AI Models with 1M+ Context

Q: Which AI models have the largest context window?

Several models now support 1M+ token contexts, including models from Google (Gemini), Anthropic (Claude), and others. The leaderboard above lists them all.

Q: Does context window size affect quality?

Most models maintain strong performance within their stated context window, though some show degradation at the extremes. Benchmark scores above reflect overall model quality, not context-specific performance.

AI models with 1 million+ token context windows ranked by score. Compare Gemini, Claude, and other long-context models.

Models

Providers

Open Source

$1.25

Median $/1M in

Top 3

Claude Mythos Preview

🇺🇸 Anthropic

1.0MN/A/M in

81.814 benchmarks

Gemini 2.5 Pro Preview 05-06

Full Rankings

#▲	Model	Avg	aider edit	aider poly?	ANLI?	APEX-Agents?	ARC AI2?	ARC-AGI?	ARC-AGI-2?	aa agentic?	aa coding ?	aa quality	seal audio	seal audio	seal audio	Balrog?	BBH?	hf bbh	C-Eval	CadEval?	charxiv re?	charxiv re?	arena elo	arena elo	chess puzz?	CMMLU	CSQA2	Cybench?	deepresear?	EnigmaEval	fiction li?	Fortress	frontierma?	frontierma?	GeoBench?	GPQA	GPQA diamond?	graphwalks?	GSM8K?	GSO-Bench?	HellaSwag?	HELM · GPQA	helm ifeva	helm mmlu	helm omni	helm wildb	HLE?	hle tools	seal human	seal human	IFEval	jp jcommon	JHumanEval	JMMLU	JNLI	JSQuAD	LAMBADA?	lech mazur?	livebench	livebench	livebench	livebench	livebench	livebench	livebench	livebench	jp overall	MASK	MATH level 5?	MATH Level 5	MCP Atlas	MMLU?	MMLU-PRO	MMMLU	mmmlu ar	mmmlu bn	mmmlu zh	mmmlu fr	mmmlu de	mmmlu hi	mmmlu id	mmmlu it	mmmlu ja	mmmlu ko	mmmlu pt	mmmlu es	mmmlu sw	mmmlu yo	seal multi	MultiNRC	MUSR	OpenBookQA?	oc aime202	oc gpqa di	oc hle	oc ifeval	oc livecod	oc mmlu pr	OSWorld?	otis mock ?	PIQA?	posttrainb	seal pro r	seal pro r	seal prope	seal remot	ScienceQA?	SciPredict	SimpleBench?	simpleqa v?	seal swe a	seal swe a	swe bench	swe bench	swe bench	seal swe b	seal swe b	swe bench ?	swe bench ?	terminal b?	the agent ?	TriviaQA?	TutorBench	USAMO	VideoMME?	VISTA	seal visua	VPCT?	WeirdML?	Winogrande?	$/1M in	Context	Released
1	Claude Mythos Preview🇺🇸 Anthropic	99.8	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	86.1	93.2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	94.5	80.0	-	-	-	-	-	-	-	-	56.8	64.7	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	92.7	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	79.6	-	-	-	-	-	-	-	-	-	-	-	-	-	87.3	59.0	77.8	-	-	93.9	-	82.0	-	-	-	97.6	-	-	-	-	-	-	N/A	1.0M	Apr 261mo ago
2	GPT-5.4 Pro🇺🇸 OpenAI	93.0	-	-	-	-	-	94.5	83.3	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	58.6	-	-	-	-	-	-	-	50.0	37.5	-	-	92.8	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	68.9	47.8	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	$30.00	1.1M	Mar 262mo ago
3	Gemini 3.1 Pro Preview🇺🇸 Google DeepMind	90.0	-	-	-	33.5	-	98.0	77.1	59.1	55.5	57.2	-	-	-	-	-	-	-	-	-	-	1455.7	1492.6	55.0	-	-	-	-	19.8	-	-	36.9	16.7	-	-	92.1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	71.4	64.7	-	-	-	-	-	-	-	-	-	95.6	-	21.6	-	-	-	-	-	-	75.5	77.3	-	-	-	-	-	-	-	75.6	-	78.4	-	-	-	-	-	-	29.0	-	72.1	-	$2.00	1.0M	Feb 262mo ago
4	Qwen3.6 Plus🇨🇳 Alibaba QwenOpen	88.7	-	-	-	-	-	-	-	61.7	42.9	50.0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	55.0	78.2	69.9	58.3	75.0	83.7	70.8	75.8	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	$0.33	1.0M	Apr 261mo ago
5	GPT-5.4🇺🇸 OpenAI	83.4	-	-	-	35.9	-	93.7	74.0	69.4	57.3	57.2	-	-	-	-	-	-	-	-	-	-	-	1465.8	44.0	-	-	-	-	-	-	-	47.6	27.1	-	-	91.1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	95.3	-	20.2	-	-	-	-	-	-	-	44.8	-	-	-	-	-	-	-	76.9	-	-	-	-	-	-	-	-	-	-	57.4	-	$2.50	1.1M	Mar 262mo ago
