hermes-agent/tests/agent/test_usage_pricing.py
Robin Fernandes af978ecb17 fix(model): require confirmation for expensive model selections
Rebased onto current main and re-ported across the restructured
surfaces: model flows now thread confirm_provider/base_url/api_key
through hermes_cli/model_setup_flows.py, the Discord picker lives in
plugins/platforms/discord/adapter.py, and the web dashboard picker
applies chat-mode switches via config.set so the expensive-model
confirmation can ride the response.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-06-10 00:24:06 -07:00

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from types import SimpleNamespace
from agent.usage_pricing import (
CanonicalUsage,
estimate_usage_cost,
get_pricing_entry,
normalize_usage,
)
def test_normalize_usage_anthropic_keeps_cache_buckets_separate():
usage = SimpleNamespace(
input_tokens=1000,
output_tokens=500,
cache_read_input_tokens=2000,
cache_creation_input_tokens=400,
)
normalized = normalize_usage(usage, provider="anthropic", api_mode="anthropic_messages")
assert normalized.input_tokens == 1000
assert normalized.output_tokens == 500
assert normalized.cache_read_tokens == 2000
assert normalized.cache_write_tokens == 400
assert normalized.prompt_tokens == 3400
def test_normalize_usage_openai_subtracts_cached_prompt_tokens():
usage = SimpleNamespace(
prompt_tokens=3000,
completion_tokens=700,
prompt_tokens_details=SimpleNamespace(cached_tokens=1800),
)
normalized = normalize_usage(usage, provider="openai", api_mode="chat_completions")
assert normalized.input_tokens == 1200
assert normalized.cache_read_tokens == 1800
assert normalized.output_tokens == 700
def test_normalize_usage_openai_reads_top_level_anthropic_cache_fields():
"""Some OpenAI-compatible proxies (OpenRouter, Cline) expose
Anthropic-style cache token counts at the top level of the usage object when
routing Claude models, instead of nesting them in prompt_tokens_details.
Regression guard for the bug fixed in cline/cline#10266 — before this fix,
the chat-completions branch of normalize_usage() only read
prompt_tokens_details.cache_write_tokens and completely missed the
cache_creation_input_tokens case, so cache writes showed as 0 and reflected
inputTokens were overstated by the cache-write amount.
"""
usage = SimpleNamespace(
prompt_tokens=1000,
completion_tokens=200,
prompt_tokens_details=SimpleNamespace(cached_tokens=500),
cache_creation_input_tokens=300,
)
normalized = normalize_usage(usage, provider="openrouter", api_mode="chat_completions")
# Expected: cache read from prompt_tokens_details.cached_tokens (preferred),
# cache write from top-level cache_creation_input_tokens (fallback).
assert normalized.cache_read_tokens == 500
assert normalized.cache_write_tokens == 300
# input_tokens = prompt_total - cache_read - cache_write = 1000 - 500 - 300 = 200
assert normalized.input_tokens == 200
assert normalized.output_tokens == 200
def test_normalize_usage_openai_reads_top_level_cache_read_when_details_missing():
"""Some proxies expose only top-level Anthropic-style fields with no
prompt_tokens_details object. Regression guard for cline/cline#10266.
"""
usage = SimpleNamespace(
prompt_tokens=1000,
completion_tokens=200,
cache_read_input_tokens=500,
cache_creation_input_tokens=300,
)
normalized = normalize_usage(usage, provider="openrouter", api_mode="chat_completions")
assert normalized.cache_read_tokens == 500
assert normalized.cache_write_tokens == 300
assert normalized.input_tokens == 200
def test_normalize_usage_openai_prefers_prompt_tokens_details_over_top_level():
"""When both prompt_tokens_details and top-level Anthropic fields are
present, we prefer the OpenAI-standard nested fields. Top-level Anthropic
fields are only a fallback when the nested ones are absent/zero.
