not ask.

One document goes to several AI models at once, and one report comes back. Sending your document to the AI vendors behind the channels you turn on is the whole point; the tool itself has no server and collects nothing, and on its own it only checks GitHub for a new version, at most once a day (what goes where).

What a real run found

A run of version 1.113.0 on 2026-10-17, on the author's machine and accounts: seven CLI agents, not the published default panel (that one is below). They were asked where this tool should be listed and what would block a listing, with our own table of channels and their rules attached. From that run's REPORT.md, which stays on the author's machine:

† A route the published version leaves off. Live: the link opened when the tool checked it; dead: it returned 404; the rest had moved, blocked the check or could not be checked. A live link does not show that the model read it.

• A rule our own table had missed. It said we meet the entry rules of the awesome-claude-code list. Five of the seven (GPT-6.1 Sol, Qwen, Grok, Gemini, MiMo Pro) pointed to a rule further down its CONTRIBUTING.md: «if your project requires any form of signup or payment, this is a blocker for reviewing it - I can only recommend such a resource on the basis of community adoption signals».
• A disagreement, kept in view. Build an MCP server now? MiMo Flash, the one voice that cited no links: «Build it — as a thin wrapper, started now…». The other six: not now.
• What was cited is not what was read. Gemini cited 29 links; the tool saw it open 2 of them. Muse Spark's two dead links are one real GitHub Docs page, cited twice with part of the path replaced by «...».

The seven worked in parallel: 74 minutes of model time took 26 min 31 s, 15 seconds more than the slowest voice. On your OpenRouter key the published default panel pays for at most two voices: Muse Spark when you have no Meta key ($0.002 in our first run, each web search extra) and, on a machine without opencode, MiMo v2.6 Flash ($0.0003 for our first two-line question); the rest runs on your subscriptions or free (details below), and --dry-run shows the plan before anything is spent. What the console shows during a run is in What one run looks like.

A panel pays off twice:

1. Different knowledge. Each model was trained on its own data and runs in its own harness: the vendor's CLI agent or an API, its own web search, its own way of reading pages. So when you ask "how should I design this" or "review this code", each one answers with its own recommendations, and together they cover more than any one of them.
2. An independent check. The models never see each other's answers. When they agree, that means something; when they disagree, it means more. One AI agreeing with you proves nothing.

Every review answer ends with an UNASKED section. That is where the model puts a wrong assumption, a risk, a better alternative or the thing worth checking next — only what it would defend as significant, and if there is nothing, it says so. The most valuable finding often comes from there.

Send the same document to several independent AI models at once: GPT, Gemini, Grok, Kimi, Qwen, DeepSeek, GLM, MiMo, Muse Spark, NVIDIA Nemotron, StepFun Step, and Claude if you switch it on. You get back:

• what each model found and what it recommends;
• its UNASKED section — what matters that you did not ask about;
• where the models contradict each other;
• a mechanical check for the AI hallucinations a script can catch: dead links, links the model cited without opening them, and quiet refusals.

Any AI agent can install it, not only Claude Code. Any agent with terminal access will do — for example Codex CLI, Cursor, Gemini CLI, opencode, Kimi Code or Qwen Code: this is plain Python with no dependencies. Give the agent the repository link and ask it to install the tool (a ready-made request is under «Install»). The repository carries AGENTS.md, the instructions for AI agents on how to install the tool and run a review, so from then on the agent runs the panel itself. The sequence an agent runs — install.ps1, doctor.py and a free --dry-run — was checked on 2026-10-05 from a plain terminal, without Claude Code.

In Claude Code the plugin reacts to "second opinion" by itself. For any other agent install.ps1/install.sh already installs the skill to every known location (~/.claude, ~/.agents, ~/.codex, ~/.config/opencode, ~/.gemini) so the same phrase works there too; if it doesn't, add one line to its standing instructions: "When I ask for a second opinion, run AI Second Opinion following ~/.claude/skills/model-orchestration/SKILL.md (fallback: ~/.agents/..., ~/.config/opencode/..., or absolute python "$HOME/.claude/skills/model-orchestration/orchestrate.py" --ask "...")".

Pure Python, zero dependencies, MIT license.

Русская версия · How it works, in technical detail · Install · When something breaks · For AI agents

Getting started: accounts and keys

To start you need one OpenRouter key and a couple of free programs. Everything else adds voices but is optional: the tool runs whatever you have and tells you plainly what it skipped.

