Repeated "Selected model is at capacity" errors make Codex unusable

What version of Codex CLI is running?

v0.154.0

What subscription do you have?

ChatGPT Pro 20x

Which model were you using?

gpt-6-astra ultra fast

What platform is your computer?

Linux 6.8.0-107-generic x86_64 x86_64

What terminal emulator and version are you using (if applicable)?

No response

Codex doctor report

{
  "schemaVersion": 1,
  "generatedAt": "1789007014s since unix epoch",
  "overallStatus": "warning",
  "codexVersion": "0.154.0",
  "checks": {
    "app_server.status": {
      "id": "app_server.status",
      "category": "app-server",
      "status": "ok",
      "summary": "background server is not running",
      "details": {
        "control socket": "/home/ia_user/.codex/app-server-control/app-server-control.sock",
        "daemon state dir": "/home/ia_user/.codex/app-server-daemon",
        "mode": "ephemeral",
        "pid file": "/home/ia_user/.codex/app-server-daemon/app-server.pid (missing)",
        "settings": "/home/ia_user/.codex/app-server-daemon/settings.json (missing)",
        "status": "not running",
        "update-loop pid file": "/home/ia_user/.codex/app-server-daemon/app-server-updater.pid (missing)"
      },
      "remediation": null,
      "durationMs": 0
    },
    "auth.credentials": {
      "id": "auth.credentials",
      "category": "auth",
      "status": "ok",
      "summary": "auth is configured",
      "details": {
        "auth file": "/home/ia_user/.codex/auth.json",
        "auth storage mode": "File",
        "stored API key": "false",
        "stored ChatGPT tokens": "true",
        "stored agent identity": "false",
        "stored auth mode": "chatgpt"
      },
      "remediation": null,
      "durationMs": 0
    },
    "config.load": {
      "id": "config.load",
      "category": "config",
      "status": "ok",
      "summary": "config loaded",
      "details": {
        "CODEX_HOME": "/home/ia_user/.codex",
        "active thread overrides": "not inspected",
        "config.toml": "/home/ia_user/.codex/config.toml",
        "config.toml parse": "ok",
        "configuration load ms": "30",
        "configuration scope": "invocation config, including cloud-managed policy",
        "cwd": "/home/ia_user",
        "enabled feature flags": "shell_tool, view_image, sleep_tool, unified_exec, unified_exec_tty, unified_exec_zsh_fork, shell_snapshot, content_item_kinds, code_mode_host, terminal_resize_reflow, sqlite, memories, hooks, enable_request_compression, unbounded_connection_retries, multi_agent, apps, tool_search_always_defer_mcp_tools, tool_suggest, plugins, in_app_browser, in_app_chat, in_app_dictation, in_app_local_automation, in_app_updates, browser_use, browser_use_full_cdp_access, browser_use_external, computer_use, remote_plugin, plugin_sharing, image_generation, resize_all_images, item_ids, skill_mcp_dependency_install, skill_search, mentions_v2, steer, guardian_approval, goals, collaboration_modes, tool_call_mcp_elicitation, auth_elicitation, personality, fast_mode, tui_app_server, remote_compaction_v2, compaction_image_budget, workspace_dependencies",
        "feature flag overrides": "memories=true",
        "feature flags enabled": "49",
        "log dir": "/home/ia_user/.codex/log",
        "mcp servers": "2",
        "model": "gpt-6-astra",
        "model provider": "openai",
        "sqlite home": "/home/ia_user/.codex"
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      "remediation": null,
      "durationMs": 0
    },
    "git.environment": {
      "id": "git.environment",
      "category": "git",
      "status": "ok",
      "summary": "git executable found; execution not verified",
      "details": {
        "PATH git #1": "/usr/bin/git",
        "PATH git #2": "/bin/git",
        "PATH git entries": "2",
        "git execution": "not inspected (PATH helpers are not executed)",
        "repo detected": "false",
        "selected git": "/usr/bin/git"
      },
      "remediation": null,
      "durationMs": 0
    },
    "installation": {
      "id": "installation",
      "category": "install",
      "status": "ok",
      "summary": "installation looks consistent",
      "details": {
        "PATH codex #1": "/usr/bin/codex",
        "PATH codex #2": "/bin/codex",
        "PATH codex entries": "2",
        "current executable": "/usr/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin/codex",
        "install context": "npm (package /usr/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl, bin /usr/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin, resources /usr/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-resources, path /usr/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-path)",
        "managed by Vite+": "false",
        "managed by bun": "false",
        "managed by npm": "true",
        "managed by pnpm": "false",
        "managed package root": "/usr/lib/node_modules/@openai/codex",
        "npm update target": "not inspected (PATH helpers are not executed)"
