openclaw - ✅(Solved) Fix MiniMax token usage shows 0 in Control UI Usage page (only message count works) [1 pull requests, 1 comments, 2 participants]

openclaw2026-04-30 10:29:33

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openclaw/openclaw#75026•Fetched 2026-05-01 05:39:00

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The MiniMax provider shows tokens: 0 in the Control UI Usage page, while only message counts are correctly tracked. DeepSeek (OpenAI format) works fine.

Root Cause

MiniMax API correctly returns token usage:
- Anthropic format: {"input_tokens": 23, "output_tokens": 10, "cache_read_input_tokens": 0, "cache_creation_input_tokens": 0}
- OpenAI format: {"prompt_tokens": 23, "completion_tokens": 10, "total_tokens": 33}

normalizeUsage() in usage-DHoo33i9.js correctly handles both formats:

const input = raw.input ?? raw.inputTokens ?? raw.input_tokens ?? raw.promptTokens ?? raw.prompt_tokens ?? ...
const output = raw.output ?? raw.outputTokens ?? raw.output_tokens ?? raw.completionTokens ?? raw.completion_tokens ?? ...

But session JSONL files show zero usage for MiniMax runs:

{"input": 0, "output": 0, "cacheRead": 0, "cacheWrite": 0, "totalTokens": 0}

The bug is in the pipeline: API response usage → lastAssistant.usage → mergeUsageIntoAccumulator → session store. The Anthropic-format usage data from MiniMax is not being propagated to attempt.lastAssistant.usage.

Fix Action

Workaround

Switching to MiniMax's OpenAI-compatible endpoint (api.minimaxi.com/v1/chat/completions) instead of the Anthropic-compatible one may work as a temporary fix.

PR fix notes

PR #75136: [codex] fix(minimax): preserve anthropic stream usage

Repository: openclaw/openclaw
Author: Aliciawque
State: open | merged: False
Link: https://github.com/openclaw/openclaw/pull/75136

Description (problem / solution / changelog)

Summary

Fixes #75026.

This keeps MiniMax Anthropic-compatible streaming usage from being lost before session persistence:

normalizes transport usage with the shared normalizeUsage() helper, so OpenAI-style aliases such as prompt_tokens, completion_tokens, and total_tokens are accepted on the Anthropic-compatible stream path
applies usage snapshots from message_start, message_delta, and compatible-provider message_stop events
adds MiniMax-shaped SSE regression coverage for alias usage and message_stop usage
adds an Unreleased changelog entry

Root cause

The Anthropic stream transport only copied native Anthropic usage keys (input_tokens, output_tokens, cache_read_input_tokens, cache_creation_input_tokens) from message_start and message_delta. MiniMax-compatible streams can expose nonzero usage through OpenAI-style aliases or at message_stop, so the assistant usage snapshot stayed zero and downstream session/Usage UI summaries showed token totals as 0.

Validation

pnpm exec oxfmt --check --threads=1 src/agents/anthropic-transport-stream.ts src/agents/anthropic-transport-stream.test.ts CHANGELOG.md
pnpm test src/agents/anthropic-transport-stream.test.ts src/agents/usage.test.ts src/agents/pi-embedded-runner/usage-accumulator.test.ts src/infra/session-cost-usage.test.ts
pnpm tsgo:core
pnpm tsgo:core:test
pnpm check:changed
git diff --check origin/main..HEAD

I did not run a live MiniMax CN request; the regression is covered with deterministic SSE fixtures at the transport boundary where usage was being dropped.

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Focused tests and changed-lane checks run locally
Author reviewed the diff before opening this PR

Changed files

CHANGELOG.md (modified, +1/-0)
src/agents/anthropic-transport-stream.test.ts (modified, +102/-0)
src/agents/anthropic-transport-stream.ts (modified, +40/-33)

Code Example

const input = raw.input ?? raw.inputTokens ?? raw.input_tokens ?? raw.promptTokens ?? raw.prompt_tokens ?? ...
   const output = raw.output ?? raw.outputTokens ?? raw.output_tokens ?? raw.completionTokens ?? raw.completion_tokens ?? ...

