Catalog Changes · 2026-10-14 18:04:42.124678

Anthropic: Claude Opus 4.8 · 2026-10-14 18:04:42.124678 UTC

OpenRouter

11 Changed Fields

Field / Array Position	Previous Value	Observed Value
Benchmarks · Design Arena[13] · Elo	1223	1220
Benchmarks · Design Arena[13] · Rank	40	41
Benchmarks · Design Arena[13] · Win Rate	51.7	51.6
Benchmarks · Design Arena[15] · Elo	1257	1256
Benchmarks · Design Arena[15] · Rank	37	38
Benchmarks · Design Arena[16] · Elo	1240	1241
Benchmarks · Design Arena[17] · Elo	1268	1266
Benchmarks · Design Arena[17] · Rank	26	29
Benchmarks · Design Arena[18] · Elo	1192	1193
Benchmarks · Design Arena[18] · Rank	29	28
Benchmarks · Design Arena[20] · Rank	35	36

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Anthropic: Claude Opus 4.8

anthropic/claude-opus-4.8

OpenRouter Catalog Changes

Last Observed: 2026-10-15 00:04:06.941590 UTC

Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token...

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Architecture And Modalities · 3

Architecture · Instruct Type API Details /architecture/instruct_type Explicit Null	Explicit Null
Architecture · Modality API Details /architecture/modality text+image+file->text	text+image+file->text
Architecture · Tokenizer API Details /architecture/tokenizer Claude	Claude

Benchmarks · 3

Benchmarks · Artificial Analysis · Agentic Index API Details /benchmarks/artificial_analysis/agentic_index 41.9	41.9
Benchmarks · Artificial Analysis · Coding Index API Details /benchmarks/artificial_analysis/coding_index 74.3	74.3
Benchmarks · Artificial Analysis · Intelligence Index API Details /benchmarks/artificial_analysis/intelligence_index 41.8	41.8

Catalog Identity And Metadata · 11

Canonical Slug API Details /canonical_slug anthropic/claude-4.8-opus-20260528	anthropic/claude-4.8-opus-20260528
Context Tokens API Details /context_length 1000000	1,000,000
Created API Details /created 1779905091	2026-05-27 18:04:51 UTC
Description API Details /description Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token...	Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token...
Expiration Date API Details /expiration_date Explicit Null	Explicit Null
Hugging Face Id API Details /hugging_face_id Explicit Null	Explicit Null
Id API Details /id anthropic/claude-opus-4.8	anthropic/claude-opus-4.8
Knowledge Cutoff API Details /knowledge_cutoff Explicit Null	Explicit Null
Links · Details API Details /links/details /api/v1/models/anthropic/claude-4.8-opus-20260528/endpoints	/api/v1/models/anthropic/claude-4.8-opus-20260528/endpoints
Name API Details /name Anthropic: Claude Opus 4.8	Anthropic: Claude Opus 4.8
Supported Voices API Details /supported_voices Explicit Null	Explicit Null

Request Limits · 1

Per Request Limits API Details /per_request_limits Explicit Null	Explicit Null

Pricing · 6

Output Price · USD/Token API Details /pricing/completion 0.000025	0.000025
Pricing · Input Cache Read API Details /pricing/input_cache_read 0.0000005	0.0000005
Pricing · Input Cache Write API Details /pricing/input_cache_write 0.00000625	0.00000625
Pricing · Input Cache Write 1h API Details /pricing/input_cache_write_1h 0.00001	0.00001
Input Price · USD/Token API Details /pricing/prompt 0.000005	0.000005
Pricing · Web Search API Details /pricing/web_search 0.01	0.01

Reasoning · 3

Reasoning · Default Effort API Details /reasoning/default_effort high	high
Reasoning · Default Enabled API Details /reasoning/default_enabled False	False
Reasoning · Mandatory API Details /reasoning/mandatory False	False

Provider Limits · 3

Top Provider · Context Length API Details /top_provider/context_length 1000000	1,000,000
Top Provider · Is Moderated API Details /top_provider/is_moderated True	True
Top Provider · Max Completion Tokens API Details /top_provider/max_completion_tokens 128000	128,000