6	Claude Opus 4.6 (Fast)🇺🇸 Anthropic	83.3	-	-	-	-	-	-	-	67.6	48.1	53.0	-	-	-	-	-	-	-	-	-	-	1546.2	1502.8	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	96.3	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	53.3	52.3	-	4.2	-	-	-	-	33.3	36.7	-	-	-	-	-	-	-	-	-	-	-	-	-	-	27.5	-	-	-	$30.00	1.0M	Apr 261mo ago
7	Claude Opus 4.6🇺🇸 Anthropic	81.0	-	-	-	31.7	-	94.0	69.2	-	-	-	-	-	-	-	-	-	-	-	-	-	1542.9	1496.6	17.0	-	-	93.0	-	-	-	-	40.7	22.9	-	-	87.4	-	-	33.3	-	-	-	-	-	-	31.1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	94.4	-	23.2	-	-	-	-	-	-	61.1	46.5	-	-	-	-	-	-	-	78.7	-	74.7	-	-	-	-	-	-	-	-	77.9	-	$5.00	1.0M	Feb 263mo ago
8	Gemini 2.5 Pro Preview 06-05🇺🇸 Google DeepMind	73.5	-	83.1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	10.1	-	-	-	-	-	-	55.6	-	-	54.6	-	-	-	-	$1.25	1.0M	Jun 2511mo ago
9	Gemini 2.5 Pro🇺🇸 Google DeepMind	67.2	-	83.1	-	-	-	41.0	4.9	32.7	31.9	34.6	46.9	-	46.9	43.3	-	-	-	64.0	-	-	1202.0	1448.2	20.0	-	-	-	49.7	-	91.7	-	14.1	4.2	81.0	-	80.4	-	-	3.9	-	74.9	84.0	86.3	41.6	85.7	17.7	-	-	-	-	-	-	-	-	-	-	86.0	-	-	-	-	-	-	-	-	-	-	95.6	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	88.7	84.7	21.1	90.0	71.3	85.8	-	84.7	-	-	-	-	-	-	-	-	54.9	56.0	-	-	-	-	-	-	-	57.6	-	32.6	30.3	-	-	-	-	-	-	19.6	54.0	-	$1.25	1.0M	Jun 2511mo ago
10	MiMo-V2-Pro🇨🇳 xiaomi	62.9	-	-	-	-	-	-	-	62.8	41.4	49.2	-	-	-	-	-	-	-	-	-	-	1433.4	1445.0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	30.0	68.8	49.2	43.2	69.1	77.0	58.1	69.7	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	$1.00	1.0M	Mar 261mo ago
11	Gemini 3 Flash Preview🇺🇸 Google DeepMind	59.1	-	-	-	24.0	-	21.5	33.6	49.7	42.6	46.4	-	-	-	48.1	-	-	-	-	-	-	1436.4	1473.9	38.0	-	-	-	-	-	-	-	35.6	4.2	88.0	-	77.6	-	-	9.8	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	57.4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	92.8	-	-	-	-	-	-	-	22.2	53.3	67.4	-	-	-	-	-	-	-	75.4	-	64.3	-	-	-	-	-	-	-	58.9	61.6	-	$0.50	1.0M	Dec 254mo ago
12	Palmyra X5🇺🇸 writer	57.0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	66.1	82.3	80.4	41.5	78.0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	$0.60	1.0M	Jan 263mo ago
13	Claude Sonnet 4.6🇺🇸 Anthropic	52.6	-	-	-	-	-	86.5	60.4	63.0	50.9	51.7	-	-	-	-	-	-	-	-	-	-	1521.0	1462.2	13.0	-	-	-	-	-	-	-	32.4	8.3	-	-	83.2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	85.8	-	16.4	-	-	-	-	-	-	-	29.0	31.2	31.8	-	-	-	-	-	75.2	-	-	-	-	-	-	-	-	-	-	66.1	-	$3.00	1.0M	Feb 262mo ago
14	Grok 4 Fast🇺🇸 xAI	51.6	-	-	-	-	-	48.5	5.3	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	30.0	-	-	94.4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	81.1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	42.9	-	$0.20	2.0M	Sep 257mo ago
15	Claude Sonnet 4.5🇺🇸 Anthropic	50.7	-	-	-	-	-	63.7	13.6	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	12.0	-	-	60.0	52.6	-	-	-	15.2	4.2	-	-	76.4	-	-	14.7	-	-	-	-	-	-	9.4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	97.7	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	62.9	77.8	-	9.9	-	-	-	-	-	-	45.2	23.6	-	-	-	-	-	-	-	71.3	70.6	46.5	-	-	-	-	-	-	-	9.7	47.7	-	$3.00	1.0M	Sep 257mo ago
16	Gemini 2.0 Flash Lite🇺🇸 Google DeepMind	45.3	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	50.0	82.4	72.0	37.4	79.0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	$0.07	1.0M	Feb 251y ago
17	Gemini 2.0 Flash🇺🇸 Google DeepMind	44.7	-	38.2	-	-	-	-	1.3	-	-	-	-	-	-	-	-	-	-	30.0	-	-	-	1360.0	-	-	-	-	-	-	61.1	-	1.7	-	77.0	-	52.2	-	-	-	-	55.6	84.1	73.7	45.9	80.0	-	-	-	-	-	-	-	-	-	-	-	71.5	-	-	-	-	-	-	-	-	-	-	82.2	-	-	72.9	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	31.0	-	-	-	-	-	-	-	-	17.3	-	-	-	-	-	-	-	-	-	-	-	11.4	-	-	-	-	-	-	-	25.8	-	$0.10	1.0M	Feb 251y ago
