Mythical Pro Agents

# Mythical Pro Agents

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The headline frontier models — the ones marked Pro — are slow, expensive, and gated behind separate consumer subscriptions or per-token bills. Oracle is the single CLI that talks to all of them with the same flags, the same session store, and the same bundling rules.

## #The lineup

Model | Engine | API id | Browser model picker | Speciality
--- | --- | --- | --- | ---
GPT-5.5 Pro | API or browser | `gpt-5.5-pro` (default) | "GPT-5.5 Pro" / "5.5 Pro" | Long-form code review, planning
GPT-5.5 | API or browser | `gpt-5.5` | "GPT-5.5" | Fast everyday consults
GPT-5.4 Pro | API or browser | `gpt-5.4-pro` | "5.4 Pro" | Mature Pro workflow
GPT-5.4 | API or browser | `gpt-5.4` | "GPT-5.4" | Mid-tier general
GPT-5.2 Pro | API or browser | `gpt-5.2-pro` | "5.2 Pro" | Heavy reasoning
GPT-5.2 | API or browser | `gpt-5.2` | "GPT-5.2" | Mid-tier
GPT-5.1 Pro | API or browser | `gpt-5.1-pro` | "5.1 Pro" | Long context
GPT-5.1 | API or browser | `gpt-5.1` | "GPT-5.1" | General
GPT-5.1 Codex | API only | `gpt-5.1-codex` | — | Code generation
Gemini 3.1 Pro | API or browser | `gemini-3.1-pro` | "3.1 Pro" | Long-context multimodal, image gen, YouTube
Gemini 3.5 Flash | API or browser | `gemini-3.5-flash` | "3.5 Flash" | Fast all-around Gemini work
Gemini 3.1 Flash-Lite | API or browser | `gemini-3.1-flash-lite` | "3.1 Flash-Lite" | Lowest-cost, fastest Gemini work
Claude Opus 4.1 | API only | `claude-4.1-opus` | — | Deepest single-shot reasoning
Claude Sonnet 4.6 | API only | `claude-4.6-sonnet` | — | Fast Claude

Plus any OpenRouter id — e.g. `minimax/minimax-m2`, `openai/gpt-4o-mini`, `qwen/qwen-2.5-coder-32b-instruct` — when you set `OPENROUTER_API_KEY`.

## #When to reach for which

### #GPT-5.5 Pro (default)

The current "Oracle of last resort." Slow (10 minutes typical, hour+ for huge bundles), expensive on API, free if you have ChatGPT Pro. Best for: long-form architecture review, multi-file refactors, gnarly bugs that need to chew on the whole repo.

    oracle --engine browser --model gpt-5.5-pro \
      -p "Plan the auth migration end-to-end" \
      --file "src/auth/**" --file "docs/auth.md"

### #Gemini 3.1 Pro

Free in browser mode if you're signed into `gemini.google.com` in Chrome. Also the path for YouTube transcript analysis (`--youtube`) and image generation/edit (`--generate-image`, `--edit-image`).

    oracle --engine browser --model gemini-3.1-pro \
      --prompt "a minimalist eye-of-providence logo, vector" \
      --generate-image out.png --aspect 1:1

### #Claude Opus 4.1

API-only. Best at sustained reasoning over a single tightly-scoped problem; lower hallucination rate on tricky code than Pro GPT models in our experience. Use when the task is "reason carefully" rather than "write a lot."

    oracle -p "Audit this state machine for unreachable transitions" \
      --model claude-4.1-opus --file "src/state/**"

### #Multi-model triangulation

When the answer matters, ask three:

    oracle -p "Will this migration corrupt user data under concurrent writes?" \
      --models gpt-5.5-pro,gemini-3.1-pro,claude-4.1-opus \
      --file "migrations/0042_user_schema.sql" \
      --file "src/db/**"

Oracle aggregates per-model cost in the run summary. See Multi-model.

## #Deep Research (browser only)

Browser mode can flip ChatGPT into Deep Research mode for cited reports:

    oracle --engine browser --model gpt-5.5-pro \
      --browser-research deep \
      -p "Survey approaches for embedded vector search in a Rust app, with citations"

The captured report lands at `~/.oracle/sessions/<id>/artifacts/deep-research-report.md`. Deep Research can run for an hour or more — Oracle stores the session and reattaches.

## #Thinking time

Pro / Thinking models in browser mode accept a `--browser-thinking-time` knob:

Level | What it maps to in ChatGPT
--- | ---
`light` | Quick
`standard` | Default
`extended` | Pro Extended / Thinking Extended
`heavy` | Heavy thinking

    oracle --engine browser --model gpt-5.5-pro \
      --browser-thinking-time extended \
      -p "Refactor this hot path" --file "src/render/**"

## #Pricing notes (rough heuristics, not contracts)

- GPT-5.x Pro (API): tokens cost meaningfully more than non-Pro. Watch the run summary.
- GPT-5.x Pro (browser): "free" with ChatGPT Pro / Plus subscription, but slow.
- Gemini 3.1 Pro / 3.5 Flash / 3.1 Flash-Lite (browser): available through a signed-in Google account, subject to account access.
- Claude Opus 4.1: per-token API only.
- OpenRouter ids: pricing varies wildly per provider; always preview with `--dry-run summary`.

`--files-report` plus `--dry-run summary` is the right reflex before any Pro run on a large bundle. Token counts ≠ dollars, but they're a close-enough proxy.

## #Engine compatibility

Capability | API | Browser (ChatGPT) | Browser (Gemini)
--- | --- | --- | ---
GPT-5.x family | ✅ | ✅ | —
Gemini 3.1 Pro / Flash | ✅ | — | ✅
Claude Sonnet / Opus | ✅ | — | —
OpenRouter ids | ✅ | — | —
Multi-model in one run | ✅ | — | —
Followup / lineage | ✅ (OpenAI/Azure) | partial (multi-turn) | —
Image generation | — | ✅ | ✅
YouTube analysis | — | — | ✅
Deep Research | — | ✅ | —
`--render --copy` fallback | ✅ | ✅ | ✅

See provider-specific docs for the gory details: OpenAI / Azure / OpenRouter, Gemini, Anthropic, Grok.