API Need50% off
Uptime
Total Context
1M
Max Output
128K
Input
$5/ 1M
Output
$25/ 1M
Cache Read
$0.5/ 1M
Cache Write
$6.25/ 1M
AAnthropic: Claude Fable 5 API
anthropic/claude-fable-5
Claude Fable 5 API is the highest-priced Anthropic model in this catalog, with text, image, and file input and a 1M context window. It is an evaluation choice for teams seeking the Fable tier, not a page that infers performance from other Claude models. [1]
Claude Fable 5 API has no row in the current LLM2014 logic dataset. Its pricing is twice the official input and output rates of Claude Opus 5, so buyers should validate a concrete Fable-specific advantage on their own workload before adopting it at scale. [1][2]
MODALITIES
Price$5 / $25 / 1MCONTEXT1M
Playground
Test Claude Fable 5 API with representative production prompts before using claude-fable-5 in a live workflow.
Providers
APINEED lists Claude Fable 5 API with text, image, and file input, text output, and a 1M context window. APINEED routing and prepaid rates are identified separately. [1]
Discount
Claude Fable 5 carries a pronounced premium over the rest of the listed Claude range. APINEED cuts the official rates in half, yet controlled prompt testing remains important because the absolute output cost is still high. The table compares official Claude Fable 5 API pricing with the APINEED prepaid rate.
Official
Provider baselineInput $10/ 1MOutput $50/ 1M
BaselineAPINEED50% off
Prepaid creditsInput $5/ 1MOutput $25/ 1M
Availability
APINEED continuously monitors Claude Fable 5 API access and keeps requests on healthy capacity.
System statusLast 90 days
Claude Fable 5 API Benchmarks
No current LLM2014 result is mapped to Claude Fable 5. The leaderboard is shown for reference only, and the page deliberately avoids presenting another Claude tier’s score as evidence. The complete LLM2014 logic 2026-07 table remains below, with Claude Fable 5 API highlighted when a current row exists. [2]
| 1st | GPT-5.5 (xhigh) | 83.80 | 77.46 | 7.57% | 494s | 30,811 | $25.51 | $29.57 |
| 2nd | Kimi-K3 (max) | 82.91 | 74.80 | 9.78% | 1095s | 39,912 | $16.76 | $15.00 |
| 3rd | Claude Opus 4.8 (xhigh) | 82.62 | 66.70 | 19.27% | 791s | 41,833 | $28.86 | $24.64 |
| 4th | GPT-5.6 Sol (xhigh) | 81.94 | 72.99 | 10.92% | 369s | 17,433 | $14.43 | $29.57 |
| 5th | Claude Opus 5 (xhigh) | 78.38 | 71.88 | 8.29% | 426s | 26,392 | $18.21 | $24.64 |
| 6th | Qwen3.7-Max (xhigh) | 74.56 | 66.95 | 10.21% | 374s | 54,207 | $7.81 | $5.14 |
| 7th | GLM-5.2 (max) | 73.68 | 58.27 | 20.91% | 890s | 45,683 | $5.12 | $4.00 |
| 8th | Gemini 3.1 Pro (high) | 73.36 | 58.46 | 20.31% | 214s | 25,905 | $8.58 | $11.83 |
| 9th | GPT-5.6 Luna (xhigh) | 69.49 | 51.97 | 25.21% | 242s | 38,083 | $6.31 | $5.91 |
| 10th | DeepSeek V4 Pro (max) | 68.00 | 49.97 | 26.51% | 1468s | 60,558 | $1.45 | $0.86 |
| 11th | Grok 4.5 (high) | 67.59 | 56.72 | 16.08% | 451s | 43,372 | $7.18 | $5.91 |
| 12th | Muse Spark 1.1 | 66.18 | 57.23 | 13.52% | 542s | 42,416 | $4.98 | $4.19 |
| 13th | Gemini 3.5 Flash (high) | 65.92 | 60.39 | 8.39% | 188s | 36,372 | $9.03 | $8.87 |
