diff --git a/docs/guide/agent-model-matching.md b/docs/guide/agent-model-matching.md
index 8c750a9b2..c2115039b 100644
--- a/docs/guide/agent-model-matching.md
+++ b/docs/guide/agent-model-matching.md
@@ -92,8 +92,8 @@ These agents do grep, search, and retrieval. They intentionally use the fastest,
| Agent | Role | Fallback Chain | Notes |
| --------------------- | ------------------ | ---------------------------------------------- | ----------------------------------------------------- |
-| **Explore** | Fast codebase grep | github-copilot\|xai\|vercel/grok-code-fast-1 → opencode-go\|vercel/minimax-m2.7-highspeed → opencode\|vercel/minimax-m2.7 → anthropic\|opencode\|vercel/claude-haiku-4-5 → opencode\|vercel/gpt-5-nano | Exact runtime chain from `src/shared/model-requirements.ts`. |
-| **Librarian** | Docs/code search | opencode-go\|vercel/minimax-m2.7 → opencode\|vercel/minimax-m2.7-highspeed → anthropic\|opencode\|vercel/claude-haiku-4-5 → opencode\|vercel/gpt-5-nano | Exact runtime chain from `src/shared/model-requirements.ts`. |
+| **Explore** | Fast codebase grep | openai/gpt-5.4-mini-fast → opencode-go\|vercel/minimax-m2.7-highspeed → opencode-go\|vercel/minimax-m2.7 → anthropic\|opencode\|vercel/claude-haiku-4-5 → openai\|opencode\|vercel/gpt-5.4-nano | Exact runtime chain from `src/shared/model-requirements.ts`. |
+| **Librarian** | Docs/code search | openai/gpt-5.4-mini-fast → opencode-go\|vercel/minimax-m2.7-highspeed → opencode-go\|vercel/minimax-m2.7 → anthropic\|opencode\|vercel/claude-haiku-4-5 → openai\|opencode\|vercel/gpt-5.4-nano | Exact runtime chain from `src/shared/model-requirements.ts`. |
| **Multimodal Looker** | Vision/screenshots | openai\|opencode\|vercel/gpt-5.4 (medium) → opencode-go\|vercel/kimi-k2.5 → zai-coding-plan\|vercel/glm-4.6v → openai\|github-copilot\|opencode\|vercel/gpt-5-nano | Exact runtime chain from `src/shared/model-requirements.ts`. |
| **Sisyphus-Junior** | Category executor | anthropic\|github-copilot\|opencode\|vercel/claude-sonnet-4-6 → opencode-go\|vercel/kimi-k2.5 → openai\|github-copilot\|opencode\|vercel/gpt-5.4 (medium) → opencode-go\|vercel/minimax-m2.7 → opencode/big-pickle | Exact runtime chain from `src/shared/model-requirements.ts`. |
@@ -130,7 +130,7 @@ Principle-driven, explicit reasoning, deep technical capability. Best for agents
| -------------------- | ------------------------------------------------------------------------------------------------------------ |
| **Gemini 3.1 Pro** | Excels at visual/frontend tasks. Different reasoning style. Default for `visual-engineering` and `artistry`. |
| **Gemini 3 Flash** | Fast. Good for doc search and light tasks. |
-| **Grok Code Fast 1** | Blazing fast code grep. Default for Explore agent. |
+| **GPT-5.4 Mini Fast** | Default for Explore and Librarian agents. Blazing-fast reasoning-capable mini model. |
| **MiniMax M2.7** | Fast and smart. Used in OpenCode Go and OpenCode Zen utility fallback chains. |
| **MiniMax M2.7 Highspeed** | High-speed OpenCode catalog entry used in utility fallback chains that prefer the fastest available MiniMax path. |
@@ -144,8 +144,8 @@ A premium subscription tier ($10/month) that provides reliable access to Chinese
| ------------------------ | --------------------------------------------------------------------- |
| **opencode-go/kimi-k2.5** | Vision-capable, Claude-like reasoning. Used by Sisyphus, Atlas, Sisyphus-Junior, Multimodal Looker. |
| **opencode-go/glm-5** | Text-only orchestration model. Used by Oracle, Prometheus, Metis, Momus. |
-| **opencode-go/minimax-m2.7** | Ultra-cheap, fast responses. Used by Librarian, Atlas, and Sisyphus-Junior for utility work. |
-| **opencode-go/minimax-m2.7-highspeed** | Even faster OpenCode Go MiniMax entry used by Explore when the high-speed catalog entry is available. |
+| **opencode-go/minimax-m2.7** | Ultra-cheap, fast responses. Used by Atlas, Sisyphus-Junior, Explore and Librarian fallbacks for utility work. |
