anthropic
Claude Sonnet API Pricing (October 2026)
anthropic/claude-sonnet-5Compare Claude Sonnet API pricing, explore each model’s capabilities, and start building with one NanoGPT API key.
- Input / 1M tokens
- $2.00
- Output / 1M tokens
- $10.00
- Cache read / 1M tokens
- $0.20
- Cache creation / 1M tokens
- $2.50
- 1-hour cache creation / 1M tokens
- $4.00
- Average output tokens
- 403
- Context
- 1,000,000
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Build with Claude Sonnet 5
curl https://nano-gpt.com/api/v1/chat/completions \
-H "Authorization: Bearer $NANOGPT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-sonnet-5",
"messages": [
{
"role": "user",
"content": "Hello!"
}
]
}'Set NANOGPT_API_KEY in your environment. Keep your API key on the server.
Sonnet model pricing per 1M tokens
| Model / API ID | Input | Cache read | Cache creation | Output | Batch input | Batch output | Context | Average output tokens | Estimated request cost |
|---|---|---|---|---|---|---|---|---|---|
Claude Sonnet 4.5claude-sonnet-4-5-20250929 | $3.00 | $0.30 | $3.751-hour: $6.00 | $15.00 | $1.50 | $7.50 | 200,000 | 219 | $0.00629 |
Claude Sonnet 4.5 Thinkingclaude-sonnet-4-5-20250929-thinking | $3.00 | $0.30 | $3.751-hour: $6.00 | $15.00 | $1.50 | $7.50 | 200,000 | 1,130 | $0.01995 |
Claude Sonnet 4.6anthropic/claude-sonnet-4.6 | $3.00 | $0.30 | $3.751-hour: $6.00 | $15.00 | $1.50 | $7.50 | 1,000,000 | 671 | $0.01307 |
Claude Sonnet 4.6 Thinkinganthropic/claude-sonnet-4.6:thinking | $3.00 | $0.30 | $3.751-hour: $6.00 | $15.00 | $1.50 | $7.50 | 1,000,000 | 1,227 | $0.02141 |
Claude Sonnet 5anthropic/claude-sonnet-5 | $2.00 | $0.20 | $2.501-hour: $4.00 | $10.00 | $1.00 | $5.00 | 1,000,000 | 403 | $0.00603 |
Claude Sonnet 5 Thinkinganthropic/claude-sonnet-5:thinking | $2.00 | $0.20 | $2.501-hour: $4.00 | $10.00 | $1.00 | $5.00 | 1,000,000 | 1,148 | $0.01348 |
Claude Sonnet 5.5anthropic/claude-sonnet-5.5 | $2.00 | $0.10 | $2.501-hour: $4.00 | $10.00 | $1.00 | $5.00 | 1,000,000 | 1,058 | $0.01258 |
Claude Sonnet 5.5 Thinkinganthropic/claude-sonnet-5.5:thinking | $2.00 | $0.10 | $2.501-hour: $4.00 | $10.00 | $1.00 | $5.00 | 1,000,000 | 3,258 | $0.03458 |
Claude Sonnet Latestanthropic/claude-sonnet-latest | $2.00 | $0.10 | $2.501-hour: $4.00 | $10.00 | $1.00 | $5.00 | 1,000,000 | 1,371 | $0.01571 |
Base text-token rates. Batch columns show supported standard Batch API rates; long-context tiers and additional charges can apply. Long-context pricing, tool charges, service tiers, and provider selection can change the total. Cache creation is charged when writing tokens to the cache; cache read applies when reusing them. The default cache duration applies unless labeled otherwise. Unsupported cache rates are marked unavailable.
Estimated request cost combines your input-token count with the model’s average output, rounded to whole tokens, at current standard rates. It assumes uncached input and excludes tool charges. This is an estimate for that workload, not a measured average total bill.
