Intelligence & cost · updated Oct 8, 2026
Intelligence 155: GPT-5.2 Pro-class AI
Intelligence 155 first arrived in Dec 2025 with GPT-5.2 Pro (OpenAI), at $57.75 per million tokens. Today 30 models from 9 labs reach it, 2 of them open-weight. The cheapest, GPT-6 Luna, costs $0.20: 290× cheaper.
First reached
Dec 2025
GPT-5.2 Pro, OpenAI · launch price $57.75
Available today
30 models
from 9 labs · 2 open-weight · 31 have ever reached it
Cheapest today
$0.20
GPT-6 Luna · 290× cheaper than at debut
Open-weight lag
7.1 months
Kimi K3 (Moonshot) was the first downloadable model here
| Model | Lab | Weights | ECI | Cheapest $ / M tokens | Via |
|---|---|---|---|---|---|
| GPT-6 Luna2026-09 | OpenAI · US | closed | ECI 156.3 | $0.20 | via Microsoft Azure |
| GPT-5.6 Luna2026-07 | OpenAI · US | closed | ECI 156.4 | $0.45 | via Microsoft Azure |
| Gemini 3.7 Flash2026-08 | Google DeepMind · US | closed | ECI 157.3 | $1.50 | via DeepInfra |
| Gemini 3.8 Flash2026-09 | Google DeepMind · US | closed | ECI 156.7 | $1.50 | via Google Vertex AI |
| DeepSeek V4 Pro 08132026-08 | DeepSeek · China | open | ECI 155.3 | $1.63 | via DeepInfra |
| GLM-5.32026-08 | Z.ai (Zhipu AI) · China | closed | ECI 155.6 | $1.94 | via FriendliAI |
| Muse Spark 1.32026-09 | Meta AI · US | closed | ECI 156.8 | $2 | via Meta |
| Qwen3.8 Max (0902)2026-09 | Alibaba · China | closed | ECI 155.1 | $2.48 | via DeepInfra |
| Grok 4.62026-08 | xAI · US | closed | ECI 156.4 | $3 | via Microsoft Azure |
| Claude Sonnet 52026-06 | Anthropic · US | closed | ECI 156.2 | $4 | via AWS Bedrock |
| GPT-6 Sol2026-09 | OpenAI · US | closed | ECI 162.7 | $4 | via Microsoft Azure |
| Claude Sonnet 5.52026-09 | Anthropic · US | closed | ECI 165.0 | $4 | via AWS Bedrock |
| GPT-6.1 Sol2026-09 | OpenAI · US | closed | ECI 166.1 | $4 | via Microsoft Azure |
| GPT-5.6 Terra2026-07 | OpenAI · US | closed | ECI 159.6 | $4.50 | via Microsoft Azure |
| GPT-5.3 Codex2026-02 | OpenAI · US | closed | ECI 156.8 | $4.81 | via Microsoft Azure |
| Kimi K32026-07 | Moonshot · China | open | ECI 157.4 | $5.40 | via Together AI |
| GPT-5.42026-03 | OpenAI · US | closed | ECI 156.8 | $5.63 | via Microsoft Azure |
| GPT-5.6 Sol2026-07 | OpenAI · US | closed | ECI 161.7 | $8 | via Microsoft Azure |
| Claude Opus 5.52026-09 | Anthropic · US | closed | ECI 167.3 | $8 | via AWS Bedrock |
| Claude Opus 4.62026-02 | Anthropic · US | closed | ECI 155.2 | $10 | via AWS Bedrock |
| Claude Opus 4.72026-04 | Anthropic · US | closed | ECI 156.3 | $10 | via AWS Bedrock |
| Claude Opus 4.82026-05 | Anthropic · US | closed | ECI 158.2 | $10 | via AWS Bedrock |
| Claude Opus 52026-07 | Anthropic · US | closed | ECI 162.8 | $10 | via AWS Bedrock |
| GPT-5.52026-04 | OpenAI · US | closed | ECI 159.1 | $11.25 | via Microsoft Azure |
| Claude Fable 52026-06 | Anthropic · US | closed | ECI 162.1 | $20 | via AWS Bedrock |
| Claude Fable 5.12026-09 | Anthropic · US | closed | ECI 164.7 | $20 | via AWS Bedrock |
| GPT-6 Astra2026-09 | OpenAI · US | closed | ECI 166.4 | $20 | via Microsoft Azure |
| GPT-5.2 Pro2025-12 | OpenAI · US | closed | ECI 155.4 | $57.75 | via Microsoft Azure |
| GPT-5.4 Pro2026-03 | OpenAI · US | closed | ECI 158.9 | $67.50 | via Microsoft Azure |
| GPT-5.5 Pro2026-04 | OpenAI · US | closed | ECI 162.1 | $67.50 | via Microsoft Azure |
Source: A model reaches level 155 when its Epoch Capabilities Index estimate is at or above it. Prices are list prices per million tokens, blended 3:1 input to output. · Epoch Capabilities Index · LiteLLM price map · Launch price source