anthropic
Claude Fable API Pricing (September 2026)
anthropic/claude-fable-5.1Compare Claude Fable API pricing, explore each model’s capabilities, and start building with one NanoGPT API key.
- Input / 1M tokens
- $10.00
- Output / 1M tokens
- $50.00
- Cache read / 1M tokens
- $0.25
- Cache creation / 1M tokens
- $12.50
- 1-hour cache creation / 1M tokens
- $20.00
- Average output tokens
- 1,257
- Context
- 1,000,000
Get 3% extra credit when you top up with crypto. Top up with crypto
Build with Claude Fable 5.1
curl https://nano-gpt.com/api/v1/chat/completions \
-H "Authorization: Bearer $NANOGPT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-fable-5.1",
"messages": [
{
"role": "user",
"content": "Hello!"
}
]
}'Set NANOGPT_API_KEY in your environment. Keep your API key on the server.
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 · 24 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 5Evaluation: claude-fable-5-max-effort | 83.4% | $50 |
| Claude Fable 5.1Evaluation: claude-fable-5-1-max-effort | 83.8% | $50 |
| Claude Haiku 4.5 | Score unavailable | $5 |
| Claude Haiku 4.5 Thinking | Score unavailable | $5 |
| Claude 4 Opus | Score unavailable | $75 |
| Claude 4 Opus Thinking | Score unavailable | $75 |
| Claude 4.1 Opus | Score unavailable | $75 |
| Claude 4.1 Opus Thinking | Score unavailable | $75 |
| Claude 4.5 Opus | Score unavailable | $25 |
| Claude 4.5 Opus ThinkingEvaluation: claude-opus-4-5-20251101-thinking-64k-high-effort | 72.9% | $25 |
| Claude 4.6 Opus | Score unavailable | $25 |
| Claude 4.6 Opus ThinkingEvaluation: claude-opus-4-6-thinking-auto-high-effort | 75.1% | $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 | Score unavailable | $25 |
| Claude 4.7 Opus ThinkingEvaluation: claude-opus-4-7-xhigh-effort | 77% | $25 |
| Claude Opus 4.8 | Score unavailable | $25 |
| Claude Opus 4.8 ThinkingEvaluation: claude-opus-4-8-max-effort | 77.1% | $25 |
| Claude Opus 5Evaluation: claude-opus-5-max-effort | 80.5% | $25 |
| Claude Opus 5.5 | Score unavailable | $20 |
| Claude 4 Sonnet | Score unavailable | $15 |
| Claude 4 Sonnet Thinking | Score unavailable | $15 |
| Claude Sonnet 4.5 | Score unavailable | $15 |
| Claude Sonnet 4.5 Thinking | Score unavailable | $15 |
| Claude Sonnet 4.6 | Score unavailable | $15 |
| Claude Sonnet 4.6 ThinkingEvaluation: claude-sonnet-4-6-thinking-auto-medium-effort | 73.4% | $15 |
| Claude Sonnet 5 | Score unavailable | $10 |
| Claude Sonnet 5 ThinkingEvaluation: claude-sonnet-5-xhigh-effort | 76.6% | $10 |
| Claude Sonnet 5.5 | Score unavailable | $10 |
| Claude Sonnet 5.5 Thinking | Score unavailable | $10 |
| Model | Score | Output / 1M |
|---|---|---|
| Claude Fable 5Evaluation: claude-fable-5-max-effort | 86% | $50 |
| Claude Fable 5.1Evaluation: claude-fable-5-1-max-effort | 86.4% | $50 |
| Claude Haiku 4.5 | Score unavailable | $5 |
| Claude Haiku 4.5 Thinking | Score unavailable | $5 |
| Claude 4 Opus | Score unavailable | $75 |
| Claude 4 Opus Thinking | Score unavailable | $75 |
| Claude 4.1 Opus | Score unavailable | $75 |
| Claude 4.1 Opus Thinking | Score unavailable | $75 |
| Claude 4.5 Opus | Score unavailable | $25 |
| Claude 4.5 Opus ThinkingEvaluation: claude-opus-4-5-20251101-thinking-64k-high-effort | 79.7% | $25 |
| Claude 4.6 Opus | Score unavailable | $25 |
| Claude 4.6 Opus ThinkingEvaluation: claude-opus-4-6-thinking-auto-high-effort | 78.2% | $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 | Score unavailable | $25 |
| Claude 4.7 Opus ThinkingEvaluation: claude-opus-4-7-xhigh-effort | 82.1% | $25 |
| Claude Opus 4.8 | Score unavailable | $25 |
