Ranked by input cost per million tokens. Includes open-weight and proprietary models available via API.
Updated April 2026 · Source: AI Flash Report model database
| # | Model | Input/M | Output/M | Context | License |
|---|---|---|---|---|---|
| #1 |
Gemini 2.0 Flash
Google
|
$0.10 | $0.40 | 1M tokens | Proprietary |
| #2 |
GLM-5
Zhipu AI
|
$0.11 | $0.28 | 200K tokens | Proprietary (open weights for non-frontier sizes) |
| #3 |
Kimi K2
Moonshot AI
|
$0.15 | $2.50 | 2M tokens | Modified MIT (open weights) |
| #4 |
Claude 3 Haiku
Anthropic
|
$0.25/M | $1.25/M | 200K tokens | Proprietary |
| #5 |
DeepSeek V3.2
DeepSeek
|
$0.27 | $1.10 | 1M tokens | DeepSeek License (open weights, commercial OK) |
| #6 |
DeepSeek-V3
DeepSeek
|
$0.27 | $1.10 | 128K tokens | DeepSeek License (open weights) |
| #7 |
Gemini 2.5 Flash
Google
|
$0.30 | $2.50 | 1M tokens | Proprietary |
| #8 |
ChatGPT (GPT-3.5 Turbo)
OpenAI
|
$0.50/M | $1.50/M | 16K tokens | Proprietary |
| #9 |
Mistral Large 3
Mistral
|
$2.00 | $6.00 | 256K tokens | Mistral Commercial License |
| #10 |
GPT-5.2
OpenAI
|
$2.00 | $10.00 | 400K tokens | Proprietary |
| #11 |
Grok-2
xAI
|
$2/M | $10/M | 128K tokens | Proprietary |
| #12 |
GPT-5.1
OpenAI
|
$2.25 | $11.00 | 400K tokens | Proprietary |
| #13 |
Gemini 3.1 Pro
Google
|
$2.50 | $10.00 | 2M tokens | Proprietary |
| #14 |
Gemini 3 Pro
Google
|
$2.50 | $10.00 | 1M tokens | Proprietary |
| #15 |
GPT-5
OpenAI
|
$2.50 | $12.00 | 400K tokens | Proprietary |