Model API cost guides
Exact-model token and cache rates, with three clearly defined monthly workloads. Estimates use the enabled catalog, not fixed promotional prices.
GPT-6 Solprofessional question answering ·
gpt-6-sol- GPT-6 Astra
technical research and analysis ·
gpt-6-astra - GPT-6 Luna
high-volume support replies ·
gpt-6-luna - GPT-6.1 Sol
code review ·
gpt-6.1-sol - GPT-5.6 Sol
multi-step development work ·
gpt-5.6-sol - GPT-5.6 Terra
everyday document analysis ·
gpt-5.6-terra - GPT-5.6 Luna
short summaries ·
gpt-5.6-luna - GPT-5.5
technical problem solving ·
gpt-5.5 - GPT-5.4 Mini
structured extraction ·
gpt-5.4-mini - GPT-5.4 Nano
ticket classification ·
gpt-5.4-nano - GPT-5 Mini
compact business replies ·
gpt-5-mini 
Claude Fable 5.1complex agent planning ·
claude-fable-5-1- Claude Opus 5.5
sustained code analysis ·
claude-opus-5-5 - Claude Opus 5
technical design reviews ·
claude-opus-5 - Claude Sonnet 5
coding and documentation ·
claude-sonnet-5 - Claude Haiku 4.5
high-volume text workflows ·
claude-haiku-4-5 
Gemini 4 Argonlong-document analysis ·
gemini-4-argon- Gemini 3.8 Flash
interactive text assistance ·
gemini-3.8-flash - Gemini 3.1 Pro
reasoned document answers ·
gemini-3.1-pro-preview - Gemini 3.1 Flash Lite
lightweight extraction ·
gemini-3.1-flash-lite - Gemini 3 Flash
short reasoning prompts ·
gemini-3-flash-preview - Gemini 2.5 Pro
existing document pipelines ·
gemini-2.5-pro - GPT-6 Sol Fast
priority-serving text requests ·
gpt-6-sol-fast - GPT-6 Astra Fast
priority technical analysis ·
gpt-6-astra-fast - Claude Opus 5.5 Fast
priority code-review steps ·
claude-opus-5-5-fast