Add 1-hour cache write pricing for us-gov Haiku 4.5

[Cyberfilo]

Relevant issues

Related to the us-gov pricing audit that surfaced #27120 — Haiku 4.5's us-gov entries had correct 5m rates but were missing the 1-hour cache field. Companion to the parallel Sonnet 4.5 fix PR.

Pre-Submission checklist

• Added testing in `tests/test_litellm/` — `tests/test_litellm/test_bedrock_usgov_haiku_1hr_cache.py`.
• My PR passes all unit tests on `make test-unit`.
• My PR's scope is as isolated as possible — adds the 1-hour cache field to two us-gov Haiku 4.5 entries.
• Greptile review pending — will comment `@greptileai` after open.

Type

🐛 Bug Fix

Changes

AWS Bedrock GovCloud applies a +20% premium over global Anthropic rates. For Haiku 4.5:

	5m cache write	1h cache write
Global (`anthropic.claude-haiku-4-5-20251001-v1:0`)	$1.25 / MTok	$2.00 / MTok
us-gov (1.2× global)	$1.50 / MTok (already correct)	$2.40 / MTok (added in this PR)

The 5-minute rate was already at the correct +20% premium. Only the `cache_creation_input_token_cost_above_1hr` field was missing.

Adds `cache_creation_input_token_cost_above_1hr: 2.4e-06` to:

• `bedrock/us-gov-east-1/anthropic.claude-haiku-4-5-20251001-v1:0`
• `bedrock/us-gov-west-1/anthropic.claude-haiku-4-5-20251001-v1:0`

…in both `model_prices_and_context_window.json` and `litellm/model_prices_and_context_window_backup.json`.

Adds `tests/test_litellm/test_bedrock_usgov_haiku_1hr_cache.py` with two parametrized cases plus the 1.6× 5m-to-1h ratio invariant check.

Test plan

```sh
$ python -m pytest tests/test_litellm/test_bedrock_usgov_haiku_1hr_cache.py -v
...
============================== 2 passed in 0.10s ===============================
```

Black + ruff clean. Diff: 4 lines in JSON files (2 each) + 50 lines of new test = 54 insertions total.

[greptile-apps]

Greptile Summary

Adds the missing cache_creation_input_token_cost_above_1hr: 2.4e-06 field to the bedrock/us-gov-east-1 and bedrock/us-gov-west-1 Haiku 4.5 entries in both pricing JSON files. The value is consistent with the existing +20% GovCloud premium: global rate is $2.00/MTok → us-gov is $2.40/MTok, and the 1.6× ratio relative to the already-correct 5m rate ($1.50/MTok) checks out.

• Both model_prices_and_context_window.json and the backup file receive identical 2-line additions, keeping them in sync.
• A new parametrized test in tests/test_litellm/ validates the 5m rate, the new 1h rate, and the 1.6× ratio invariant for both us-gov regions using only local file reads.

Confidence Score: 5/5

Pure data addition to two pricing JSON fields; no logic paths are altered and both files remain consistent with each other.

The change is isolated to four JSON lines adding a single well-defined pricing field. The value is mathematically correct (1.2× global, 1.6× existing 5m rate), both files are updated in lock-step, and the new tests exercise the changed entries without touching any shared infrastructure.

No files require special attention.

Important Files Changed

Filename	Overview
model_prices_and_context_window.json	Adds cache_creation_input_token_cost_above_1hr: 2.4e-06 to both us-gov-east-1 and us-gov-west-1 Haiku 4.5 entries; value is correctly 1.2× the global $2.00/MTok rate and 1.6× the existing 5m rate.
litellm/model_prices_and_context_window_backup.json	Mirrors the same two-line addition to the backup JSON, keeping root and backup in sync.
tests/test_litellm/test_bedrock_usgov_haiku_1hr_cache.py	New parametrized test covering both us-gov regions; validates the 5m rate, the new 1h rate, and the 1.6× ratio invariant using only local JSON file reads (no network calls).

_{Reviews (3): Last reviewed commit: "chore: trigger shin-agent re-eval on ret..." | Re-trigger Greptile}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

[oss-pr-review-agent-shin]

🤖 litellm-agent: This PR is currently BLOCKED from merge.

Score: 3/5 ❌

Why blocked:

• 1 PR-related CI failure (This PR will be auto-closed as it lacks a screenshot for proof of fix. Please include one in the PR description. Add the screenshot-exempt label if this PR has no visible output (e.g. pure docs, CI config).) (pr_related_failures, -2 pts)

Details: Score docked for: 1 PR-related CI failure (This PR will be auto-closed as it lacks a screenshot for proof of fix. Please include one in the PR description. Add the screenshot-exempt label if this PR has no visible output (e.g. pure docs, CI config).).

Fix the issues above and push an update — the bot will re-review automatically.

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[Cyberfilo]

@greptileai

[Cyberfilo]

Proof of fix

This is a pure data / pricing-JSON change with no visible runtime output — adding the screenshot-exempt justification by surfacing the regression-test run instead.

$ python -m pytest tests/test_litellm/test_*bedrock_usgov_haiku_1hr_cache.py -v
... 2 passed in 0.13s ...

JSON validity is also enforced by the existing test_aaamodel_prices_and_context_window_json_is_valid test. Black + ruff clean.

Requesting screenshot-exempt triage per the gate's own instructions for data-only PRs.

[Cyberfilo]

@greptileai please review commit de7e4203d3 — re-pushed to refresh the previously-verified review (shin-agent currently flagging it as edit-unverifiable). Pure-data PR adding cache_creation_input_token_cost_above_1hr: 2.4e-06 to two us-gov Haiku 4.5 entries per AWS docs (1.6× 5m). 2 parametrized regression tests.