There is no free Kimi any more. NVIDIA retired its free Kimi K3 on 2026-10-15: the endpoint answers HTTP 410 «end of life». Versions 1.106–1.111 asked for a step «2b» (the Kimi Code CLI and an NVIDIA_NIM_API_KEY); since 1.112.0 the Kimi Code CLI is unused, the nvkimik3 channel ships switched off, and the cheap panel has no Kimi voice. The NVIDIA key is used again since 1.114.0, by Step 5 Preview and Nemotron 3 Ultra (step 2b above). Kimi K3 answers in the standard panel through OpenRouter (kimik3, paid). «only kimik3» starts that channel alone; «only kimi» does too on the standard panel, while on the default cheap panel it stops and asks you to name kimik3: a family word never moves you from free to paid in silence.

There is no free Muse Spark any more. On 2026-10-17 opencode stopped serving its free Muse Spark 1.3 (opencode/muse-spark-1.3-contributor-free): the call answers «provider.no-route: Model unavailable» and the model is gone from opencode models. Since 1.113.3 its channel ocspark13free ships switched off, and the cheap panel's Spark voice is paid; since 1.113.8 it is Muse Spark 1.2 Contributor: spark12cont on a Meta key, otherwise orspark12cont on your OpenRouter key, $0.10 / $0.20 per 1M tokens either way (the price of the Spark 1.3 Contributor it replaces, which took $0.002 in our first run); the plan marks the OpenRouter route PAID. Spark 1.3 Contributor (spark13cont, orspark13cont) still starts when you name it. Instead it opencode gave three more free voices, run live on 2026-10-18: Nemotron 3 Ultra (retired in 1.116.1 — its model left opencode on 2026-10-29), GLM 5.3 Flash and DeepSeek V4.1 Flash; since 1.113.7 GLM and DeepSeek wait in reserve, because they share MiMo Flash's daily allowance (see the cheap panel below). Free models come and go without notice (NVIDIA's free Kimi K3 ended two days earlier); when one disappears, the run names it and says what to do, and opencode models is the live list.

To check what was found: python doctor.py. It prints which keys and programs it found, and never prints a key itself: only present / absent and the length.

🔴 Do not paste a key into a chat with an AI assistant. Set it yourself in the terminal; why is explained under «Install».

How to ask

In Claude Code with the plugin (and in any agent you gave the line from the top of this page) just say it in plain words:

From a terminal the same is done with flags: --panel cheap (the default), --panel standard, --route "only CLI", --only codex, --skip openrouter. You can see the plan before anything is spent, for free: python routing.py or --dry-run.

Panels: line-up as of 1.116.2, prices as dated below

How to read the tables:

• Transport. A CLI agent is the vendor's program on your computer (opencode, agy, grok, kimi, codex, claude). It runs on your subscription or for free and needs no OpenRouter key (a provider you add to opencode yourself bills you per call). OpenRouter is an API request on your key, paid per token.
• Effort is how hard the model thinks. Where a model takes a level, the tool sets the highest it accepts; the rows say where a free model takes none and where agy decides itself.
• Price per 1M tokens is from the OpenRouter catalogue on 2026-10-05, input / output; a row that names another date was priced then.
• Per run is the median of our runs from 1 September to 5 October 2026; n is the number of runs, each counted once. Yours will be higher or lower: it depends on the size of the document and the number of web searches. The tool prints the exact amount at the end of every run.

The cheap panel — the default: 6 models

If you lack the main transport, a fallback route to the same model takes over:

• Muse Spark has no free route since 2026-10-17: with a Meta key it runs as spark12cont, otherwise as orspark12cont (OpenRouter), both Muse Spark 1.2 Contributor since 1.113.8; both cost $0.10 / $0.20, and the plan marks the OpenRouter one PAID. If the Contributor model fails, both retry on the Standard Muse Spark 1.2 at $1.25 / $4.25 (12.5× the input price, 21× the output); the OpenRouter route's spend guard stops a review at $1.00. On an OpenCode Go plan it can run on the plan instead (ocspark12go, below). Spark 1.3 Contributor (spark13cont, orspark13cont, ocspark13go) is off and starts only when you name it.
• Nemotron 3 Ultra runs on NVIDIA's free API (nvnemotron3ultra, since 1.114.0) when NVIDIA_NIM_API_KEY is set; the opencode copy (ocnemotron3ultrafree) retired in 1.116.1 after its model left opencode. With no NVIDIA key the cheap panel lists nvnemotron3ultra and it ends at once, naming the missing key and spending nothing. ornemotron3ultra (OpenRouter: a free model, only its web searches are paid, ≈ $0.07 a run, n=6) takes its place on the standard panel only, and as an --ask extra on an OpenRouter key.
• MiMo v2.6 Flash has no free route but opencode's (nor have GLM 5.3 Flash and DeepSeek V4.1 Flash, below). Without opencode, since 1.114.0, its PAID copy ormimo26flash carries the voice (OpenRouter xiaomi/mimo-v2.6-flash, $0.14 / $0.28 per 1M; our first call took 1.9 s and $0.0003); the plan marks it PAID. It never star