API Structure And Container Types

Architecture API Details /architecture Object · See Fields	Object · See Fields
Architecture · Input Modalities API Details /architecture/input_modalities Array · See Items	Array · See Items
Architecture · Output Modalities API Details /architecture/output_modalities Array · See Items	Array · See Items
Benchmarks API Details /benchmarks Object · See Fields	Object · See Fields
Benchmarks · Artificial Analysis API Details /benchmarks/artificial_analysis Object · See Fields	Object · See Fields
Benchmarks · Design Arena API Details /benchmarks/design_arena Array · See Items	Array · See Items
Default Parameters API Details /default_parameters Object · See Fields	Object · See Fields
Links API Details /links Object · See Fields	Object · See Fields
Pricing API Details /pricing Object · See Fields	Object · See Fields
Reasoning API Details /reasoning Object · See Fields	Object · See Fields
Reasoning · Supported Efforts API Details /reasoning/supported_efforts Array · See Items	Array · See Items
Supported Parameters API Details /supported_parameters Array · See Items	Array · See Items
Top Provider API Details /top_provider Object · See Fields	Object · See Fields

Architecture · Input Modalities

3 items · source order preserved

text
image
file

API Details

Item	/architecture/input_modalities/*
1	text
2	image
3	file

Architecture · Output Modalities

1 items · source order preserved

text

API Details

Item	/architecture/output_modalities/*
1	text

Supported Parameters

11 items · source order preserved

include_reasoning
max_completion_tokens
max_tokens
reasoning
reasoning_effort
response_format
stop
structured_outputs
tool_choice
tools
verbosity

API Details

Item	/supported_parameters/*
1	include_reasoning
2	max_completion_tokens
3	max_tokens
4	reasoning
5	reasoning_effort
6	response_format
7	stop
8	structured_outputs
9	tool_choice
10	tools
11	verbosity

Benchmarks · Design Arena

21 items · source order preserved

Item	Arena	Category	Elo	Rank	Win Rate
1	agents	agenticgamedev	1238	4	55.9
2	agents	agentichtmlslides	1227	3	55.6
3	agents	agenticslides	1294	1	64.8
4	agents	agenticslides(html)	1230	3	56
5	agents	agenticslides(python-pptx)	1310	1	68.9
6	agents	androidnative	1247	8	56.4
7	agents	fullstack	1249	8	55.3
8	agents	godotgamedev	1231	10	55.8
9	agents	htmlslides	1220	4	58
10	agents	mobileapps	1220	9	55.5
11	agents	pptxslides	1306	1	67.9
12	agents	python-pptxslides	1298	2	65.9
13	agents	webapps	1225	12	51.4
14	models	3d	1220	41	51.6
15	models	asciiart	1280	7	62.3
16	models	codecategories	1256	38	52.5
17	models	dataviz	1241	36	52.8
18	models	gamedev	1266	29	53
19	models	svg	1193	28	51.4
20	models	uicomponent	1260	37	53.2
21	models	website	1260	36	53

API Details

Item	/benchmarks/design_arena/*/arena	/benchmarks/design_arena/*/category	/benchmarks/design_arena/*/elo	/benchmarks/design_arena/*/rank	/benchmarks/design_arena/*/win_rate
1	agents	agenticgamedev	1238	4	55.9
2	agents	agentichtmlslides	1227	3	55.6
3	agents	agenticslides	1294	1	64.8
4	agents	agenticslides(html)	1230	3	56
5	agents	agenticslides(python-pptx)	1310	1	68.9
6	agents	androidnative	1247	8	56.4
7	agents	fullstack	1249	8	55.3
8	agents	godotgamedev	1231	10	55.8
9	agents	htmlslides	1220	4	58
10	agents	mobileapps	1220	9	55.5
11	agents	pptxslides	1306	1	67.9
12	agents	python-pptxslides	1298	2	65.9
13	agents	webapps	1225	12	51.4
14	models	3d	1220	41	51.6
15	models	asciiart	1280	7	62.3
16	models	codecategories	1256	38	52.5
17	models	dataviz	1241	36	52.8
18	models	gamedev	1266	29	53
19	models	svg	1193	28	51.4
20	models	uicomponent	1260	37	53.2
21	models	website	1260	36	53

Reasoning · Supported Efforts

5 items · source order preserved

max
xhigh
high
medium
low

API Details

Item	/reasoning/supported_efforts/*
1	max
2	xhigh
3	high
4	medium
5	low