      },
      "remediation": null,
      "durationMs": 0
    },
    "mcp.config": {
      "id": "mcp.config",
      "category": "mcp",
      "status": "ok",
      "summary": "MCP configuration is locally consistent",
      "details": {
        "configured servers": "2",
        "disabled servers": "0",
        "stdio servers": "1",
        "streamable_http servers": "1"
      },
      "remediation": null,
      "durationMs": 74
    },
    "network.env": {
      "id": "network.env",
      "category": "network",
      "status": "ok",
      "summary": "network-related environment looks readable",
      "details": {
        "managed proxy": "not configured",
        "proxy env vars": "none",
        "respect system proxy": "disabled"
      },
      "remediation": null,
      "durationMs": 0
    },
    "network.provider_reachability": {
      "id": "network.provider_reachability",
      "category": "reachability",
      "status": "ok",
      "summary": "active provider endpoints are reachable over HTTP",
      "details": {
        "ChatGPT inference URL": "https://chatgpt.com/backend-api/<redacted> reachable (HTTP 405)",
        "reachability mode": "ChatGPT auth"
      },
      "remediation": null,
      "durationMs": 144
    },
    "network.websocket_reachability": {
      "id": "network.websocket_reachability",
      "category": "websocket",
      "status": "ok",
      "summary": "Responses WebSocket handshake succeeded",
      "details": {
        "DNS": "2 IPv4, 2 IPv6, first IPv4",
        "auth mode": "chatgpt",
        "connect timeout": "15000 ms",
        "endpoint": "wss://chatgpt.com/backend-api/<redacted>",
        "handshake result": "HTTP 101 Switching Protocols",
        "model provider": "openai",
        "provider name": "OpenAI",
        "proxy env vars": "none",
        "reasoning header": "false",
        "server model present": "false",
        "supports websockets": "true",
        "wire API": "responses"
      },
      "remediation": null,
      "durationMs": 778
    },
    "runtime.provenance": {
      "id": "runtime.provenance",
      "category": "runtime",
      "status": "ok",
      "summary": "running npm on linux-x86_64",
      "details": {
        "commit": "unknown",
        "current executable": "/usr/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin/codex",
        "install method": "npm (package /usr/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl, bin /usr/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin, resources /usr/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-resources, path /usr/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-path)",
        "platform": "linux-x86_64",
        "version": "0.154.0"
      },
      "remediation": null,
      "durationMs": 0
    },
    "runtime.search": {
      "id": "runtime.search",
      "category": "search",
      "status": "ok",
      "summary": "search command found (bundled); execution not verified",
      "details": {
        "search command": "/usr/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-path/rg",
        "search command readiness": "file exists",
        "search provider": "bundled"
      },
      "remediation": null,
      "durationMs": 0
    },
    "sandbox.helpers": {
      "id": "sandbox.helpers",
      "category": "sandbox",
      "status": "ok",
      "summary": "sandbox configuration is readable",
      "details": {
        "approval policy": "OnRequest",
        "codex-linux-sandbox helper": "/home/ia_user/.codex/tmp/arg0/codex-arg0g2d725/codex-linux-sandbox",
        "denied-read glob rules": "0",
        "denied-read rules": "0",
        "execve wrapper helper": "/home/ia_user/.codex/tmp/arg0/codex-arg0g2d725/codex-execve-wrapper",
        "filesystem sandbox": "restricted",
        "glob scan max depth": "unbounded",
        "managed filesystem source": "none",
        "network sandbox": "restricted"
      },
      "remediation": null,
      "durationMs": 0
    },
    "security.endpoint": {
      "id": "security.endpoint",
      "category": "security",
      "status": "ok",
      "summary": "endpoint protection is not inspected on this platform",
      "details": {
        "endpoint products": "not inspected on this platform"
      },
      "remediation": null,
      "durationMs": 0
    },
    "state.paths": {
      "id": "state.paths",
      "category": "state",
      "status": "ok",
      "summary": "state paths and databases are inspectable",
      "details": {
        "CODEX_HOME": "/home/ia_user/.codex (dir)",
        "active rollout files": "5960 files, 580576085147 total bytes, 97412094 average bytes",
        "archived rollout files": "4 files, 493469737 total bytes, 123367434 average bytes",
        "goals DB": "/home/ia_user/.codex/goals_1.sqlite (file)",
        "goals DB integrity": "ok",
        "log DB": "/home/ia_user/.codex/logs_2.sqlite (file)",
        "log DB integrity": "ok",
        "log dir": "/home/ia_user/.codex/log (dir)",