---

{"input": 0, "output": 0, "cacheRead": 0, "cacheWrite": 0, "totalTokens": 0}

RAW_BUFFERClick to expand / collapse

Summary

The MiniMax provider shows tokens: 0 in the Control UI Usage page, while only message counts are correctly tracked. DeepSeek (OpenAI format) works fine.

Root Cause Analysis

MiniMax API correctly returns token usage:
- Anthropic format: {"input_tokens": 23, "output_tokens": 10, "cache_read_input_tokens": 0, "cache_creation_input_tokens": 0}
- OpenAI format: {"prompt_tokens": 23, "completion_tokens": 10, "total_tokens": 33}

normalizeUsage() in usage-DHoo33i9.js correctly handles both formats:

const input = raw.input ?? raw.inputTokens ?? raw.input_tokens ?? raw.promptTokens ?? raw.prompt_tokens ?? ...
const output = raw.output ?? raw.outputTokens ?? raw.output_tokens ?? raw.completionTokens ?? raw.completion_tokens ?? ...

But session JSONL files show zero usage for MiniMax runs:

{"input": 0, "output": 0, "cacheRead": 0, "cacheWrite": 0, "totalTokens": 0}

The bug is in the pipeline: API response usage → lastAssistant.usage → mergeUsageIntoAccumulator → session store. The Anthropic-format usage data from MiniMax is not being propagated to attempt.lastAssistant.usage.

Steps to Reproduce

Use MiniMax as the primary model
Make multiple API calls
Check Control UI → Usage page → MiniMax shows tokens=0, messages=N
Compare: DeepSeek shows both tokens and messages correctly

Environment

OpenClaw 2026.4.27 (cbc2ba0)
MiniMax CN endpoint (api.minimaxi.com/anthropic)
macOS + node v22.22.0

Workaround

Switching to MiniMax's OpenAI-compatible endpoint (api.minimaxi.com/v1/chat/completions) instead of the Anthropic-compatible one may work as a temporary fix.

extent analysis

TL;DR

Switching to MiniMax's OpenAI-compatible endpoint may resolve the token tracking issue for MiniMax in the Control UI Usage page.

Guidance

Verify that the normalizeUsage() function in usage-DHoo33i9.js is correctly handling the Anthropic format by logging the input and output values.
Check the mergeUsageIntoAccumulator function to ensure it is correctly propagating the usage data from API response usage to lastAssistant.usage.
Inspect the session JSONL files to confirm that the usage data is being written correctly after making the API calls.
Test the workaround by switching to the OpenAI-compatible endpoint and checking if the token usage is correctly tracked.

Example

No code snippet is provided as the issue is more related to the data flow and propagation rather than a specific code block.

Notes

The issue seems to be specific to the MiniMax provider and the Anthropic format, and the workaround may not be a permanent solution. Further investigation into the pipeline and the mergeUsageIntoAccumulator function may be necessary to resolve the issue.

Recommendation

Apply the workaround by switching to the OpenAI-compatible endpoint, as it may provide a temporary fix for the token tracking issue.

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openclaw - ✅(Solved) Fix MiniMax token usage shows 0 in Control UI Usage page (only message count works) [1 pull requests, 1 comments, 2 participants]

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PR fix notes

PR #75136: [codex] fix(minimax): preserve anthropic stream usage

Description (problem / solution / changelog)

Summary

Root cause

Validation

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openclaw - ✅(Solved) Fix MiniMax token usage shows 0 in Control UI Usage page (only message count works) [1 pull requests, 1 comments, 2 participants]

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GitHub issue graph ai analysis

Root Cause

Fix Action

Workaround

PR fix notes

PR #75136: [codex] fix(minimax): preserve anthropic stream usage

Description (problem / solution / changelog)

Summary

Root cause

Validation

AI-assisted

Changed files

Code Example

Summary

Root Cause Analysis

Steps to Reproduce

Environment

Workaround

extent analysis

TL;DR

Guidance

Example

Notes

Recommendation

Still need to ship something?

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