What models are supported?

We support the latest and most capable models from all leading platforms, including OpenAI, Anthropic, Google, Meta, and DeepSeek. Our system is designed to integrate new models within hours of their public release.

How does the credit system work?

Each plan comes with a set amount of monthly credits. Credits are consumed based on the token usage of the models you interact with. We bill in micro-credits to ensure you only pay for what you actually use.

How does the credit system translate to tokens?

Credits map directly to raw token consumption. For example, $10 of credits corresponds to roughly 1 million input tokens of GPT-4o, or up to 60 million input tokens on our open-source models. View the Benchmarks section for detailed conversion rates.

Is there a free trial?

Yes! Every new account automatically starts with a 7-day Developer plan trial at no cost — 200 credits included. You get full access to multi-model comparison, API key support, and cost visibility. After 7 days, choose Personal ($10/mo) or Developer ($20/mo) to continue.

Can I cancel my subscription at any time?

Absolutely. You can manage your subscription through our billing portal and cancel at any time. Your credits will remains active until the end of your billing cycle.

Claude Fable 5 vs Claude Opus 4.8 — Price, Context, and Capability Compared

Verdict

Claude Fable 5 costs 2.0× more per blended million tokens than Claude Opus 4.8. Claude Fable 5 has the larger context window (1,000,000 tokens). Default to Claude Opus 4.8 unless you specifically need Claude Fable 5's edge.

Spec comparison

	Claude Fable 5	Claude Opus 4.8
Price (input)	$10.00/M	$5.00/M ✓
Price (output)	$50.00/M	$25.00/M ✓
Blended price	$20.00/M	$10.00/M ✓
Context window	1,000,000 tokens ✓	500,000 tokens
Max output	128,000 tokens ✓	64,000 tokens
Modalities	text, vision	text, vision
Reasoning mode	Yes	Yes
Released	2026-05	2026-04
Speed	41 t/s	58 t/s ✓

Cost at scale (3:1 blended)

Tokens / month	Claude Fable 5	Claude Opus 4.8	Delta
1,000,000	$20.00	$10.00	$10.00 (2.0×)
10,000,000	$200.00	$100.00	$100.00 (2.0×)
100,000,000	$2000.00	$1000.00	$1000.00 (2.0×)

Choose Claude Fable 5 if…

✓Most capable widely-released Claude
✓1M-token context
✓Extended-thinking mode for hard reasoning
✓The most demanding reasoning and long-horizon agentic work.

Choose Claude Opus 4.8 if…

✓Elite coding and multi-step reasoning
✓Strong instruction following on ambiguous prompts
✓Extended-thinking mode
✓Complex, multi-step tasks where Fable 5’s premium isn’t justified.

Run this exact matchup right now

Send the same prompt to Claude Fable 5 and Claude Opus 4.8 side by side and see the outputs yourself.

Try Claude Fable 5 vs Claude Opus 4.8 Free

FAQ

Is Claude Fable 5 cheaper than Claude Opus 4.8?

Claude Opus 4.8 is cheaper, at $10.00 per million blended tokens vs $20.00 for Claude Fable 5.

Which has the bigger context window, Claude Fable 5 or Claude Opus 4.8?

Claude Fable 5 has the larger context window: 1,000,000 tokens vs 500,000.

Can Claude Fable 5 replace Claude Opus 4.8 for coding?

Both are viable for coding. Most capable widely-released Claude (Claude Fable 5) vs Elite coding and multi-step reasoning (Claude Opus 4.8) — pick based on which strength matters more for your workload.

Which is faster, Claude Fable 5 or Claude Opus 4.8?

Claude Opus 4.8 is faster: 58 t/s vs 41 t/s, measured on our speed benchmarks.

Claude Fable 5 pricing Claude Opus 4.8 pricing vs GPT-5.6 Sol vs Grok 4.3 vs Gemini 3.1 Pro vs Claude Opus 4 Premium model tests

Pricing verified 2026-06-07. Specs verified 2026-08-08.