        "memories DB": "/home/ia_user/.codex/memories_1.sqlite (file)",
        "memories DB integrity": "ok",
        "queue DB": "/home/ia_user/.codex/queue_1.sqlite (file)",
        "queue DB integrity": "ok",
        "sqlite home": "/home/ia_user/.codex (dir)",
        "state DB": "/home/ia_user/.codex/state_5.sqlite (file)",
        "state DB integrity": "ok",
        "thread history DB": "/home/ia_user/.codex/thread_history_1.sqlite (file)",
        "thread history DB integrity": "ok"
      },
      "remediation": null,
      "durationMs": 101609
    },
    "state.rollout_db_parity": {
      "id": "state.rollout_db_parity",
      "category": "threads",
      "status": "warning",
      "summary": "rollout files and state DB thread inventory differ",
      "details": {
        "default model provider": "openai",
        "rollout DB active files": "5960",
        "rollout DB active rows": "5959",
        "rollout DB archive mismatches": "0",
        "rollout DB archived files": "4",
        "rollout DB archived rows": "4",
        "rollout DB duplicate DB paths": "0",
        "rollout DB duplicate rollout thread ids": "0",
        "rollout DB malformed file names": "0",
        "rollout DB missing active rows": "1",
        "rollout DB missing active sample": "/home/ia_user/.codex/sessions/2026/08/31/rollout-2026-08-31T00-02-00-01a05368-03b6-7582-8db3-b4bef63d6e0d.jsonl",
        "rollout DB missing archived rows": "0",
        "rollout DB model providers": "openai=5963",
        "rollout DB rows": "5963",
        "rollout DB scan cap reached": "false",
        "rollout DB scan errors": "0",
        "rollout DB sources": "subagent:thread_spawn=4922, exec=989, cli=49, subagent:review=3",
        "rollout DB stale rows": "0"
      },
      "issues": [
        {
          "severity": "warning",
          "cause": "rollout files are missing from the state DB",
          "measured": "1 active, 0 archived",
          "expected": "every rollout file has a matching threads row",
          "remedy": null,
          "fields": []
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      "remediation": null,
      "durationMs": 1703
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    "system.disk": {
      "id": "system.disk",
      "category": "disk",
      "status": "ok",
      "summary": "sufficient free disk space (103.0 GiB)",
      "details": {
        "CODEX_HOME available": "103.0 GiB",
        "failure threshold": "1.0 GiB",
        "warning threshold": "5.0 GiB",
        "worktree available": "103.0 GiB"
      },
      "remediation": null,
      "durationMs": 0
    },
    "system.environment": {
      "id": "system.environment",
      "category": "system",
      "status": "ok",
      "summary": "OS language en-US",
      "details": {
        "EDITOR": "not set",
        "LANG": "en_US.UTF-8",
        "VISUAL": "not set",
        "os": "Ubuntu 24.4.0 (noble) [64-bit]",
        "os language": "en-US",
        "os type": "Ubuntu",
        "os version": "24.4.0"
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      "remediation": null,
      "durationMs": 10
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    "terminal.env": {
      "id": "terminal.env",
      "category": "terminal",
      "status": "ok",
      "summary": "terminal metadata was detected",
      "details": {
        "SSH_CLIENT": "present",
        "SSH_CONNECTION": "present",
        "SSH_TTY": "present",
        "TERM": "xterm",
        "color output": "enabled",
        "effective locale": "en_US.UTF-8",
        "stderr is terminal": "true",
        "stdin is terminal": "true",
        "stdout is terminal": "true",
        "terminal": "unknown",
        "terminal size": "208x40"
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      "remediation": null,
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    "terminal.title": {
      "id": "terminal.title",
      "category": "title",
      "status": "ok",
      "summary": "terminal title default",
      "details": {
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        "terminal title items": "activity, project-name",
        "terminal title project source": "cwd",
        "terminal title project value": "ia_user",
        "terminal title source": "default"
      },
      "remediation": null,
      "durationMs": 0
    },
    "updates.status": {
      "id": "updates.status",
      "category": "updates",
      "status": "ok",
      "summary": "update configuration is locally consistent",
      "details": {
        "cached latest version": "0.154.0",
        "check for update on startup": "true",
        "last checked at": "2026-09-10T00:48:55.887118995Z",
        "latest version": "0.154.0",
        "latest version status": "current version is not older",
        "npm update target": "not inspected (PATH helpers are not executed)",
        "update action": "npm install -g @openai/codex",
        "version cache": "/home/ia_user/.codex/version.json"
      },
      "remediation": null,
      "durationMs": 2448
    }
  }
}