| 14th | Doubao-Seed-2.1-pro (high) | 58.69 | 49.35 | 15.91% | 2003s | 85,059 | $10.21 | $4.29 |
| 15th | Qwen3.7-Plus (high) | 58.50 | 44.09 | 24.63% | 1237s | 57,152 | $1.83 | $1.14 |
| 16th | Gemini 3.6 Flash (high) | 56.87 | 41.74 | 26.6% | 206s | 26,329 | $5.45 | $7.39 |
| 17th | Tencent Hy3 (high) | 54.42 | 44.60 | 18.04% | 1035s | 52,037 | $0.83 | $0.57 |
| 18th | Claude Sonnet 5 (xhigh) | 51.37 | 43.14 | 16.02% | 529s | 44,118 | $12.18 | $9.86 |
| 19th | DeepSeek V4 Flash (max) | 50.62 | 36.24 | 28.41% | 611s | 49,593 | $0.40 | $0.29 |
| 20th | MiniMax-M3 | 49.18 | 40.94 | 16.75% | 985s | 56,467 | $1.90 | $1.20 |
| 21st | Claude Opus 5 | 42.08 | 31.73 | 24.6% | 154s | 10,180 | $7.02 | $24.64 |
| 22nd | Claude Opus 4.6 | 36.88 | 25.79 | 30.07% | 65s | 4,387 | $3.03 | $24.64 |
| 23rd | Doubao-Seed-2.0-lite 0428 (high) | 35.32 | 26.77 | 24.21% | 656s | 26,726 | $0.38 | $0.51 |
| 24th | Gemini 3.5 Flash (minimal) | 33.24 | 22.22 | 33.15% | 44s | 6,189 | $1.54 | $8.87 |
| 25th | Ling-3.0-flash | 32.53 | 20.62 | 36.61% | 688s | 86,204 | $0.00 | $0.00 |
| 26th | Gemini 3.5 Flash Lite (high) | 30.23 | 22.82 | 24.51% | 188s | 18,297 | $1.26 | $2.46 |
| 27th | GPT-5.5 Instant | 28.87 | 17.66 | 38.83% | 25s | 1,673 | $1.39 | $29.57 |
| 28th | Gemma 4 31B | 27.91 | 22.04 | 21.03% | 770s | 15,050 | $0.17 | $0.39 |
| 29th | MiMo-V2.5-Pro | 26.91 | 13.00 | 51.69% | 478s | 29,443 | $0.71 | $0.86 |
| 30th | Qwen3.7-Plus | 26.19 | 16.23 | 38.03% | 314s | 8,692 | $0.28 | $1.14 |
| 31st | Step-3.7-Flash | 26.18 | 13.74 | 47.52% | 258s | 44,912 | $1.46 | $1.16 |
| 32nd | Qwen3.5-27B | 24.96 | 17.98 | 27.96% | 451s | 26,391 | $0.51 | $0.69 |
| 33rd | Gemini 3.1 Flash Lite (high) | 23.78 | 14.30 | 39.87% | 82s | 28,351 | $1.17 | $1.48 |
| 34th | Claude Sonnet 5 | 23.64 | 10.86 | 54.06% | 109s | 5,962 | $1.65 | $9.86 |
| 35th | Qwen3.7-Max | 22.45 | 18.53 | 17.46% | 196s | 6,710 | $0.97 | $5.14 |
| 36th | ERNIE 5.1 | 20.49 | 15.49 | 24.4% | 457s | 24,093 | $1.73 | $2.57 |
| 37th | openPangu-2.0-Flash | 19.83 | 10.76 | 45.74% | 571s | 28,199 | $0.18 | $0.23 |
| 38th | LongCat-2.0 | 19.40 | 9.74 | 49.79% | 395s | 14,886 | $0.48 | $1.14 |
| 39th | DeepSeek V4 Flash | 19.39 | 13.37 | 31.05% | 63s | 5,286 | $0.04 | $0.29 |
| 40th | Mistral Medium 3.5 | 18.44 | 13.87 | 24.78% | 194s | 27,854 | $5.77 | $7.39 |
| 41st | Doubao-Seed-2.1-pro | 17.49 | 9.74 | 44.31% | 305s | 6,009 | $0.72 | $4.29 |
| 42nd | GLM-5.2 | 14.80 | 10.43 | 29.53% | 23s | 953 | $0.11 | $4.00 |
| 43rd | Ling-2.6-1T | 13.05 | 8.39 | 35.71% | 229s | 4,770 | $0.31 | $2.29 |
| 44th | iFLYTEK Spark X2 | 12.39 | 6.21 | 49.88% | 458s | 11,285 | $0.09 | $0.29 |
| 45th | Gemini 3.1 Flash Lite | 11.79 | 10.28 | 12.81% | 9s | 773 | $0.03 | $1.48 |
| 46th | Mistral Medium 3.5 | 10.83 | 7.13 | 34.16% | 17s | 2,546 | $0.53 | $7.39 |
| 47th | Ling-2.6-flash | 10.07 | 4.85 | 51.84% | 25s | 4,997 | $0.04 | $0.30 |
Quick Start
Connect Claude Fable 5 API without changing the OpenAI-style request shape. Use an evaluation set that includes long documents, image-plus-text tasks, and tool calls before routing production traffic. The 1M context supports large evidence packs without changing endpoints.
