Overview

Up-to-date comparison of LLM chat API pricing, features, and capabilities across all major providers. All prices are in USD per 1 million tokens.

Pricing & Feature Comparison

Last updated: 2026-03-10
Provider Model Input $/1M Output $/1M Context Max Output Free Tier Vision Function Calling Streaming JSON Mode OpenAI Compatible
OpenAI GPT-4o $2.50 $10.00 128k 4096 No Yes Yes Yes Yes Yes
OpenAI GPT-4o-mini $0.15 $0.60 128k 16384 No Yes Yes Yes Yes Yes
OpenAI o1 $15.00 $60.00 128k 32768 No Yes Yes No Yes Yes
OpenAI o3-mini $1.10 $4.40 200k 102400 No Yes Yes No Yes Yes
Anthropic Claude 3.5 Sonnet $3.00 $15.00 200k 8192 No Yes Yes Yes Yes No
Anthropic Claude 3 Opus $15.00 $75.00 200k 8192 No Yes Yes Yes Yes No
Anthropic Claude 4 Sonnet $2.50 $12.50 1M 204800 No Yes Yes Yes Yes No
Anthropic Claude 4 Opus $12.00 $60.00 2M 409600 No Yes Yes Yes Yes No
Google Gemini 2.0 Flash $0.075 $0.30 1M 8192 Free (1M/month) Yes Yes Yes Yes No
Google Gemini 2.0 Pro $1.25 $5.00 2M 8192 Free (150k/month) Yes Yes Yes Yes No
DeepSeek DeepSeek V3 $0.14 $0.28 128k 8192 Free ($1 credit) No Yes Yes Yes Yes
DeepSeek DeepSeek R1 $1.00 $2.00 128k 8192 Free ($1 credit) No Yes Yes Yes Yes
Alibaba Qwen-2.5 72B $0.10 $0.30 128k 8192 Free (unlimited) No Yes Yes Yes Yes
Alibaba Qwen-Max $0.50 $2.00 32k 8192 Free (1M tokens) Yes Yes Yes Yes Yes
Mistral Mistral Large 2 $2.00 $6.00 128k 8192 No No Yes Yes Yes Yes
Mistral Codestral 2501 $0.30 $0.90 256k 32768 No No Yes Yes Yes Yes
xAI Grok-2 $2.00 $10.00 128k 8192 No Yes Yes Yes Yes Yes

Latency Reference (TTFT)

Time to First Token (TTFT) benchmarks based on average response times for 1000 token input prompts:

Provider Model Average TTFT 95th Percentile
OpenAI GPT-4o-mini 200-300ms 500ms
OpenAI GPT-4o 300-500ms 800ms
Anthropic Claude 3.5 Sonnet 400-600ms 900ms
Google Gemini 2.0 Flash 150-250ms 400ms
DeepSeek DeepSeek V3 250-400ms 600ms
Alibaba Qwen-2.5 72B 200-350ms 550ms
Mistral Mistral Large 2 300-500ms 700ms
xAI Grok-2 350-600ms 850ms

Code Examples

cURL

bash 
curl https://api.openai.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -d '{
    "model": "gpt-4o",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }'
bash 
curl https://api.anthropic.com/v1/messages \
  -H "Content-Type: application/json" \
  -H "x-api-key: $ANTHROPIC_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -d '{
    "model": "claude-3-5-sonnet-20240620",
    "max_tokens": 1024,
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'
bash 
curl -X POST https://generativelanguage.googleapis.com/v1/models/gemini-2.0-flash:generateContent \
  -H "Content-Type: application/json" \
  -d '{
    "contents": [{"parts":[{"text": "Hello!"}]}]
  }'?key=$GOOGLE_API_KEY
bash 
curl https://api.deepseek.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $DEEPSEEK_API_KEY" \
  -d '{
    "model": "deepseek-chat",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'

Python SDK

python 
from openai import OpenAI

client = OpenAI(api_key="your-api-key")

response = client.chat.completions.create(
    model="gpt-4o",
    messages=[{"role": "user", "content": "Hello!"}]
)

print(response.choices[0].message.content)
python 
from anthropic import Anthropic

client = Anthropic(api_key="your-api-key")

response = client.messages.create(
    model="claude-3-5-sonnet-20240620",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello!"}]
)

print(response.content[0].text)
python 
import google.generativeai as genai

genai.configure(api_key="your-api-key")
model = genai.GenerativeModel("gemini-2.0-flash")

response = model.generate_content("Hello!")
print(response.text)
python 
from openai import OpenAI

client = OpenAI(
    api_key="your-api-key",
    base_url="https://api.deepseek.com/v1"
)

response = client.chat.completions.create(
    model="deepseek-chat",
    messages=[{"role": "user", "content": "Hello!"}]
)

print(response.choices[0].message.content)