Compare model intelligence and coding benchmarks
Compare models using published benchmark scores. Higher scores are better. Each chart uses one benchmark and source version; these are current comparisons, not scores recorded at launch. Ranking pairs each model’s standard and thinking evaluations on one row, Value plots score against the output token rate, and Generations tracks each family release by release. Thinking evaluations are labeled with their published settings, and evaluation effort can affect scores.
Artificial Analysis Intelligence Index
Source version not published · 23 models scored
Using cached Artificial Analysis scores. Recent models and evaluations may be missing.
Which model scores highest, and what does thinking add?
Source: Artificial Analysis. Missing scores mean no verified matching result is available here for this version; they do not mean the model was never evaluated. Token rates are NanoGPT standard catalogue rates.
View all benchmark scores and evaluation details
| Model | Score | Output / 1M |
|---|---|---|
| Claude Fable 5 | 49.6 | $50 |
| Claude Fable 5.1 | 53.4 | $50 |
| Claude Haiku 4.5 | 15.4 | $5 |
| Claude Haiku 4.5 Thinking | 16.9 | $5 |
| Claude Haiku 5.5 | 43.4 | $0.5 |
| Claude 4 Opus | 16.6 | $75 |
| Claude 4 Opus Thinking | Score unavailable | $75 |
| Claude 4.1 Opus | 18.6 | $75 |
| Claude 4.1 Opus Thinking | Score unavailable | $75 |
| Claude 4.5 Opus | 23.7 | $25 |
| Claude 4.5 Opus Thinking | 29.1 | $25 |
| Claude 4.6 Opus | 26.4 | $25 |
| Claude 4.6 Opus Thinking | 31.9 | $25 |
| Claude 4.6 Opus Thinking Low | Score unavailable | $25 |
| Claude 4.6 Opus Thinking Max | Score unavailable | $25 |
| Claude 4.6 Opus Thinking Medium | Score unavailable | $25 |
| Claude 4.7 Opus | 30.9 | $25 |
| Claude 4.7 Opus Thinking | 40.7 | $25 |
| Claude Opus 4.8 | Score unavailable | $25 |
| Claude Opus 4.8 Thinking | 41.8 | $25 |
| Claude Opus 5 | 50.8 | $25 |
| Claude Opus 5.5 | 57.6 | $20 |
| Claude Sonnet 4.5 | 19.3 | $15 |
| Claude Sonnet 4.5 Thinking | 20.7 | $15 |
| Claude Sonnet 4.6 | 24.7 | $15 |
| Claude Sonnet 4.6 Thinking | 30.1 | $15 |
| Claude Sonnet 5 | 23.2 | $10 |
| Claude Sonnet 5 Thinking | 38.2 | $10 |
| Claude Sonnet 5.5 | Score unavailable | $10 |
| Claude Sonnet 5.5 Thinking | 56 | $10 |
anthropic
Claude Sonnet 5
anthropic/claude-sonnet-5Claude Sonnet 5 supports coding, agentic workflows, long-context reasoning, computer use, and practical knowledge work.
- Input / 1M tokens
- $2.00
- Output / 1M tokens
- $10.00
- Cache read / 1M tokens
- $0.20
- Cache creation / 1M tokens
- $2.50
- 1-hour cache creation / 1M tokens
- $4.00
- Average output tokens
- 403
- Context
- 1,000,000
Build with Claude Sonnet 5
curl https://nano-gpt.com/api/v1/chat/completions \
-H "Authorization: Bearer $NANOGPT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-sonnet-5",
"messages": [
{
"role": "user",
"content": "Hello!"
}
]
}'Set NANOGPT_API_KEY in your environment. Keep your API key on the server.
anthropic
Claude Sonnet 5 Thinking
anthropic/claude-sonnet-5:thinkingClaude Sonnet 5 with adaptive thinking enabled for complex coding, planning, and agentic work.
