Avg blended cost · $/M tokens
Four price cuts in a week; the index falls to $1.89.
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TPI — Avg blended cost over time
TPI movements reflect the real cost of accessing frontier AI — rising as more capable models define the market, falling as cheaper alternatives gain traction.
Weekly pricing news
Updated October 30, 2026GPT-6.1 Terra replaces GPT-5.6 Terra at less than half the price
OpenAI's mid-tier successor costs $1/$5 against $2/$12, and outscores it.
Mistral halves Large 4 as its weights go public
The API price fell to $0.70/$2.10 alongside the open-weights release, at half its list price a week ago.
Kimi and Qwen successors arrive cheaper
Kimi K3.1 Pro replaces K3 at a third less, and Qwen 3.7 Plus replaces 3.6 Plus at under two thirds of the price.
Weekly pricing news
Updated October 30, 2026GPT-6.1 Terra replaces GPT-5.6 Terra at less than half the price
OpenAI's mid-tier successor costs $1/$5 against $2/$12, and outscores it.
Mistral halves Large 4 as its weights go public
The API price fell to $0.70/$2.10 alongside the open-weights release, at half its list price a week ago.
Kimi and Qwen successors arrive cheaper
Kimi K3.1 Pro replaces K3 at a third less, and Qwen 3.7 Plus replaces 3.6 Plus at under two thirds of the price.
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Model Positioning Map
Price vs capability tier across all TPI index members. Compare models in detail →
Fast — speed & cost·Mid — balanced·Frontier — highest capability
Floor and ceiling
How the gap between the cheapest and most expensive index members has evolved through 2026. Compare models in detail →
Models in index = number of AI models tracked. Multiplier = ratio of the most expensive blended price to the cheapest.
Cost Per Task
Costs calculated at TPI average · Input $1.97/M · Output $9.24/M · Use the Simulator to model your specific workload.
Email summary
Summarize a typical business email
$0.0019
↳ 500 in / 100 out tokens
Blog post
Generate a 1000-word blog article
$0.0132
↳ 340 in / 1,360 out tokens
Code review
Review 200 lines of code
$0.0137
↳ 3,200 in / 800 out tokens
Chat conversation
Average multi-turn chat session
$0.0122
↳ 1,500 in / 1,000 out tokens
SQL generation
Generate SQL from natural language
$0.0095
↳ 850 in / 850 out tokens
RAG query
Answer a question using retrieved context
$0.0105
↳ 3,000 in / 500 out tokens
Token counts shown are upper-end estimates for typical production workloads. Actual usage varies by prompt structure, context size, and use case.