18	Claude Sonnet 4🇺🇸 Anthropic	43.7	-	61.3	-	-	-	40.0	5.9	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	35.0	47.8	-	46.9	-	4.1	0.1	37.0	-	72.3	-	-	4.9	-	-	-	-	-	-	3.1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	95.3	84.4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	68.7	74.6	8.7	88.3	47.5	83.0	43.9	71.1	-	-	-	-	-	-	-	-	34.6	-	-	-	-	-	-	-	-	-	64.9	-	33.1	-	-	-	-	-	-	1.0	46.1	-	$3.00	1.0M	May 2511mo ago
19	GPT-4.1 Mini🇺🇸 OpenAI	43.1	-	32.4	-	-	-	3.5	0.1	-	-	-	-	-	-	-	-	-	-	16.0	-	-	-	-	-	-	-	-	-	-	44.4	-	4.5	-	-	-	54.5	-	-	-	-	61.4	90.4	78.3	49.1	83.8	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	87.3	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	44.7	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	23.9	-	-	-	-	-	-	-	-	-	37.6	-	$0.40	1.0M	Apr 251y ago
20	GPT-4.1🇺🇸 OpenAI	41.2	-	52.4	-	-	-	5.5	0.4	-	-	-	-	-	-	-	-	-	-	42.0	-	-	-	-	-	-	-	-	29.3	-	63.9	-	5.5	0.1	72.0	-	55.9	-	-	-	-	65.9	83.8	81.1	47.1	85.4	0.6	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	83.0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	38.3	-	-	-	-	-	-	-	-	12.4	-	-	-	-	-	-	-	-	48.5	39.6	-	-	-	-	-	-	-	-	-	39.0	-	$2.00	1.0M	Apr 251y ago
21	Gemini 2.5 Flash🇺🇸 Google DeepMind	38.1	-	47.1	-	-	-	32.3	2.5	-	-	-	40.0	-	40.0	33.5	-	-	-	-	-	-	-	1411.0	-	-	-	-	29.2	-	47.2	-	4.8	4.2	73.0	-	-	-	-	-	-	39.0	89.8	63.9	38.4	81.7	7.7	-	-	-	-	-	-	-	-	-	-	76.5	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	73.0	-	-	-	-	-	-	-	-	29.4	-	-	-	-	-	-	-	-	-	-	17.1	41.1	-	-	-	-	-	-	7.0	41.0	-	$0.30	1.0M	Jun 2511mo ago
22	Gemini 2.5 Flash Lite🇺🇸 Google DeepMind	33.2	-	-	-	-	-	-	-	11.7	18.1	21.6	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	30.9	81.0	53.7	48.0	81.8	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	$0.10	1.0M	Jul 259mo ago
23	GPT-4.1 Nano🇺🇸 OpenAI	25.8	-	8.9	-	-	-	0.1	0.1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	25.0	-	1.0	-	-	-	31.9	-	-	-	-	50.7	84.3	55.0	36.7	81.1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	70.0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	28.8	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	19.0	-	$0.10	1.0M	Apr 251y ago
24	Llama 4 Maverick🇺🇸 MetaOpen	22.0	-	15.6	-	-	-	4.4	0.1	7.2	15.6	18.4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	46.2	-	0.7	-	52.0	-	56.0	-	-	-	-	-	-	-	-	-	0.9	-	-	-	-	-	-	-	-	-	-	63.7	-	-	-	-	-	-	-	-	-	-	73.0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	20.5	-	-	-	-	-	-	-	-	13.2	-	-	-	-	-	-	-	-	-	21.0	-	-	-	-	-	-	-	-	-	24.5	-	$0.15	1.0M	Apr 251y ago

90+ Gold 80-89 70-79 60-69 <60Scores in % unless noted. Avg = unweighted mean across tested benchmarks.

About this category

All AI models with context windows of 1 million tokens or more, ranked by benchmark score. Long-context models can process entire codebases, books, or document collections in a single prompt.

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Frequently asked questions

Which AI models have the largest context window?

Several models now support 1M+ token contexts, including models from Google (Gemini), Anthropic (Claude), and others. The leaderboard above lists them all.

Does context window size affect quality?

Most models maintain strong performance within their stated context window, though some show degradation at the extremes. Benchmark scores above reflect overall model quality, not context-specific performance.

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