- Input / 1M tokens
- $2.00
- Output / 1M tokens
- $10.00
- Cache read / 1M tokens
- $0.20
- Cache creation / 1M tokens
- $2.50
- 1-hour cache creation / 1M tokens
- $4.00
- Average output tokens
- 1,148
- Context
- 1,000,000
Build with Claude Sonnet 5 Thinking
curl https://nano-gpt.com/api/v1/chat/completions \
-H "Authorization: Bearer $NANOGPT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-sonnet-5:thinking",
"messages": [
{
"role": "user",
"content": "Hello!"
}
]
}'Set NANOGPT_API_KEY in your environment. Keep your API key on the server.
anthropic
Claude Sonnet 4.6
anthropic/claude-sonnet-4.6Claude Sonnet 4.6 is Anthropic's most capable Sonnet yet — a full upgrade across coding, computer use, long-context reasoning, agent planning, and design. Supports up to a 1M-token context window at Sonnet pricing.
- Input / 1M tokens
- $3.00
- Output / 1M tokens
- $15.00
- Cache read / 1M tokens
- $0.30
- Cache creation / 1M tokens
- $3.75
- 1-hour cache creation / 1M tokens
- $6.00
- Average output tokens
- 671
- Context
- 1,000,000
Build with Claude Sonnet 4.6
curl https://nano-gpt.com/api/v1/chat/completions \
-H "Authorization: Bearer $NANOGPT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-sonnet-4.6",
"messages": [
{
"role": "user",
"content": "Hello!"
}
]
}'Set NANOGPT_API_KEY in your environment. Keep your API key on the server.
anthropic
Claude Sonnet 4.6 Thinking
anthropic/claude-sonnet-4.6:thinkingClaude Sonnet 4.6 with extended thinking enabled for tougher coding, planning, and multi‑tool tasks. Ideal for long‑horizon agent workflows and complex problem solving.
- Input / 1M tokens
- $3.00
- Output / 1M tokens
- $15.00
- Cache read / 1M tokens
- $0.30
- Cache creation / 1M tokens
- $3.75
- 1-hour cache creation / 1M tokens
- $6.00
- Average output tokens
- 1,227
- Context
- 1,000,000
Build with Claude Sonnet 4.6 Thinking
curl https://nano-gpt.com/api/v1/chat/completions \
-H "Authorization: Bearer $NANOGPT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-sonnet-4.6:thinking",
"messages": [
{
"role": "user",
"content": "Hello!"
}
]
}'Set NANOGPT_API_KEY in your environment. Keep your API key on the server.
anthropic
Claude Sonnet 4.5
claude-sonnet-4-5-20250929Frontier‑level coding and agentic performance. Claude Sonnet 4.5 leads on real‑world coding tasks and shows substantial gains in computer use, reasoning, and math. Designed for long‑horizon, multi‑step work across IDE + terminal workflows, large codebases, and complex agents — a drop‑in upgrade over previous Sonnet versions.
- Input / 1M tokens
- $3.00
- Output / 1M tokens
- $15.00
- Cache read / 1M tokens
- $0.30
- Cache creation / 1M tokens
- $3.75
- 1-hour cache creation / 1M tokens
- $6.00
- Average output tokens
- 219
- Context
- 200,000
Build with Claude Sonnet 4.5
curl https://nano-gpt.com/api/v1/chat/completions \
-H "Authorization: Bearer $NANOGPT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-sonnet-4-5-20250929",
"messages": [
{
"role": "user",
"content": "Hello!"
}
]
}'Set NANOGPT_API_KEY in your environment. Keep your API key on the server.
anthropic
Claude Sonnet 4.5 Thinking
claude-sonnet-4-5-20250929-thinkingAdds extended, step‑by‑step reasoning for tougher coding, planning, and multi‑tool tasks. Ideal for long‑horizon agent workflows, complex problem solving, and scenarios that benefit from explicit thinking traces.
- Input / 1M tokens
- $3.00
- Output / 1M tokens
- $15.00
- Cache read / 1M tokens
- $0.30
- Cache creation / 1M tokens
- $3.75
- 1-hour cache creation / 1M tokens
- $6.00
- Average output tokens
- 1,130
- Context
- 200,000
Build with Claude Sonnet 4.5 Thinking
curl https://nano-gpt.com/api/v1/chat/completions \
-H "Authorization: Bearer $NANOGPT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-sonnet-4-5-20250929-thinking",
"messages": [
{
"role": "user",
"content": "Hello!"