| Claude Opus 4.8 ThinkingEvaluation: claude-opus-4-8-max-effort | 81.8% | $25 |
| Claude Opus 5Evaluation: claude-opus-5-max-effort | 81.4% | $25 |
| Claude Opus 5.5 | Score unavailable | $20 |
| Claude 4 Sonnet | Score unavailable | $15 |
| Claude 4 Sonnet Thinking | Score unavailable | $15 |
| Claude Sonnet 4.5 | Score unavailable | $15 |
| Claude Sonnet 4.5 Thinking | Score unavailable | $15 |
| Claude Sonnet 4.6 | Score unavailable | $15 |
| Claude Sonnet 4.6 ThinkingEvaluation: claude-sonnet-4-6-thinking-auto-medium-effort | 79.3% | $15 |
| Claude Sonnet 5 | Score unavailable | $10 |
| Claude Sonnet 5 ThinkingEvaluation: claude-sonnet-5-xhigh-effort | 80.7% | $10 |
| Claude Sonnet 5.5 | Score unavailable | $10 |
| Claude Sonnet 5.5 Thinking | Score unavailable | $10 |
Fable model pricing per 1M tokens
| Model / API ID | Input | Cache read | Cache creation | Output | Context | Average output tokens | Estimated query cost |
|---|---|---|---|---|---|---|---|
Claude Fable 5anthropic/claude-fable-5 | $10.00 | $1.00 | $12.501-hour: $20.00 | $50.00 | 1,000,000 | 1,502 | $0.0851 |
Claude Fable 5.1anthropic/claude-fable-5.1 | $10.00 | $0.25 | $12.501-hour: $20.00 | $50.00 | 1,000,000 | 1,257 | $0.07285 |
Claude Fable Latestanthropic/claude-fable-latest | $10.00 | $0.25 | $12.501-hour: $20.00 | $50.00 | 1,000,000 | Unavailable | Unavailable |
Base text-token rates. 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 query 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.
anthropic
Claude Fable 5.1
anthropic/claude-fable-5.1Claude Fable 5.1 improves on Fable 5 across agentic coding, long-running workflows, front-end and visual code generation, finance, analysis, and knowledge work, with more concise plans and summaries. Anthropic retains prompts and outputs for 30 days; Zero Data Retention is not available.
- Input / 1M tokens
- $10.00
- Output / 1M tokens
- $50.00
- Cache read / 1M tokens
- $0.25
- Cache creation / 1M tokens
- $12.50
- 1-hour cache creation / 1M tokens
- $20.00
- Average output tokens
- 1,257
- Context
- 1,000,000
Build with Claude Fable 5.1
curl https://nano-gpt.com/api/v1/chat/completions \
-H "Authorization: Bearer $NANOGPT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-fable-5.1",
"messages": [
{
"role": "user",
"content": "Hello!"
}
]
}'Set NANOGPT_API_KEY in your environment. Keep your API key on the server.
anthropic
Claude Fable 5
anthropic/claude-fable-5Anthropic Claude Fable 5 for long-running coding, research, and knowledge-work tasks. Anthropic retains prompts and outputs for 30 days under its Covered Models policy; Zero Data Retention is not available.
- Input / 1M tokens
- $10.00
- Output / 1M tokens
- $50.00
- Cache read / 1M tokens
- $1.00
- Cache creation / 1M tokens
- $12.50
- 1-hour cache creation / 1M tokens
- $20.00
- Average output tokens
- 1,502
- Context
- 1,000,000
Build with Claude Fable 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-fable-5",
"messages": [
{
"role": "user",
"content": "Hello!"
}
]
}'Set NANOGPT_API_KEY in your environment. Keep your API key on the server.
anthropic
Claude Fable Latest
anthropic/claude-fable-latestCompatibility alias for Claude Fable 5.1. Anthropic retains prompts and outputs for 30 days under its Covered Models policy; Zero Data Retention is not available.
- Input / 1M tokens
- $10.00
- Output / 1M tokens
- $50.00
- Cache read / 1M tokens
- $0.25
- Cache creation / 1M tokens
- $12.50
- 1-hour cache creation / 1M tokens
- $20.00
- Context
- 1,000,000
Build with Claude Fable 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-fable-latest",
"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.