Clerk Agent Guard

LLM Family Weakness Heatmap

Compare family-level risk profiles across tool-call robustness, procedure compliance, multilingual serialization, uncertainty calibration, and long-context degradation.

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Heatmap

DimensionGPT-4.1
OpenAI
Claude 4 Ops
Anthropic

Tool-Call Robustness

Ability to keep tool names and parameters stable under paraphrase and noise.

88%

Weakness: 12%

86%

Weakness: 14%

Procedure Compliance

Ability to follow required action ordering for critical write workflows.

84%

Weakness: 16%

91%

Weakness: 9%

Multilingual Serialization

Argument shape and locale correctness when parsing non-English prompts.

79%

Weakness: 21%

89%

Weakness: 11%

Uncertainty Calibration

Whether confidence signals align with real error probability for risky calls.

74%

Weakness: 26%

82%

Weakness: 18%

Long-Context Degradation

Drop in tool execution quality as prompt context grows.

71%

Weakness: 29%

80%

Weakness: 20%

GPT-4.1 score profile

Chat Completion | OpenAI | 2025-01

Tool-Call Robustness

Procedure Compliance

Multilingual Serialization

Uncertainty Calibration

Long-Context Degradation

Recommended guard actions

  • LOWTool schema hardening (low)

    Run JSON schema validation before execution and reject enum drift, unknown keys, and type swaps between similar fields.

  • LOWProcedure verifier (low)

    Require preflight checkpoints for every multi-step write workflow and verify prerequisite actions were completed.

  • LOWLocale bridge (low)

    Normalize and canonicalize locale-specific identifiers before runtime tool dispatch so locale text cannot mutate machine IDs.

  • LOWUncertainty gate (low)

    Escalate when confidence width is high or disagreement between validators crosses a defined threshold.

  • LOWContext partitioner (low)

    Reduce active tool context to the minimal action slice and rehydrate state per turn for long conversations.

Claude 4 Ops score profile

Function Agent | Anthropic | 2025-02

Tool-Call Robustness

Procedure Compliance

Multilingual Serialization

Uncertainty Calibration

Long-Context Degradation

Recommended guard actions

  • LOWTool schema hardening (low)

    Run JSON schema validation before execution and reject enum drift, unknown keys, and type swaps between similar fields.

  • LOWProcedure verifier (low)

    Require preflight checkpoints for every multi-step write workflow and verify prerequisite actions were completed.

  • LOWLocale bridge (low)

    Normalize and canonicalize locale-specific identifiers before runtime tool dispatch so locale text cannot mutate machine IDs.

  • LOWUncertainty gate (low)

    Escalate when confidence width is high or disagreement between validators crosses a defined threshold.

  • LOWContext partitioner (low)

    Reduce active tool context to the minimal action slice and rehydrate state per turn for long conversations.

Side-by-side comparison delta

Tool-Call Robustness

GPT-4.1 88% vs Claude 4 Ops 86%

Δ 2%

Procedure Compliance

GPT-4.1 84% vs Claude 4 Ops 91%

Δ +7%

Multilingual Serialization

GPT-4.1 79% vs Claude 4 Ops 89%

Δ +10%

Uncertainty Calibration

GPT-4.1 74% vs Claude 4 Ops 82%

Δ +8%

Long-Context Degradation

GPT-4.1 71% vs Claude 4 Ops 80%

Δ +9%