AiCostCompare

Compare models

Pick up to 4 models for a side-by-side spec sheet. Hover any dotted metric name for what the test measures. Best value in each row is highlighted.

Claude Sonnet 5GPT-5
Claude Sonnet 5

Anthropic

GPT-5

OpenAI

Pricing
Input $/1M$2.00$1.25
Output $/1M$10.00$10.00
Blended $/1M (3:1)$4.00$3.44
Cache read $/1M$0.20$0.125
Cache write $/1M$2.50
Quality indices
Intelligence Index53.434.7
Coding Index71.537.8
Math Index94.3
Agentic Index46.725.7
Speed & latency
Output speed (tok/s)86109
Time to first token93.73s96.67s
Time to first answer token93.73s96.67s
Benchmarks (Artificial Analysis)
MMLU-Pro87.1%
GPQA Diamond91.1%85.4%
Humanity's Last Exam39.6%26.5%
LiveCodeBench84.6%
SciCode53.6%42.9%
MATH-50099.4%
AIME95.7%
AIME 202594.3%
IFBench73.1%
AA-LCR (Long Context Reasoning)70.7%75.6%
Terminal-Bench Hard32.6%
Terminal-Bench 2.180.5%35.2%
τ²-Bench (Telecom)84.8%
τ³-Bench Banking28.2%19.6%
Design Arena (Elo)
Website1,3141,212
Web apps1,305
Full-stack1,292
Android native1,255
UI components1,3171,224
Data viz1,2811,275
SVG1,2391,235
3D1,3211,115
Game dev1,3451,245
Agentic game dev1,241
Godot game dev1,257
HTML slides1,233
Python→PPTX slides1,252
Code categories1,3121,202
ASCII art1,2301,183
Specs
Context window1M400K
Max output tokens128K128K
Input modalitiestext, image, filetext, image, file
TokenizerClaudeGPT