Anthropic Claude 4.5 Sonnet

Replicate chat

Anthropic Claude 4.5 Sonnet is a Replicate chat model.Input is priced at $3.00/M tokens and output at $15.00/M tokens. Capabilities include function calling, vision, prompt caching. Route Anthropic Claude 4.5 Sonnet via Future AGI's Agent Command Center for unified observability, caching, and 15 routing strategies including cost-optimized fallback.

Pricing source: litellm Last verified: May 12, 2026 View source ↗
Cost calculator

Estimate Anthropic Claude 4.5 Sonnet spend

Pick a workload, fine-tune the sliders, and see the monthly bill.

~3K in / ~400 out · 5K req/day
3,000
0200,000
400
016,000
5,000
01,000,000
Per request
$0.0150
in $0.009000 · out $0.006000
Per day
$75.00
5,000 requests
Per month
$2,283
152,188 requests

Estimate uses $3.00/M input · $15.00/M output. Provider pricing changes. Production costs vary with retries, streaming overhead, and tool-call rounds.
Want this for free? Cache + route via Agent Command Center — first 100K requests and 100K cache hits free every month.

Pricing

Per-token rates, expressed in USD per 1M tokens. Verified May 12, 2026.

Input $3.00/M
Output $15.00/M

Limits

Context window
Max input
Max output
Modalities
vision, text

Capabilities

  • Function calling ✓ supported
  • Parallel tool calls ✓ supported
  • Vision input ✓ supported
  • Audio input — not advertised
  • Audio output — not advertised
  • PDF input — not advertised
  • Streaming ✓ supported
  • Structured output ✓ supported
  • Prompt caching ✓ supported
  • Reasoning — not advertised

Where it's strong

  • +pricing — cheaper than 88% of priced chat models on Future AGI
  • +parallel tool calls — only 21% of chat models on Future AGI advertise this
  • +prompt caching — only 23% of chat models on Future AGI advertise this

Watch out for

  • No major caveats flagged from public spec.

Benchmarks pending

We haven't logged public benchmark scores for Anthropic Claude 4.5 Sonnet yet. Have one to contribute? Submit a source — citations help us prioritise.

Try it

Call Anthropic Claude 4.5 Sonnet via Agent Command Center

One OpenAI-compatible endpoint. Routing, fallback, semantic caching, guardrails, and cost tracking come along for the ride. First 100K requests + 100K cache hits free every month.

SDK
Native Future AGI client (agentcc / @agentcc/client). Per-call metadata — provider, cost, latency, cache hit, request id — is returned on x-agentcc-* response headers, so any HTTP client can read it.
# Anthropic Claude 4.5 Sonnet via the Agent Command Center Python SDK
# pip install agentcc
import os
from agentcc import AgentCC

client = AgentCC(
    api_key=os.environ["AGENTCC_API_KEY"],   # from app.futureagi.com → Settings → API Keys
    base_url="https://gateway.futureagi.com/v1",
)

resp = client.chat.completions.create(
    model="replicate/anthropic-claude-4-5-sonnet",
    messages=[{"role": "user", "content": "Hello, Anthropic Claude 4.5 Sonnet!"}],
)

print(resp.choices[0].message.content)
print(f"Tokens: {resp.usage.total_tokens}")

# Per-call gateway metadata is returned on x-agentcc-* response headers.
# When you need it programmatically, use .with_raw_response to get them:
raw = client.chat.completions.with_raw_response.create(
    model="replicate/anthropic-claude-4-5-sonnet",
    messages=[{"role": "user", "content": "Same call, but I want the headers."}],
)
print("Provider:", raw.headers.get("x-agentcc-provider"))
print("Latency:", raw.headers.get("x-agentcc-latency-ms"), "ms")
print("Cost:   ", raw.headers.get("x-agentcc-cost"), "USD")
print("Cache:  ", raw.headers.get("x-agentcc-cache"))
Set AGENTCC_API_KEY with a key fromapp.futureagi.com.Gateway docs ↗

Compare with similar models

Anthropic Claude 4.5 Sonnet doesn't have a public Arena ELO score yet, so we group by provider only — quality-tier comparisons need a benchmark.

FAQ

How much does Anthropic Claude 4.5 Sonnet cost?

Input is priced at $3.00 per 1M tokens and output at $15.00 per 1M tokens (Replicate, last verified May 12, 2026).

What is the context window of Anthropic Claude 4.5 Sonnet?

Context window for Anthropic Claude 4.5 Sonnet is not currently public.

Does Anthropic Claude 4.5 Sonnet support function calling?

Yes — Anthropic Claude 4.5 Sonnet supports function (tool) calling, including parallel tool calls.

Is Anthropic Claude 4.5 Sonnet good for production?

Anthropic Claude 4.5 Sonnet is well-suited for pricing — cheaper than 88% of priced chat models on Future AGI and parallel tool calls — only 21% of chat models on Future AGI advertise this.

How can I route to Anthropic Claude 4.5 Sonnet with fallback?

Use Agent Command Center: a single OpenAI-compatible endpoint that supports cost-optimized routing, latency-aware retries, model fallback, and shadow traffic. Configure once, swap models without app changes.

Useful links for Anthropic Claude 4.5 Sonnet

Official sources, independent benchmarks, and pricing aggregators — no random search-engine guesses.