+| **opencode-go/minimax-m2.7-highspeed** | Even faster OpenCode Go MiniMax entry used as a secondary fallback for Explore and Librarian when GPT-5.4 Mini Fast is unavailable. |
**When It Gets Used:**
diff --git a/docs/guide/orchestration.md b/docs/guide/orchestration.md
index 0e21ce50a..0513be3f1 100644
--- a/docs/guide/orchestration.md
+++ b/docs/guide/orchestration.md
@@ -47,8 +47,8 @@ flowchart TB
subgraph Workers["Worker Layer (Specialized Agents)"]
Junior[" Sisyphus-Junior
(Task Executor)
claude-sonnet-4-6 / kimi-k2.5 / gpt-5.4 / minimax-m2.7"]
Oracle[" Oracle
(Architecture)
gpt-5.4 / gemini-3.1-pro / claude-opus-4-7 / glm-5"]
- Explore[" Explore
(Codebase Grep)
grok-code-fast-1 / minimax-m2.7-highspeed / claude-haiku-4-5"]
- Librarian[" Librarian
(Docs/OSS)
minimax-m2.7 / minimax-m2.7-highspeed / claude-haiku-4-5"]
+Explore[" Explore
(Codebase Grep)
gpt-5.4-mini-fast / minimax-m2.7-highspeed / claude-haiku-4-5"]
+Librarian[" Librarian
(Docs/OSS)
gpt-5.4-mini-fast / minimax-m2.7-highspeed / claude-haiku-4-5"]
Frontend[" visual-engineering
(category + frontend-ui-ux)
gemini-3.1-pro / glm-5 / claude-opus-4-7"]
end
diff --git a/docs/reference/configuration.md b/docs/reference/configuration.md
index 04f510b6d..c6513bfe8 100644
--- a/docs/reference/configuration.md
+++ b/docs/reference/configuration.md
@@ -358,8 +358,8 @@ Capability data comes from provider runtime metadata first. OmO also ships bundl
| **Sisyphus** | `claude-opus-4-7` | `anthropic\|github-copilot\|opencode/claude-opus-4-7 (max)` → `opencode-go/kimi-k2.5` → `kimi-for-coding/k2p5` → `opencode\|moonshotai\|moonshotai-cn\|firmware\|ollama-cloud\|aihubmix/kimi-k2.5` → `openai\|github-copilot\|opencode/gpt-5.4 (medium)` → `zai-coding-plan\|opencode/glm-5` → `opencode/big-pickle` |
| **Hephaestus** | `gpt-5.4` | `gpt-5.4 (medium)` |
| **oracle** | `gpt-5.4` | `openai\|github-copilot\|opencode/gpt-5.4 (high)` → `google\|github-copilot\|opencode/gemini-3.1-pro (high)` → `anthropic\|github-copilot\|opencode/claude-opus-4-7 (max)` → `opencode-go/glm-5` |
-| **librarian** | `minimax-m2.7` | `opencode-go/minimax-m2.7` → `opencode/minimax-m2.7-highspeed` → `anthropic\|opencode/claude-haiku-4-5` → `opencode/gpt-5-nano` |
-| **explore** | `grok-code-fast-1` | `github-copilot\|xai/grok-code-fast-1` → `opencode-go/minimax-m2.7-highspeed` → `opencode/minimax-m2.7` → `anthropic\|opencode/claude-haiku-4-5` → `opencode/gpt-5-nano` |
+| **librarian** | `gpt-5.4-mini-fast` | `openai/gpt-5.4-mini-fast` → `opencode-go/minimax-m2.7-highspeed` → `opencode-go/minimax-m2.7` → `anthropic\|opencode/claude-haiku-4-5` → `openai\|opencode/gpt-5.4-nano` |
+| **explore** | `gpt-5.4-mini-fast` | `openai/gpt-5.4-mini-fast` → `opencode-go/minimax-m2.7-highspeed` → `opencode-go/minimax-m2.7` → `anthropic\|opencode/claude-haiku-4-5` → `openai\|opencode/gpt-5.4-nano` |
| **multimodal-looker** | `gpt-5.4` | `openai\|opencode/gpt-5.4 (medium)` → `opencode-go/kimi-k2.5` → `zai-coding-plan/glm-4.6v` → `openai\|github-copilot\|opencode/gpt-5-nano` |
| **Prometheus** | `claude-opus-4-7` | `anthropic\|github-copilot\|opencode/claude-opus-4-7 (max)` → `openai\|github-copilot\|opencode/gpt-5.4 (high)` → `opencode-go/glm-5` → `google\|github-copilot\|opencode/gemini-3.1-pro` |
| **Metis** | `claude-opus-4-7` | `anthropic\|github-copilot\|opencode/claude-opus-4-7 (max)` → `openai\|github-copilot\|opencode/gpt-5.4 (high)` → `opencode-go/glm-5` → `kimi-for-coding/k2p5` |
diff --git a/docs/reference/features.md b/docs/reference/features.md
index 366554b6c..ab5f3925c 100644
--- a/docs/reference/features.md
+++ b/docs/reference/features.md
@@ -13,8 +13,8 @@ Core-agent tab cycling is deterministic via injected runtime order field. The fi
