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Claude Sonnet 4.5

Claude Sonnet 4.5 is the newest model in the Sonnet series, offering improvements and updates over Sonnet 4.

text + image + file → text · made by Anthropic

$3→$15per Mtok in / out
Anthropic · 15 sellers

Sold by 37 ways

SellerLaneRate
AWS Bedrock cloudbatch$1.5per Mtok in$7.5per Mtok outraw.githubusercontent.com · read 2026-10-31
AWS Bedrock 0 ways$1.5per Mtok in$7.5per Mtok out
AWS Bedrock cloudnot on the seller's list todaybatch cross-region$1.5per Mtok in$7.5per Mtok outaws.amazon.com · read 2026-08-24
Anthropic 0 ways$1.5per Mtok in$7.5per Mtok out
Anthropic apinot on the seller's list todaybatch$1.5per Mtok in$7.5per Mtok outplatform.claude.com · read 2026-08-24
Google Vertex AI 0 ways$1.5per Mtok in$7.5per Mtok out$0.15per Mtok cached$1.88per Mtok cache write
Google Vertex AI cloudnot on the seller's list todaybatch$1.5per Mtok in$7.5per Mtok out$0.15per Mtok cached$1.88per Mtok cache writecloud.google.com · read 2026-08-24
AWS Bedrock 0 ways$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache write
AWS Bedrock cloudnot on the seller's list todaycross-region$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache writeaws.amazon.com · read 2026-08-24
Anthropic apistandard$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache writedocs.claude.com · read 2026-10-31
Databricks cloudstandard$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache writemodels.dev · read 2026-10-31
DigitalOcean cloudstandard$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache writemodels.dev · read 2026-10-31
Google Vertex AI cloudstandard$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache writemodels.dev · read 2026-10-31
Microsoft Azure AI cloudstandard$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache writemodels.dev · read 2026-10-31
Snowflake Cortex cloudstandard$3per Mtok in$15per Mtok out$0.3per Mtok cachedraw.githubusercontent.com · read 2026-10-31
AWS Bedrock cloudstandard$3.3per Mtok in$16.5per Mtok out$0.33per Mtok cached$4.12per Mtok cache writemodels.dev · read 2026-10-31
AWS Bedrock cloudlong-context$7.2per Mtok in$27per Mtok out$0.72per Mtok cachedraw.githubusercontent.com · read 2026-10-31
Nous Research 2 ways$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache write
Nous Research aggregatorbatch$1.5per Mtok in$7.5per Mtok out$0.15per Mtok cached$1.88per Mtok cache writeinference-api.nousresearch.com · read 2026-09-12
Nous Research aggregatorstandard$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache writeinference-api.nousresearch.com · read 2026-09-12
OpenRouter 4 ways$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache write
OpenRouter aggregatorbatch$1.5per Mtok in$7.5per Mtok out$0.15per Mtok cached$1.88per Mtok cache writeopenrouter.ai · read 2026-08-24
OpenRouter aggregatorstandard$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache writeopenrouter.ai · read 2026-08-24
OpenRouter aggregatoramazon-bedrock/eu-west-1$3.3per Mtok in$16.5per Mtok out$0.33per Mtok cached$4.12per Mtok cache writeopenrouter.ai · read 2026-08-25
OpenRouter aggregatorgoogle-vertex/us-east5$3.3per Mtok in$16.5per Mtok out$0.33per Mtok cached$4.12per Mtok cache writeopenrouter.ai · read 2026-08-25
Requesty 3 ways$2.97per Mtok in$14.85per Mtok out$0.27per Mtok cached
Requesty aggregatornot on the seller's list todaybedrock eu-central-1$2.97per Mtok in$14.85per Mtok out$0.27per Mtok cachedrouter.requesty.ai · read 2026-08-25
Requesty aggregatornot on the seller's list todaybedrock eu-north-1$2.97per Mtok in$14.85per Mtok out$0.27per Mtok cachedrouter.requesty.ai · read 2026-08-25
Requesty aggregatornot on the seller's list todaybedrock eu-west-1$2.97per Mtok in$14.85per Mtok out$0.27per Mtok cachedrouter.requesty.ai · read 2026-08-25
Requesty aggregatornot on the seller's list todaybedrock eu-west-3$2.97per Mtok in$14.85per Mtok out$0.27per Mtok cachedrouter.requesty.ai · read 2026-08-25
Requesty aggregatornot on the seller's list todaybedrock us-east-1$2.97per Mtok in$14.85per Mtok out$0.27per Mtok cachedrouter.requesty.ai · read 2026-08-25
Requesty aggregatornot on the seller's list todaybedrock us-east-2$2.97per Mtok in$14.85per Mtok out$0.27per Mtok cachedrouter.requesty.ai · read 2026-08-25
Requesty aggregatornot on the seller's list todaybedrock us-west-2$2.97per Mtok in$14.85per Mtok out$0.27per Mtok cachedrouter.requesty.ai · read 2026-08-25
Requesty aggregatornot on the seller's list todayvertex europe-west1$2.97per Mtok in$14.85per Mtok out$0.3per Mtok cachedrouter.requesty.ai · read 2026-08-25
Requesty aggregatornot on the seller's list todayvertex us-east5$2.97per Mtok in$14.85per Mtok out$0.3per Mtok cachedrouter.requesty.ai · read 2026-08-25
Requesty aggregatoranthropic$3per Mtok in$15per Mtok out$0.3per Mtok cachedrouter.requesty.ai · read 2026-08-28
Requesty aggregatorbedrock$3per Mtok in$15per Mtok out$0.3per Mtok cachedrouter.requesty.ai · read 2026-10-10
Requesty aggregatorvertex$3per Mtok in$15per Mtok out$0.3per Mtok cachedrouter.requesty.ai · read 2026-10-10
AtlasCloud aggregatorstandard$3per Mtok in$15per Mtok out$0.3per Mtok cachedapi.atlascloud.ai · read 2026-09-20
ElectronHub aggregatorstandard$3per Mtok in$15per Mtok outapi.electronhub.ai · read 2026-10-31
GitHub Copilot 0 ways$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache write
GitHub Copilot aggregatornot on the seller's list todaystandard$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache writemodels.dev · read 2026-09-04
RedPill aggregatorstandard$3per Mtok in$15per Mtok outapi.redpill.ai · read 2026-09-20
Venice AI aggregatorstandard$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache writemodels.dev · read 2026-10-29
Vercel AI Gateway aggregatorstandard$3per Mtok in$15per Mtok out$0.3per Mtok cached$3.75per Mtok cache writeai-gateway.vercel.sh · read 2026-08-25

