anthropic/claude-fable-5-1
estimated usage cost
$35.00
1,000 requests × (1,000 uncached input × $10.00 + 500 output × $50.00) / 1,000,000 = $35.00
base rates; no context pricing tiers are published.
Claude Fable 5.1 vs Qwen3.6 27B
rates, context and capabilities side by side on the impossibl api, and what the same workload costs on each.
| specification | Claude Fable 5.1 anthropic/claude-fable-5-1 | Qwen3.6 27B qwen/qwen3.6-27b |
|---|---|---|
| input · usd / 1m tok | $10.00 | $0.60 |
| output · usd / 1m tok | $50.00 | $3.60 |
| context window | 1mtokens | 229.38ktokens |
| modalities · in → out | takes text and image in, gives text out | takes text and image in, gives text out |
pricing
| base api rates · usd per 1m tokens | Claude Fable 5.1 anthropic/claude-fable-5-1 | Qwen3.6 27B qwen/qwen3.6-27b |
|---|---|---|
| input | $10.00 | $0.60 |
| output | $50.00 | $3.60 |
| cache read | $0.25 | not published |
| cache write · default ttl | $12.50 | not published |
| cache write · 1h ttl | $20.00 | not published |
the estimate below prices one workload at these rates on every model.
specifications
| as published | Claude Fable 5.1 anthropic/claude-fable-5-1 | Qwen3.6 27B qwen/qwen3.6-27b |
|---|---|---|
| creator | Anthropic | Qwen |
| model type | Text generation | Text generation |
| context window | 1,000,000tokens | 229,376tokens |
| input | takes text and image in, gives text out | takes text and image in, gives text out |
| output | text | text |
| tool calling | not verified | not verified |
| released | sep 1, 2026 | apr 22, 2026 |
| endpoint | /v1/chat/completions | /v1/chat/completions |
unknown means the public catalog does not establish that fact. a model's documented capabilities can differ from what a particular api supports. see the model documentation for integration details.
benchmarks
| primary configuration | Claude Fable 5.1 anthropic/claude-fable-5-1 | Qwen3.6 27B qwen/qwen3.6-27b reasoning |
|---|---|---|
| intelligence index · gateway rank | 53.4#3 of 109 | 21.4#74 of 109 |
| coding index | 81.6#1 of 64 | not measured |
| agentic index | 57.9#1 of 53 | not measured |
| omniscience | not measured | -20.0#67 of 85 |
| gpqa | not measured | 84.2%#46 of 81 |
| humanity’s last exam | not measured | 23.1%#56 of 88 |
| tau2 | not measured | 94.2% |
| aa-lcr | not measured | 77.3% |
| mmmu-pro | not measured | 74.6% |
| ifbench | not measured | 67.6% |
| scicode | not measured | 42.8% |
| terminal-bench hard | not measured | 34.8% |
| tau banking | not measured | 16.7% |
| automationbench partial | not measured | 11.0% |
| gdp.pdf all-pass | not measured | 11.0% |
| critpt | not measured | 1.1% |
Claude Fable 5.1 source ↗Qwen3.6 27B source ↗
each column describes the tested configuration named under the model; performance and costs can differ on impossibl. a score one model was not measured on is left blank rather than scored zero. indices are ranked against every model on the gateway with one. last checked 2026-10-14.
estimate your cost
one token workload, priced on every model at the published rates, in usd. change the numbers to match yours.
qwen/qwen3.6-27b
estimated usage cost
$2.40
1,000 requests × (1,000 uncached input × $0.60 + 500 output × $3.60) / 1,000,000 = $2.40
base rates; no context pricing tiers are published.
estimates use published impossibl api usage rates. configured billing adjustments, funding fees, taxes, and custom workspace rates are excluded and may change the final amount.
image and audio usage, cache creation, and additional tool charges are excluded. reasoning tokens count as billable output, even when they are not visible in the response.
summary
Claude Fable 5.1 and Qwen3.6 27B are available through the Impossibl API. they share the /v1/chat/completions endpoint; the model identifier selects the model for a request.
Claude Fable 5.1 is created by Anthropic. It has a 1,000,000-token context window. Base API pricing (USD): $10.00 per million input tokens; $50.00 per million output tokens.
Qwen3.6 27B is created by Qwen. It has a 229,376-token context window. Base API pricing (USD): $0.60 per million input tokens; $3.60 per million output tokens.
Claude Fable 5.1 →Qwen3.6 27B →
this page compares Claude Fable 5.1 vs Qwen3.6 27B as listed by the impossibl public api. prices and availability come from that catalog, refreshed here every five minutes. this is an impossibl offering, not a comparison of independent hosting-provider quotes.
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