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feat(anthropic): add Claude 5 family pricing & align current rates #1767

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chopratejas merged 1 commit into from
Jul 3, 2026
+51 −18
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feat(anthropic): add Claude 5 family pricing & align current rates #1767

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36 changes: 27 additions & 9 deletions headroom/providers/anthropic.py
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Original file line number Diff line number Diff line change
Expand Up @@ -83,12 +83,22 @@ def sanitize_anthropic_model_metadata(value: Any) -> Any:
# Anthropic model context limits
# All Claude 3+ models have 200K context
ANTHROPIC_CONTEXT_LIMITS: dict[str, int] = {
# Claude Fable 5 - 1M context
"claude-fable-5": 1000000,
# Claude Opus 4.8 - 1M context
"claude-opus-4-8": 1000000,
# Claude 4.7 (Opus 4.7) - 1M context
"claude-opus-4-7": 1000000,
# Claude 4.6 (Opus 4.6) - 1M context
"claude-opus-4-6": 1000000,
# Claude 4.5 (Opus 4.5)
"claude-opus-4-5-20251101": 200000,
# Claude Sonnet 5 - 1M context
"claude-sonnet-5": 1000000,
# Claude Sonnet 4.6 - 1M context window
"claude-sonnet-4-6": 1000000,
# Claude Sonnet 4.5
"claude-sonnet-4-5": 200000,
# Claude 4 (Sonnet 4, Haiku 4)
"claude-sonnet-4-20250514": 200000,
"claude-haiku-4-5-20251001": 200000,
Expand All @@ -110,17 +120,25 @@ def sanitize_anthropic_model_metadata(value: Any) -> Any:

# Fallback pricing - LiteLLM is preferred source
# NOTE: These are ESTIMATES. Always verify against actual Anthropic billing.
# Last updated: 2025-01-14
# Last updated: 2026-07-04
ANTHROPIC_PRICING: dict[str, dict[str, float]] = {
# Claude 4.7 (Opus tier pricing)
"claude-opus-4-7": {"input": 15.00, "output": 75.00, "cached_input": 1.50},
# Claude 4.6 (Opus tier pricing)
"claude-opus-4-6": {"input": 15.00, "output": 75.00, "cached_input": 1.50},
# Claude 4.5 (Opus tier pricing)
"claude-opus-4-5-20251101": {"input": 15.00, "output": 75.00, "cached_input": 1.50},
# Claude Fable 5 (anthropic.com/pricing): $10 in / $50 out, cache read $1.
"claude-fable-5": {"input": 10.00, "output": 50.00, "cached_input": 1.00},
# Claude Opus 4.8 — current Opus tier: $5 in / $25 out, cache read $0.50.
"claude-opus-4-8": {"input": 5.00, "output": 25.00, "cached_input": 0.50},
# Claude 4.7 (current Opus tier)
"claude-opus-4-7": {"input": 5.00, "output": 25.00, "cached_input": 0.50},
# Claude 4.6 (current Opus tier)
"claude-opus-4-6": {"input": 5.00, "output": 25.00, "cached_input": 0.50},
# Claude 4.5 (current Opus tier — same rates as 4.6–4.8)
"claude-opus-4-5-20251101": {"input": 5.00, "output": 25.00, "cached_input": 0.50},
# Claude Sonnet 5 / 4.6 / 4.5 (current Sonnet tier): $3 in / $15 out, cache read $0.30
"claude-sonnet-5": {"input": 3.00, "output": 15.00, "cached_input": 0.30},
"claude-sonnet-4-6": {"input": 3.00, "output": 15.00, "cached_input": 0.30},
"claude-sonnet-4-5": {"input": 3.00, "output": 15.00, "cached_input": 0.30},
# Claude 4 (Sonnet/Haiku tier pricing)
"claude-sonnet-4-20250514": {"input": 3.00, "output": 15.00, "cached_input": 0.30},
"claude-haiku-4-5-20251001": {"input": 0.80, "output": 4.00, "cached_input": 0.08},
"claude-haiku-4-5-20251001": {"input": 1.00, "output": 5.00, "cached_input": 0.10},
# Claude 3.5
"claude-3-5-sonnet-20241022": {"input": 3.00, "output": 15.00, "cached_input": 0.30},
"claude-3-5-sonnet-latest": {"input": 3.00, "output": 15.00, "cached_input": 0.30},
Expand All @@ -136,7 +154,7 @@ def sanitize_anthropic_model_metadata(value: Any) -> Any:
# Default limits for pattern-based inference
# Used when a model isn't in the explicit list but matches a known pattern
_PATTERN_DEFAULTS = {
"opus": {"context": 200000, "pricing": {"input": 15.00, "output": 75.00, "cached_input": 1.50}},
"opus": {"context": 200000, "pricing": {"input": 5.00, "output": 25.00, "cached_input": 0.50}},
"sonnet": {
"context": 200000,
"pricing": {"input": 3.00, "output": 15.00, "cached_input": 0.30},
Expand Down
18 changes: 9 additions & 9 deletions tests/test_provider_model_fallback.py
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Expand Up @@ -94,17 +94,17 @@ def test_pattern_based_inference_opus(self):
assert limit == 200000

