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API prices for developers
AI model API prices 2026
Prices per million tokens in US dollars, standard pay-as-you-go, before tax. Input is what you send (prompt, files, history); output is what the model writes — usually several times dearer.
Prices checked: November 2026
Cheapest for the example: GPT-6 Luna / Claude Haiku 5.5 — $0.35
One million tokens is roughly 750,000 English words. The same text in Arabic usually takes more tokens, so it costs more.
Free API tiers and credits
How we collect prices
OpenAI
Model
Input / 1M
Output / 1M
Cached input / 1M
Context
1,000 requests*
GPT-6 Astra
Flagship. Prompts over 272K input tokens: 2x input, 1.5x output for the whole request
OpenAI official pricing
$10.00
$50.00
$1.00
1.05M
$35
GPT-6.1 Sol
Balanced price and quality. Same surcharge above 272K input tokens
OpenAI official pricing
$2.00
$10.00
$0.10
1.05M
$7
GPT-6.1 Terra
Fast and efficient. Same surcharge above 272K input tokens
OpenAI official pricing
$1.00
$5.00
$0.05
1.05M
$3.5
GPT-6 Luna
Cheapest OpenAI model, for high-volume tasks
OpenAI official pricing
$0.10
$0.50
$0.01
1.05M
$0.35
Google
Model
Input / 1M
Output / 1M
Cached input / 1M
Context
1,000 requests*
Gemini 4 Argon
Introductory price until Nov 30, 2026 ($4 / $20 from Dec 1). Not on the free tier
Google official pricing
$2.00
$10.00
$0.10
1M
$7
Gemini 3.8 Flash
Introductory price until Dec 31, 2026 ($1.50 / $7.50 from Jan 1, 2027). Free tier in AI Studio
Google official pricing
$0.75
$3.75
$0.075
1M
$2.62
Gemini 3.5 Flash-Lite
Free tier available
Google official pricing
$0.30
$2.50
—
1M
$1.55
Gemini 3.1 Flash-Lite
Cheapest current Gemini model. Free tier available
Google official pricing
$0.25
$1.50
$0.025
1M
$1
Anthropic
Model
Input / 1M
Output / 1M
Cached input / 1M
Context
1,000 requests*
Claude Fable 5.1
Anthropic's most capable model
Anthropic official pricing
$10.00
$50.00
$0.25
1M
$35
Claude Opus 5.5
Same price across the whole 1M context
Anthropic official pricing
$4.00
$20.00
$0.20
1M
$14
Claude Sonnet 5.5
Cache reads cut from $0.20 to $0.10 on Oct 7, 2026
Anthropic official pricing
$2.00
$10.00
$0.10
1M
$7
Claude Haiku 5.5
Prompts over 100K tokens: $0.50 input / $2.50 output
Anthropic official pricing
$0.10
$0.50
$0.01
1M
$0.35
DeepSeek
Model
Input / 1M
Output / 1M
Cached input / 1M
Context
1,000 requests*
DeepSeek V4.1 Flash
Peak price; half price off-peak (peak: 01:00-04:00 and 06:00-10:00 UTC, Mon-Fri)
DeepSeek official pricing
$0.30
$1.20
$0.006
1M
$0.9
xAI
Model
Input / 1M
Output / 1M
Cached input / 1M
Context
1,000 requests*
Grok 4.7
Prompts over 200K tokens: $4 input / $12 output
xAI official pricing
$2.00
$6.00
$0.50
500K
$5
Grok 4.3
Prompts over 200K tokens: $2.50 input / $5 output
xAI official pricing
$1.25
$2.50
$0.20
1M
$2.5
*1,000 requests, each with 1,000 input and 500 output tokens.
Price changes
No API price change logged yet — tracking started in November 2026.