}
]
}'Set NANOGPT_API_KEY in your environment. Keep your API key on the server.
anthropic
Claude Sonnet Latest
anthropic/claude-sonnet-latestCompatibility alias that routes to the newest version of Claude Sonnet. Currently routes to Claude Sonnet 5.5 Thinking.
- Input / 1M tokens
- $2.00
- Output / 1M tokens
- $10.00
- Cache read / 1M tokens
- $0.10
- Cache creation / 1M tokens
- $2.50
- 1-hour cache creation / 1M tokens
- $4.00
- Average output tokens
- 1,371
- Context
- 1,000,000
Build with Claude Sonnet Latest
curl https://nano-gpt.com/api/v1/chat/completions \
-H "Authorization: Bearer $NANOGPT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-sonnet-latest",
"messages": [
{
"role": "user",
"content": "Hello!"
}
]
}'Set NANOGPT_API_KEY in your environment. Keep your API key on the server.
anthropic
Claude Sonnet 5.5
anthropic/claude-sonnet-5.5Claude Sonnet 5.5 handles everyday coding, tool-based workflows, visual analysis, and polished writing with a 1M-token context window. This version skips up-front thinking and can reason between tool calls for faster responses; use Thinking for deeper planning and complex problems.
- Input / 1M tokens
- $2.00
- Output / 1M tokens
- $10.00
- Cache read / 1M tokens
- $0.10
- Cache creation / 1M tokens
- $2.50
- 1-hour cache creation / 1M tokens
- $4.00
- Average output tokens
- 1,058
- Context
- 1,000,000
Build with Claude Sonnet 5.5
curl https://nano-gpt.com/api/v1/chat/completions \
-H "Authorization: Bearer $NANOGPT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-sonnet-5.5",
"messages": [
{
"role": "user",
"content": "Hello!"
}
]
}'Set NANOGPT_API_KEY in your environment. Keep your API key on the server.
anthropic
Claude Sonnet 5.5 Thinking
anthropic/claude-sonnet-5.5:thinkingClaude Sonnet 5.5 with adaptive thinking for complex coding, multi-step tool use, visual analysis, and detailed planning. Supports a 1M-token context window and five reasoning effort levels, with stronger thinking available when a task needs it.
- Input / 1M tokens
- $2.00
- Output / 1M tokens
- $10.00
- Cache read / 1M tokens
- $0.10
- Cache creation / 1M tokens
- $2.50
- 1-hour cache creation / 1M tokens
- $4.00
- Average output tokens
- 3,258
- Context
- 1,000,000
Build with Claude Sonnet 5.5 Thinking
curl https://nano-gpt.com/api/v1/chat/completions \
-H "Authorization: Bearer $NANOGPT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-sonnet-5.5:thinking",
"messages": [
{
"role": "user",
"content": "Hello!"
}
]
}'Set NANOGPT_API_KEY in your environment. Keep your API key on the server.
Estimate a request’s token cost
One request, standard uncached text tokens. Excludes tools and other charges. Known long-context rates apply automatically; invalid workloads or missing rates cannot be estimated.
Related questions
Can you use Claude Sonnet for free?
Yes, you can use it free on the web and mobile apps with no credit card. The limit is roughly 15 to 40 messages every 5 hours, and paid users get served first when traffic spikes.
How to get Claude Pro for a less price?
The cheapest ways to get and use Claude depend on whether you need the standard web chat interface, developer API access, or tool integrations like Claude Code.
What Claude model is best for Roleplay?
It's Claude Opus, either 4.8 or 5. It scores 97% on our Roleplay benchmark, the highest of any model we track. Sonnet is the faster storyteller, and Fable handles long multi-day campaigns.