Measured 58 standings

PlaceBoardMetricScore
3rdof 22Cybench — Epoch AIUnguided % Solved0.6
4thof 11Gdpval — Epoch AIWin Rate (%)0.425
4thof 20Os world — Epoch AIScore62.9
6thof 108Math level 5 — Epoch AImean_score97.734
7thof 41Deepresearchbench — Epoch AIAverage score0.526
10thof 18Algotune — Epoch AIScore1.52
13thof 49Metr time horizons — Epoch AIaverage_score0.674
15thof 18Rli — Epoch AIScore2.08
20thof 42Gso — Epoch AIScore OPT@10.147
20thof 38Vpct — Epoch AICorrect0.398
23rdof 46Enigma eval — Epoch AIAccuracy5.997
24thof 34LMArena · SearchScore (Elo)1158
25thof 35Swe bench verified — Epoch AImean_score71.281
28thof 28Ebr bench — Epoch AImean_score2.381
30thof 56Humanity's Last Exam (Epoch AI replication)Accuracy13.72
37thof 92Forecastbench — Epoch AIOverall score64.1
41stof 93Design Arena · asciiart (models)Elo1202
41stof 72Frontiermath tier 4 — Epoch AImean_score4.167
43rdof 102Simplebench — Epoch AIScore (AVG@5)0.543
45thof 71Vending bench 2 — Epoch AIScore3838.74
49thof 101FrontierMath (Tiers 1-3)mean_score15.225
50thof 61Design Arena · fullstack (agents)Elo1050
50thof 68Design Arena · mobileapps (agents)Elo1137
54thof 84Proofbench — Epoch AIAccuracy19
61stof 68Design Arena · webapps (agents)Elo1048
64thof 414LMArena · TextScore (Elo) (high)1456
70thof 93Simpleqa verified — Epoch AImean_score30.7
75thof 78Frontiermath tier 4 v2 — Epoch AImean_score2.439
76thof 131Artificial Analysis · Agentic IndexIndex15.8
79thof 202Terminalbench — Epoch AIAccuracy mean0.465
79thof 173Weirdml — Epoch AIAccuracy47.71
80thof 132Ale bench — Epoch AIPerformance796.15
80thof 163Artificial Analysis · Coding IndexIndex52.1
81stof 111Vectara Hallucination LeaderboardHallucination Rate12
84thof 114Design Arena · svg (models)Elo1113
84thof 142Mystery game puzzles — Epoch AImean_score17
87thof 150Design Arena · 3d (models)Elo1155
87thof 122Frontiermath tiers 1 3 v2 — Epoch AImean_score23.86
90thof 163Design Arena · codecategories (models)Elo1181
92ndof 135Webdev arena — Epoch AIArena Score1391
94thof 141LMArena · WebDevScore (Elo) (high)1394
95thof 169Design Arena · website (models)Elo1188
96thof 162Design Arena · gamedev (models)Elo1166
96thof 157Design Arena · uicomponent (models)Elo1167
99thof 154Design Arena · dataviz (models)Elo1167
111thof 197Lmca — Epoch AIScore38.76
117thof 235Dtbench — Epoch AIAccuracy83.2
124thof 154Chess puzzles — Epoch AImean_score10
124thof 326GPQA Diamondmean_score82.323
129thof 306OTIS Mock AIME 2024-2025mean_score77.778
152ndof 235Scicode — Epoch AIScore45.718
166thof 290Arc agi 2 — Epoch AIScore13.61
172ndof 260Critpt — Epoch AIAccuracy1.143
175thof 309Arc agi — Epoch AIScore63.67
192ndof 282ARC-AGI-2 (Public Eval)Score (%)3.75
210thof 298ARC-AGI-2 (Semi-Private)Score (%)3.75
226thof 273ARC-AGI-1 (Public Eval)Score (%)35.38
245thof 298ARC-AGI-1 (Semi-Private)Score (%)25.5

