gpt-5-6-luna
Also listed as azure/eu/gpt-5.6-luna, azure/gpt-5.6-luna, azure/us/gpt-5.6-luna, bedrock_mantle/openai.gpt-5.6-luna, bedrock_mantle/us-gov-west-1/openai.gpt-5.6-luna, databricks/databricks-gpt-5-6-luna, global.openai.gpt-5.6-luna, gpt-5.6-luna, openrouter/openai/gpt-5.6-luna, perplexity/openai/gpt-5.6-luna…
Price over time
The same capability, cheaper
gpt-5-6-luna scores 92% on GPQA Diamond. The cheapest model clearing the GPQA 90%+ bar today is glm-5-3-flash at $0.237 blended — 1.9× less than this model's $0.450. Blended = 75% input, 25% output. Capability is one benchmark, not the whole story.
- 92%
- GPQA Diamond
- 98%
- Mock AIME
- 922,000
- Context window
- 2026-07-09
- Released
- OpenAI
- Developer
- 2
- Price changes
- 2026-06-18
- Tracked since
Recorded price changes
One row per change, newest first. US dollars per million tokens. Each row links to the exact commit or archived page the figure was read from.
| Date | Input | Output | Cached in | Blended | Change | Source |
|---|---|---|---|---|---|---|
| 2026-09-03 | $0.200 | $1.20 | $0.020 | $0.450 | litellm@32a3a65 | |
| 2026-06-18 | $0.200 | $1.20 | $0.020 | $0.450 | litellm@dfc22d3 |
How this was collected
Prices come from replaying the version history of LiteLLM's public pricing file and from vendor pricing pages archived by the Wayback Machine, then cleaned to remove metadata edits, same-day churn, unit slips and typo corrections. The full method and every script is in the repository. List pricing, not negotiated pricing.
See how the cost of a fixed level of capability has fallen →