What issue are you seeing?

I frequently encounter the following error while using Codex:

"Selected model is at capacity. Please try a different model."

This is a recurring issue rather than an isolated interruption. Codex is currently unusable for my development work, and the repeated failures are blocking progress on my projects.

The error message does not provide enough information to identify the cause or a reliable way to resume working. I cannot determine whether this is a temporary model-capacity issue or another problem affecting my access to Codex.

Please investigate the affected thread referenced in the reproduction steps below and advise on a reliable workaround.

What steps can reproduce the bug?

Uploaded thread: 019e162f-ee7d-7d21-af2b-f08b8d4a317a

What is the expected behavior?

Codex should process requests normally when the selected model is available and my account is eligible to use it.

If the model is temporarily unavailable, Codex should provide actionable guidance, such as when to retry or which alternative model is available.

I should be able to resume the affected task once access is restored, without losing the conversation state or work already completed.

Additional information

Impact:
Codex is currently unusable for my development workflow, and this issue is blocking project progress.

Frequency:
Frequent / recurring.

Approximate timestamp of a recent failure, including time zone:
[Enter an actual failure date, time, and time zone]

Troubleshooting already attempted and results:
None yet

Questions for the team:

• Is this a known incident affecting Codex or the selected model?
• Can the uploaded thread help identify why these requests are failing?
• Is there a reliable workaround or a recommended alternative model to restore access?
• If more diagnostic information is needed, please specify what to collect and how to share it safely.

No source file, entry point, or test is named. Start by reproducing the repeated capacity error with Codex CLI v0.154.0 on Linux using the reported model, then inspect the CLI behavior around the supplied doctor report and provider reachability details. Done means identifying whether the failure is actionable in the CLI and defining a verified fix or provider-side conclusion.