LLM Comparison

GPT-5.5 vs MiMo-V2-Omni

Side-by-side specs, pricing & capabilities · Updated April 2026

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2/6 models

Same tier:

	GPT-5.5	MiMo-V2-Omni
Organization	OpenAI	Xiaomi
OpenTools Score	90 5.1
Family	GPT	MiMo
Status	Current	Current
Release Date	Apr 2026	Mar 2026
Context Window	1.1M tokens	262K tokens
Input Price	$5.00/M tokens	$0.40/M tokens
Output Price	$30.00/M tokens	$2.00/M tokens
Pricing Notes	Cached input: $0.50/M tokens. Long context (>272K tokens): 2x input, 1.5x output. Batch API: 50% discount. Priority: 2.5x standard.	Cache read: $0.0800/M tokens
Capabilities	textvisioncodetool-useextended-thinkingcomputer-useweb-search	textvisionaudiovideocode
Training Cutoff	December 2025	—
Max Output	128K tokens	66K tokens
API Identifier	`openai/gpt-5.5`	`xiaomi/mimo-v2-omni`
Benchmarks
MMLU	92.4openai	—
GPQA Diamond	93.6openai	—
ARC-AGI-2	85openai	—
Terminal-Bench 2.0	82.7openai	—
SWE-bench Pro	58.6openai	—
OSWorld-Verified	78.7openai	—
BrowseComp	84.4openai	—
MMMU-Pro	81.2openai	—
FrontierMath Tier 4	35.4openai	—
HLE (with tools)	52.2openai	—
GDPval	84.9openai	—
Toolathlon	55.6openai	—
CyberGym	81.8openai	—
MRCR v2 512K-1M	74openai	—
	View GPT-5.5	View MiMo-V2-Omni

Cost Calculator

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Input tokens / month

Output tokens / month

Model	Input	Output	Total / mo	vs Best
MiMo-V2-OmniCheapest	$0.40	$1.00	$1.40	—
GPT-5.5	$5.00	$15.00	$20.00	+1329%

OpenAI

GPT-5.5

GPT-5.5 is OpenAI's smartest and most intuitive model, built for agentic work like coding, research, and data analysis. It matches GPT-5.4 per-token latency while delivering higher intelligence with significantly fewer tokens. Supports a 1,050,000 token context window and five reasoning effort levels (none through xhigh).

Xiaomi

MiMo-V2-Omni

MiMo-V2-Omni is a multimodal llm from Xiaomi. Supports up to 262,144 token context window. Available from $0.40/M input tokens.