| **Sisyphus** | `claude-opus-4-7` | The default orchestrator. Plans, delegates, and executes complex tasks using specialized subagents with aggressive parallel execution. Todo-driven workflow with extended thinking (32k budget). Fallback: `opencode-go/kimi-k2.5` → `kimi-for-coding/k2p5` → `opencode\|moonshotai\|moonshotai-cn\|firmware\|ollama-cloud\|aihubmix/kimi-k2.5` → `openai\|github-copilot\|opencode/gpt-5.4 (medium)` → `zai-coding-plan\|opencode/glm-5` → `opencode/big-pickle`. |
| **Hephaestus** | `gpt-5.4` | The Legitimate Craftsman. Autonomous deep worker inspired by AmpCode's deep mode. Goal-oriented execution with thorough research before action. Explores codebase patterns, completes tasks end-to-end without premature stopping. Named after the Greek god of forge and craftsmanship. Requires a GPT-capable provider. |
| **Oracle** | `gpt-5.4` | Architecture decisions, code review, debugging. Read-only consultation with stellar logical reasoning and deep analysis. Inspired by AmpCode. Fallback: `google\|github-copilot\|opencode/gemini-3.1-pro (high)` → `anthropic\|github-copilot\|opencode/claude-opus-4-7 (max)` → `opencode-go/glm-5`. |
-| **Librarian** | `minimax-m2.7` | Multi-repo analysis, documentation lookup, OSS implementation examples. Deep codebase understanding with evidence-based answers. Fallback: `opencode/minimax-m2.7-highspeed` → `anthropic\|opencode/claude-haiku-4-5` → `opencode/gpt-5-nano`. |
-| **Explore** | `grok-code-fast-1` | Fast codebase exploration and contextual grep. Fallback: `opencode-go/minimax-m2.7-highspeed` → `opencode/minimax-m2.7` → `anthropic\|opencode/claude-haiku-4-5` → `opencode/gpt-5-nano`. |
+| **Librarian** | `gpt-5.4-mini-fast` | Multi-repo analysis, documentation lookup, OSS implementation examples. Deep codebase understanding with evidence-based answers. Fallback: `opencode-go/minimax-m2.7-highspeed` → `opencode-go/minimax-m2.7` → `anthropic\|opencode/claude-haiku-4-5` → `openai\|opencode/gpt-5.4-nano`. |
+| **Explore** | `gpt-5.4-mini-fast` | Fast codebase exploration and contextual grep. Fallback: `opencode-go/minimax-m2.7-highspeed` → `opencode-go/minimax-m2.7` → `anthropic\|opencode/claude-haiku-4-5` → `openai\|opencode/gpt-5.4-nano`. |
| **Multimodal-Looker** | `gpt-5.4` | Visual content specialist. Analyzes PDFs, images, diagrams to extract information. Fallback: `opencode-go/kimi-k2.5` → `zai-coding-plan/glm-4.6v` → `openai\|github-copilot\|opencode/gpt-5-nano`. |
### Planning Agents
diff --git a/src/agents/AGENTS.md b/src/agents/AGENTS.md
index f92c44406..c69c0608a 100644
--- a/src/agents/AGENTS.md
+++ b/src/agents/AGENTS.md
@@ -13,8 +13,8 @@ Agent factories following `createXXXAgent(model) → AgentConfig` pattern. Each
| **Sisyphus** | claude-opus-4-7 max | 0.1 | all | k2p5 -> kimi-k2.5 -> gpt-5.4 medium -> glm-5 -> big-pickle | Main orchestrator, plans + delegates |
| **Hephaestus** | gpt-5.4 medium | 0.1 | all | — | Autonomous deep worker |
| **Oracle** | gpt-5.4 high | 0.1 | subagent | gemini-3.1-pro high -> claude-opus-4-7 max | Read-only consultation |
-| **Librarian** | minimax-m2.7 | 0.1 | subagent | minimax-m2.7-highspeed -> claude-haiku-4-5 -> gpt-5-nano | External docs/code search |
-| **Explore** | grok-code-fast-1 | 0.1 | subagent | minimax-m2.7-highspeed -> minimax-m2.7 -> claude-haiku-4-5 -> gpt-5-nano | Contextual grep |
+| **Librarian** | gpt-5.4-mini-fast | 0.1 | subagent | minimax-m2.7-highspeed -> minimax-m2.7 -> claude-haiku-4-5 -> gpt-5.4-nano | External docs/code search |
+| **Explore** | gpt-5.4-mini-fast | 0.1 | subagent | minimax-m2.7-highspeed -> minimax-m2.7 -> claude-haiku-4-5 -> gpt-5.4-nano | Contextual grep |
| **Multimodal-Looker** | gpt-5.3-codex medium | 0.1 | subagent | k2p5 -> gemini-3-flash -> glm-4.6v -> gpt-5-nano | PDF/image analysis |
| **Metis** | claude-opus-4-7 max | **0.3** | subagent | gpt-5.4 high -> gemini-3.1-pro high | Pre-planning consultant |
| **Momus** | gpt-5.4 xhigh | 0.1 | subagent | claude-opus-4-7 max -> gemini-3.1-pro high | Plan reviewer |