index · updated 2026-09-27 · since 2026-07-17

The Token Price Index

What a million AI tokens costs, tracked every day. The Market line is the median blended price across every paid model in the catalog; the Frontier line is the same median over today's twenty highest-scoring models. Prices are blended 3:1 input to output, the usual shape of real workloads.

Market · median of 492 paid models
$0.85/ 1M tokens
-3.1% 30 days +4.6% since 2026-07-17
Frontier 20 · median of the top-scoring models
$4.00/ 1M tokens
-16.9% 30 days -60.0% since 2026-07-17
Last 30 days
27 cuts 25 increases
70 trading days in the series
MarketFrontier 20USD per 1M tokens, blended
$0.00$3.70$7.40$11.10 Jul 17Aug 22Sep 27

Yesterday's moves 11 price changes

ModelWasNowChange
DeepSeek: DeepSeek Pro Latest $1.062$0.366 -65.5%
Z.ai: GLM Flash Latest $0.155$0.069 -55.6%
Z.ai: GLM 5.3 Flash $0.155$0.069 -55.6%
DeepSeek: DeepSeek V4.1 Flash $0.210$0.099 -53.0%
MiniMax: MiniMax M2.7 $0.525$0.367 -30.0%
Z.ai: GLM Latest $0.729$0.583 -20.1%
DeepSeek: DeepSeek V4 Pro 0423 $0.523$0.435 -16.9%
MiniMax: MiniMax M2 $0.525$0.446 -15.0%
DeepSeek: DeepSeek V4 Flash Vision Exp $0.330$0.323 -2.0%
MoonshotAI: Kimi Latest $3.033$3.000 -1.1%
DeepSeek: DeepSeek V4 Pro 0813 $0.396$1.059 +167.4%

Biggest cuts, 30 days

ModelWasNowChange
Meta: Llama 3.3 70B Instructsince 2026-09-03 $0.710$0.155-78.2%
Z.ai: GLM Latestsince 2026-09-27 $2.150$0.583-72.9%
DeepSeek: DeepSeek V4 Pro 0423since 2026-09-27 $1.087$0.435-60.0%
z-ai-glm-5-2-batchsince 2026-09-09 $2.150$1.075-50.0%
DeepSeek: DeepSeek V3.1since 2026-09-08 $0.825$0.425-48.5%
DeepSeek: DeepSeek V4 Flash 0423since 2026-09-26 $0.111$0.059-46.9%
Z.ai: GLM 5.2since 2026-09-20 $1.828$0.998-45.4%
Z.ai: GLM 5.3 Flashsince 2026-09-27 $0.119$0.069-42.1%
MoonshotAI: Kimi Latestsince 2026-09-27 $5.100$3.000-41.2%
OpenAI: gpt-oss-20bsince 2026-09-23 $0.055$0.036-34.5%
MiniMax: MiniMax M2.7since 2026-09-27 $0.525$0.367-30.0%
MoonshotAI: Kimi K2.5since 2026-09-01 $1.200$0.900-25.0%

Biggest increases, 30 days

ModelWasNowChange
OpenAI: gpt-oss-120bsince 2026-09-18 $0.070$0.262+273.7%
Upstage: Solar Pro 4since 2026-09-11 $0.052$0.158+200.0%
Qwen: Qwen2.5 VL 72B Instructsince 2026-09-04 $0.375$0.850+126.7%
DeepSeek: DeepSeek V4 Flash Latestsince 2026-09-26 $0.048$0.096+101.6%
Google: Gemini 3.7 Flashsince 2026-08-29 $0.750$1.500+100.0%
Google: Gemini 3.7 Flash (batch)since 2026-09-03 $0.375$0.750+100.0%
Google: Gemini Flash Latestsince 2026-08-29 $0.750$1.500+100.0%
Qwen: Qwen3 30B A3B Instruct 2507since 2026-09-25 $0.084$0.150+77.9%

How the index is computed

Blended price. For every model, the blended cost per million tokens is three parts input price to one part output price, the typical ratio of a production workload. Free models and zero-priced listings are excluded.

Market. The median blended price across every paid model in the catalog that day. A median, not a mean, so a single $75-per-million flagship or a $0.02 distillate cannot drag it around. New models enter the day they appear; retired models stay at their last price until the feed drops them.

Frontier 20. The same median over today's twenty highest quality-score models in the catalog, fixed as a basket and priced back through history: Anthropic: Claude Opus 5.5, Google: Gemini 2.5 Pro, Anthropic: Claude Fable 5.1, Anthropic: Claude Fable 5, OpenAI: GPT-6 Astra, Anthropic: Claude Opus 5, Anthropic: Claude Opus 4.8, Meta: Muse Spark 1.3, Anthropic: Claude Opus 4.7, OpenAI: GPT-6 Sol, OpenAI: o4 Mini High, OpenAI: GPT-5.4, OpenAI: GPT-5.5, OpenAI: GPT-5.6 Sol, SpaceXAI: Grok 4.7, Xiaomi: MiMo-V2.6-Pro, Qwen: Qwen3.8 Max (0902), Z.ai: GLM 5.3, SpaceXAI: Grok 4.6, Nous: Hermes 4 405B.

History. Prices are recorded from the OpenRouter catalog on every daily rebuild since 2026-07-17 and kept as a change log, so each day's value is the last price seen on or before that date. The movers tables compare each model's price today with its price thirty days earlier. The whole series is available as tpi.json; for live per-model pricing, see the API.

Rebuilt 2026-09-27. Context, not financial advice; vendor list prices, before volume discounts.

The Model Movers Report

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