pricing = provider._get_pricing("claude-opus-5-20260101")
assert pricing["input"] == 15.00
assert pricing["output"] == 75.00
assert pricing["input"] == 5.00
assert pricing["output"] == 25.00

def test_pattern_based_inference_sonnet(self):
"""Test pattern-based inference for sonnet models."""
provider = AnthropicProvider()

limit = provider.get_context_limit("claude-sonnet-5-20260101")
limit = provider.get_context_limit("claude-sonnet-6-20260101")
assert limit == 200000

pricing = provider._get_pricing("claude-sonnet-5-20260101")
pricing = provider._get_pricing("claude-sonnet-6-20260101")
assert pricing["input"] == 3.00
assert pricing["output"] == 15.00

Expand Down Expand Up @@ -159,9 +159,9 @@ def test_pricing_for_known_models(self):

# Claude Opus 4.5
pricing = provider._get_pricing("claude-opus-4-5-20251101")
assert pricing["input"] == 15.00
assert pricing["output"] == 75.00
assert pricing["cached_input"] == 1.50
assert pricing["input"] == 5.00
assert pricing["output"] == 25.00
assert pricing["cached_input"] == 0.50

def test_cost_estimation_for_new_models(self):
"""Test cost estimation works for new models."""
Expand All @@ -174,8 +174,8 @@ def test_cost_estimation_for_new_models(self):
cached_tokens=0,
)

# $15/1M input + $75/1M * 0.1M output = $15 + $7.5 = $22.5
assert cost == pytest.approx(22.5, rel=0.01)
# $5/1M input + $25/1M * 0.1M output = $5 + $2.5 = $7.5
assert cost == pytest.approx(7.5, rel=0.01)


class TestAnthropicConfigLoading:
Expand Down
15 changes: 15 additions & 0 deletions tests/test_providers/test_anthropic.py
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Expand Up @@ -77,6 +77,11 @@ def test_get_context_limit_claude_opus(self, anthropic_provider):
def test_get_context_limit_strips_ansi_model_suffix(self, anthropic_provider):
assert anthropic_provider.get_context_limit("claude-opus-4-7[1m]") == 1000000

def test_get_context_limit_claude_5_family(self, anthropic_provider):
assert anthropic_provider.get_context_limit("claude-fable-5") == 1000000
assert anthropic_provider.get_context_limit("claude-opus-4-8") == 1000000
assert anthropic_provider.get_context_limit("claude-sonnet-5") == 1000000

def test_supports_model_known(self, anthropic_provider):
assert anthropic_provider.supports_model("claude-3-5-sonnet-20241022")

Expand Down Expand Up @@ -110,3 +115,13 @@ def test_pricing_lookup_strips_ansi_model_suffix(self, anthropic_provider):
assert anthropic_provider._get_pricing("claude-opus-4-7[1m]") == (
anthropic_provider._get_pricing("claude-opus-4-7")
)

def test_pricing_claude_5_family(self, anthropic_provider):
fable = anthropic_provider._get_pricing("claude-fable-5")
assert fable == {"input": 10.00, "output": 50.00, "cached_input": 1.00}

opus = anthropic_provider._get_pricing("claude-opus-4-8")
assert opus == {"input": 5.00, "output": 25.00, "cached_input": 0.50}

sonnet = anthropic_provider._get_pricing("claude-sonnet-5")
assert sonnet == {"input": 3.00, "output": 15.00, "cached_input": 0.30}
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