Get your API key
Create an APINEED key for Claude Fable 5 API and keep it in an environment variable.
export API_NEED_API_KEY=sk-apineed-v1-...Make your first request
Use claude-fable-5 for Claude Fable 5 API with the APINEED API. The request shape is compatible with OpenAI chat completions, so most SDKs only need a base URL change.
TypeScript SDKPythoncURLOpenAI SDK
import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.API_NEED_API_KEY,
baseURL: "https://apineed.com/v1"
});
const result = await client.chat.completions.create({
model: "anthropic/claude-fable-5",
messages: [
{ role: "user", content: "Why is the sky blue?" }
]
});
console.log(result.choices[0].message.content);Enable streaming and fallbacks
Add stream: true when Claude Fable 5 API should return server-sent events. APINEED keeps routing, provider health, and fallback handling behind the same endpoint.
curl https://apineed.com/v1/chat/completions \
-H "Authorization: Bearer $API_NEED_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-fable-5",
"stream": true,
"messages": [{ "role": "user", "content": "Hello" }]
}'Claude Fable 5 API Endpoint
Claude Fable 5 API accepts chat conversations here with streaming or non-streaming text output; the supported controls are listed on this page.
POST
/v1/chat/completions- Authorization
- Bearer $API_NEED_API_KEY
- Content-Type
- application/json
- HTTP-Referer
- optional - your site URL, for rankings
- X-Title
- optional - your site name, for rankings
- Model
- anthropic/claude-fable-5
Parameters
Claude Fable 5 API parameters currently listed for anthropic/claude-fable-5 by the OpenRouter Models API. [1]
| Name | Type | Status | Description |
|---|---|---|---|
include_reasoning | boolean | Supported | Includes reasoning content in the response when available. |
max_completion_tokens | integer | Supported | Limits the combined visible and reasoning output tokens. |
max_tokens | integer | Supported | Limits generated output tokens. |
reasoning | object | Supported | Controls reasoning behavior and token allocation. |
reasoning_effort | enum | Supported | Selects the model reasoning effort. |
response_format | object | Supported | Requests a specific response format. |
stop | string or array | Supported | Stops generation at the supplied sequence. |
structured_outputs | boolean | Supported | Enables schema-constrained structured output. |
tool_choice | string or object | Supported | Controls which tool the model may call. |
tools | array | Supported | Defines tools available to the model. |
verbosity | enum | Supported | Controls response detail for models that expose verbosity. |
Claude Fable 5 API Q&A
Model-specific answers for teams comparing Claude Fable 5 API on capability, benchmark evidence, integration, and cost.
Why is Claude Fable 5 API priced above Claude Opus 5?
The catalog’s official rates list Claude Fable 5 at $10 input and $50 output per million tokens, twice the corresponding Claude Opus 5 rates.
Does Claude Fable 5 API have a verified logic rank here?
No. It is not in the current LLM2014 dataset, so APINEED leaves its rank and model metrics unavailable.
How should teams evaluate Claude Fable 5 API?
Build a representative test set and compare response quality, tool behavior, latency, and total token use against lower-priced Claude tiers.
What content can Claude Fable 5 receive?
Claude Fable 5 API's catalog record supports text, image, and file input, text output, and up to a 1M context window.
Which endpoint serves Claude Fable 5 API?
Call Claude Fable 5 API through https://apineed.com/v1/chat/completions with claude-fable-5 as the model value. Existing OpenAI SDK clients usually need only the APINEED base URL and key.
How do I validate Claude Fable 5 API before release?
Evaluate Claude Fable 5 API on representative prompts, record quality, latency, and token use, then choose reasoning settings and fallbacks from those results.
How to Deploy the Claude Fable 5 API on apineed.com
Deploy Claude Fable 5 API through APINEED after validating its model-specific trade-offs above. The API key, credit, and endpoint flow stays consistent across the catalog.
Add credits for Claude Fable 5 API
Add credits on APINEED before deploying the Claude Fable 5 API. Pay-as-you-go billing lets usage start small and scale with production traffic.
Get your API key
Create an APINEED API key for the Claude Fable 5 API. The same key can call Claude Fable 5 and other AI APIs through apineed.com.
Set the model slug
Use claude-fable-5 as the model value when you deploy the Claude Fable 5 API. Keep the APINEED base URL at https://apineed.com/v1.
Send a request to Claude Fable 5 API
Send chat completions or responses to the Claude Fable 5 API from Claude Code, Codex, or any custom agent. The request keeps its OpenAI-compatible shape.