"""
usage = SimpleNamespace(
prompt_tokens=1000,
completion_tokens=200,
prompt_tokens_details=SimpleNamespace(cached_tokens=600, cache_write_tokens=150),
# Intentionally different values — proving we ignore these when details exist.
cache_read_input_tokens=999,
cache_creation_input_tokens=999,
)
normalized = normalize_usage(usage, provider="openrouter", api_mode="chat_completions")
assert normalized.cache_read_tokens == 600
assert normalized.cache_write_tokens == 150
def test_openrouter_models_api_pricing_is_converted_from_per_token_to_per_million(monkeypatch):
monkeypatch.setattr(
"agent.usage_pricing.fetch_model_metadata",
lambda: {
"anthropic/claude-opus-4.6": {
"pricing": {
"prompt": "0.000005",
"completion": "0.000025",
"input_cache_read": "0.0000005",
"input_cache_write": "0.00000625",
}
}
},
)
entry = get_pricing_entry(
"anthropic/claude-opus-4.6",
provider="openrouter",
base_url="https://openrouter.ai/api/v1",
)
assert float(entry.input_cost_per_million) == 5.0
assert float(entry.output_cost_per_million) == 25.0
assert float(entry.cache_read_cost_per_million) == 0.5
assert float(entry.cache_write_cost_per_million) == 6.25
def test_estimate_usage_cost_marks_subscription_routes_included():
result = estimate_usage_cost(
"gpt-5.3-codex",
CanonicalUsage(input_tokens=1000, output_tokens=500),
provider="openai-codex",
base_url="https://chatgpt.com/backend-api/codex",
)
assert result.status == "included"
assert float(result.amount_usd) == 0.0
def test_estimate_usage_cost_refuses_cache_pricing_without_official_cache_rate(monkeypatch):
monkeypatch.setattr(
"agent.usage_pricing.fetch_model_metadata",
lambda: {
"google/gemini-2.5-pro": {
"pricing": {
"prompt": "0.00000125",
"completion": "0.00001",
}
}
},
)
result = estimate_usage_cost(
"google/gemini-2.5-pro",
CanonicalUsage(input_tokens=1000, output_tokens=500, cache_read_tokens=100),
provider="openrouter",
base_url="https://openrouter.ai/api/v1",
)
assert result.status == "unknown"
def test_custom_endpoint_models_api_pricing_is_supported(monkeypatch):
monkeypatch.setattr(
"agent.usage_pricing.fetch_endpoint_model_metadata",
lambda base_url, api_key=None: {
"zai-org/GLM-5-TEE": {
"pricing": {
"prompt": "0.0000005",
"completion": "0.000002",
}
}
},
)
entry = get_pricing_entry(
"zai-org/GLM-5-TEE",
provider="custom",
base_url="https://llm.chutes.ai/v1",
api_key="test-key",
)
assert float(entry.input_cost_per_million) == 0.5
assert float(entry.output_cost_per_million) == 2.0
def test_nous_portal_pricing_preserves_vendor_prefixed_model_ids(monkeypatch):
seen = {}
def _fake_fetch_endpoint_model_metadata(base_url, api_key=None):
seen["base_url"] = base_url
return {
"openai/gpt-5.5-pro": {
"pricing": {
"prompt": "0.000025",
"completion": "0.000125",
}
}
}
monkeypatch.setattr(
"agent.usage_pricing.fetch_endpoint_model_metadata",
_fake_fetch_endpoint_model_metadata,
)
entry = get_pricing_entry("openai/gpt-5.5-pro", provider="nous")
assert seen["base_url"] == "https://inference-api.nousresearch.com/v1"
assert float(entry.input_cost_per_million) == 25.0
assert float(entry.output_cost_per_million) == 125.0
def test_deepseek_v4_pro_pricing_entry_exists():
"""Regression test: deepseek-v4-pro must have a pricing entry.
Before this fix, deepseek-v4-pro sessions showed as unknown cost
in hermes insights because the _OFFICIAL_DOCS_PRICING table had no
entry for that model. See #24218.
"""
entry = get_pricing_entry(
"deepseek-v4-pro",
provider="deepseek",
)
assert entry is not None
assert entry.input_cost_per_million is not None
assert entry.output_cost_per_million is not None
assert float(entry.input_cost_per_million) == 1.74
assert float(entry.output_cost_per_million) == 3.48
assert float(entry.cache_read_cost_per_million) == 0.0145
def test_deepseek_v4_pro_estimate_usage_cost():
"""Ensure deepseek-v4-pro sessions get a dollar estimate, not unknown."""
result = estimate_usage_cost(
"deepseek-v4-pro",
CanonicalUsage(input_tokens=1000000, output_tokens=500000),
provider="deepseek",
)
assert result.status == "estimated"
assert result.amount_usd is not None
# 1M input × $1.74/M + 500K output × $3.48/M = $1.74 + $1.74 = $3.48
assert float(result.amount_usd) == 3.48