Compare models

Pick up to 4models. Specs render side-by-side. Share the URL — it's stateless.

Comparing agents instead? Switch to agent compare →

Selected

DeepSeek-V4-Flash×

GPT-5.5×

Claude 4.8 Opus×

	DeepSeek-V4-Flash DeepSeek	GPT-5.5 OpenAI	Claude 4.8 Opus Anthropic	o3 OpenAI
Vendor	DeepSeek	OpenAI	Anthropic	OpenAI
Family	DeepSeek	GPT	Claude	o-series
Release date	2026-04-22	2026-04-23	2026-05-28	2025-04-16
Context window	1,000,000 tokens	400,000 tokens	1,000,000 tokens	200,000 tokens
Parameters	284B (13B active)	—	—	—
Modality	text	text, vision, audio	text, vision	text, vision
License	MIT	proprietary	proprietary	proprietary
Source	open weights	proprietary	proprietary	proprietary
Description	Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE.	OpenAI's smartest and most intuitive model — successor to GPT-5, with major coding, research, and document workflow gains. GPT-5.5 Pro variant also available for heavier reasoning.	Anthropic's flagship hybrid-reasoning model — Opus 4.8 pushes coding and AI-agent workflows further (agentic coding 69.2% vs 64.3% on 4.7; multidisciplinary reasoning 57.9% vs 54.7%). 1M-token context, $5/$25 per MTok pricing held flat from Opus 4.7. Introduces Dynamic Workflows for Claude Code (research preview). GA on Anthropic API (`claude-opus-4-8`), AWS Bedrock, Google Vertex, Microsoft Foundry, and GitHub Copilot.	Reasoning-focused model in the o-series.
Links	weights →	vendor →	vendor →
Benchmarks
MMLU-Pro	—	87.6%	—	—
GPQA-D	—	89.4%	—	87.7%
HumanEval	—	96.8%	—	—
Aider	—	89.7%	—	—
AIME-25	—	94.2%	—	88.9%
LiveCB	—	78.9%	—	—
MMMU	—	78.4%	—	—