Underclassic / model board
Public list prices and open-weight rows. Verified 2026-08-19. Blank $ cells mean there is no single official API price.
Model board (20) (USD per 1M tokens; verified 2026-08-19; blended = (3*input + 1*output) / 4; -- = open/self-host or no single public list)
| # | Model | Org | CC | Weights | Tier | In | Out | Blend |
| 1 | Claude Fable 5 | Anthropic | US | closed undisclosed |
flagship | $10.00 | $50.00 | $20.00 |
| Base input/output MTok list. | ||||||||
| 2 | Claude Opus 5 | Anthropic | US | closed undisclosed |
flagship | $5.00 | $25.00 | $10.00 |
| 3 | Claude Sonnet 5 | Anthropic | US | closed undisclosed |
workhorse | $2.00 | $10.00 | $4.00 |
| Introductory list through 2026-08-31; standard later $3/$15 on vendor page history. | ||||||||
| 4 | Claude Haiku 4.5 | Anthropic | US | closed undisclosed |
fast | $1.00 | $5.00 | $2.00 |
| 5 | GPT-5.6 Sol | OpenAI | US | closed undisclosed |
flagship | $5.00 | $30.00 | $11.25 |
| Short-context standard tier. | ||||||||
| 6 | GPT-5.5 | OpenAI | US | closed undisclosed |
flagship | $5.00 | $30.00 | $11.25 |
| Short-context (<272K) list. | ||||||||
| 7 | GPT-5.6 Terra | OpenAI | US | closed undisclosed |
workhorse | $2.00 | $12.00 | $4.50 |
| 8 | GPT-5.4 mini | OpenAI | US | closed undisclosed |
fast | $0.75 | $4.50 | $1.69 |
| 9 | GPT-5.6 Luna | OpenAI | US | closed undisclosed |
commodity | $0.20 | $1.20 | $0.45 |
| 10 | Grok 4.6 | xAI | US | closed undisclosed |
flagship | $2.00 | $6.00 | $3.00 |
| Prompt <200k list tier. | ||||||||
| 11 | Grok 4.3 | xAI | US | closed undisclosed |
workhorse | $1.25 | $2.50 | $1.56 |
| Prompt <200k list tier. | ||||||||
| 12 | DeepSeek V4 Flash | DeepSeek | CN | open ~284B total / ~13B active (MoE) |
commodity | $0.44 | $1.32 | $0.66 |
| Peak cache-miss list. Off-peak is half; cache-hit far lower. MIT weights. | ||||||||
| 13 | DeepSeek V4 Pro | DeepSeek | CN | open ~1.6T total / ~49B active (MoE) |
workhorse | $1.32 | $3.96 | $1.98 |
| Peak cache-miss list. Off-peak half. | ||||||||
| 14 | Gemini 3.1 Pro | US | closed undisclosed |
workhorse | $2.00 | $12.00 | $4.50 | |
| Vendor page is JS-rendered; treat as check-against-source. Long-context tiers higher. | ||||||||
| 15 | Qwen3.5-397B-A17B | Alibaba | CN | open 397B total / 17B active |
open-flagship | -- | -- | -- |
| Apache-class open weights. API $ varies by hoster -- not a single list price. | ||||||||
| 16 | Llama 4 Maverick | Meta | US | open ~400B total / ~17B active |
open-flagship | -- | -- | -- |
| Community license. Hoster list rates vary; EU multimodal caveats apply. | ||||||||
| 17 | Llama 4 Scout | Meta | US | open ~109B total / ~17B active |
open-longctx | -- | -- | -- |
| Long-context open path. Hoster $ varies. | ||||||||
| 18 | Mistral Medium 3.5 | Mistral | FR | closed undisclosed |
workhorse | -- | -- | -- |
| EU frontier multimodal. Confirm current API list in Mistral console -- page not scraped to a stable public table here. | ||||||||
| 19 | Mistral Small 4 | Mistral | FR | open ~119B total / ~6B active (MoE) |
open-efficient | -- | -- | -- |
| Hybrid instruct/reason/code. Hoster $ varies. | ||||||||
| 20 | Gemma 4 31B | US | open 31B |
local-desk | -- | -- | -- | |
| Desk-side class open weights. Self-host cost is silicon+power, not a metered list. | ||||||||
These are public list prices from vendor pages where linked. Blank cells mean open weights or hoster menus with no single official API price. This table is not a claim about how much electricity or chips cost the lab. Useful signal: how far cheap API tiers sit from flagship list rates, and which models ship weights you can run yourself.