Model Comparison

Large (Feb '24)
vs. GPT-5.5 (xhigh)

Comparing 2 AI models · 11 benchmarks · Mistral, OpenAI

Recommended Pick

OpenAI logo GPT-5.5 (xhigh) 7 metric wins

Strongest on: Value, Throughput, Reasoning

Best Value

OpenAI logo

GPT-5.5 (xhigh)

100.0 value score

66.0 reasoning / $11.25/1M

Lowest Price

Mistral logo

Large (Feb '24)

$4.00/1M input price

Best Reasoning

OpenAI logo

GPT-5.5 (xhigh)

66.0 reasoning score

Blends available reasoning benchmarks

Best for Coding

OpenAI logo

GPT-5.5 (xhigh)

59.1 coding index

Composite Indices

Higher is better; speed and price are normalized

Standard Benchmarks

Only benchmarks with data are shown

Differences That Matter

Best value

GPT-5.5 (xhigh) has the strongest quality-to-price mix at 100.0 out of 100 value points.

Price gap

Large (Feb '24) is 1.3x cheaper on input tokens than GPT-5.5 (xhigh).

Reasoning gap

GPT-5.5 (xhigh) leads Large (Feb '24) by 45.8 points on reasoning.

Top-pick rationale

GPT-5.5 (xhigh) wins 7 measurable categories, including Value, Throughput, Reasoning, Intelligence.

Live compare

Response Face-Off

Run one prompt through the selected models and compare response quality with live speed and cost context.

Mistral logo

Large (Feb '24)

Mistral

Waiting

TTFT

Time

tok/s

Tokens

Cost

Waiting
OpenAI logo

GPT-5.5 (xhigh)

OpenAI

Waiting

TTFT

Time

tok/s

Tokens

Cost

Waiting

Which answer was more useful?

AI Chat

Chat with 80+ models

Inference API

EU-hosted inference

Full Comparison

Metric
Mistral logo Large (Feb '24)
Mistral
Top Pick
OpenAI logo GPT-5.5 (xhigh)
OpenAI
Pricing per 1M tokens
Input Cost $4.00/1M$5.00/1M
Output Cost $12.00/1M$30.00/1M
Blended (3:1) $6.00/1M$11.25/1M
Specifications
Organization MistralOpenAI
Release Date Feb 26, 2024Apr 23, 2026
Performance & Speed
Throughput 61.4 tok/s
TTFT 62483ms
Latency 62483ms
Composite Indices
Value Score 57.4100.0
Reasoning Score 20.266.0
Intelligence 9.960.2
Coding 59.1
Standard Benchmarks
GPQA 35.1%93.5%
MMLU Pro 51.5%
HLE 3.4%44.3%
LiveCodeBench 17.8%
MATH 500 52.7%
AIME (Original) 0.0%
SciCode 20.8%56.1%
LCR 74.3%
IFBench 75.9%
TAU-bench v2 93.9%
TerminalBench Hard 60.6%

Key Takeaways

Large (Feb '24) offers the best value at $4.00/1M, making it ideal for high-volume applications and cost-conscious projects.

GPT-5.5 (xhigh) has the strongest reasoning profile with a 66.0 reasoning score, combining the available reasoning-heavy benchmarks.

GPT-5.5 (xhigh) reaches a 59.1 coding index, making it the top choice for software development and code generation tasks.

All models support context windows of ∞+ tokens, suitable for processing lengthy documents and maintaining extended conversations.

When to Choose Each Model

Mistral logo

Large (Feb '24)

  • Cost-sensitive applications
  • High-volume processing
OpenAI logo

GPT-5.5 (xhigh)

  • Complex reasoning tasks
  • Research & analysis
  • Code generation
  • Software development