About

Claude Sonnet 4.5 — a text model from Anthropic, sold by 15 companies from $3 in and $15 out per million tokens, placed 6th of 108 on Math level 5 — Epoch AI.

It takes text, images and files and returns text, with a context window of 1,000,000 tokens. It was published in September 2025, trained on material up to July 2025. Its sellers say it can reason step by step and call a tool. The catalogue files it under reasoning, code and agents. Fifteen companies sell it. The cheapest is $3 in and $15 out per million tokens at Anthropic. Beside the standard rate there are batch, separately routed and regional lanes. It has been measured on 58 boards, and stands best at 6th of 108 on Math level 5 — Epoch AI.

Every current figure

Maker
Anthropic
Register
model
Takes
text + image + file
Returns
text
Context
1,000,000 tokens
Longest answer
200,000 tokens
Published
September 2025
Knowledge to
July 2025
Licence
not read
Sellers
15
Price
$3 in and $15 out per million tokens — Anthropic
Boards
58
Best place
6th of 108 — Math level 5 — Epoch AI

Known as 28 names

Claude Sonnet 4.5 (2025-09-29)Claude Sonnet 4.5 Thinking (2025-09-29)Claude-Sonnet-4-5-20250929 (FC)Claude Sonnet 4.5 (59k thinking)Claude 4.5 Sonnetclaude-sonnet-4-5-searchClaude-4.5-Sonnet(Thinking)claude-sonnet-4-5-20250929claude-4-5-SonnetClaude 4.5 Sonnet highanthropic/claude-sonnet-4.5-20250929anthropic.claude-sonnet-4-5-20250929-v1:0anthropic/claude-sonnet-4.5anthropic/claude-sonnet-4.5:batchanthropic/claude-sonnet-4-5bedrock/claude-sonnet-4-5bedrock/claude-sonnet-4-5@eu-central-1bedrock/claude-sonnet-4-5@eu-north-1bedrock/claude-sonnet-4-5@eu-west-1bedrock/claude-sonnet-4-5@eu-west-3bedrock/claude-sonnet-4-5@us-east-1bedrock/claude-sonnet-4-5@us-east-2bedrock/claude-sonnet-4-5@us-west-2vertex/claude-sonnet-4-5vertex/claude-sonnet-4-5@europe-west1vertex/claude-sonnet-4-5@us-east5anthropic/claude-sonnet-4.5-batchAnthropic: Claude Sonnet 4.5 (batch)