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Language models

Anthropic: Claude Sonnet 5

Anthropic · anthropic/claude-sonnet-5

Runs in the cloud, on our API — not on your own machine.

tools reasoning optional

Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...

Install on 00

Get the 00 app

Free · macOS

Your agents, your models, your machine — this model installs with one click once the app is on board.

Download free →

What it costs

Input / 1M
$4
Output / 1M
$20
1M in + 1M out
$24
Cache read / 1M
$0.4
Cache write / 1M
$5
Web search / call
$0.02

Final AI-token prices, per million tokens. Bring your own provider key in the app to pay provider rates directly.

What it can do

Takes
text, images and files
Returns
text
Tools
yes
Reasoning
optional
Context window
1M tokens
Max output
128K tokens
Open weights
no

Effort: max, xhigh, high, medium and low — high by default. More effort means more thinking tokens, billed at the output rate.

Benchmarks

BenchmarkWhat it measuresScore
Epoch Capabilities Indexone score summarising the benchmarks below — an index, not a percentage156.3
GPQA Diamondgraduate-level science questions90.5% ± 1.8
AIMEcompetition mathematics94.7% ± 2.3
SimpleQAshort factual questions — the test for making things up33.7% ± 1.5

Scores by Epoch AI, CC BY 4.0. The ± is the margin of error: models inside each other's margins are tied, not ranked. Epoch's notes on this row: source “epoch”, accessibility “API access”.

Dates

Released
2026-06-30
Knowledge cutoff
—
Retires
—

Using it

In the 00 app — pick it per agent, and per tier, then build your own agents on it. Get 00.

As a drop-in API — the same model at an OpenAI-compatible endpoint. Two settings:

  1. Create a workspace API key in the Overblast console — usage bills that workspace's AI tokens, at the prices on this page.
  2. Point your base URL at https://brain.deployd.network/ai/v1. Chat completions with streaming, embeddings, /images, /audio/transcriptions and /videos.
curl https://brain.deployd.network/ai/v1/chat/completions \
  -H "Authorization: Bearer ob_live_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-sonnet-5",
    "messages": [{ "role": "user", "content": "Hello" }]
  }'

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