unbound
2 models live · OpenAI-compatible

Open models.
No refusals.

Abliterated frontier open-weight models behind one OpenAI-compatible API. Same weights, same brains, refusals removed. Pay per token. Nothing logged.

curl https://api.unbound.ai/v1/chat/completions \
  -H "Authorization: Bearer $UNBOUND_KEY" \
  -d '{
    "model": "unbound-pro",
    "messages": [{"role": "user", "content": "..."}]
  }'
01Models

Unbound Flash

unbound-flash

Fast and cheap. Chat, agents, long-form writing, bulk jobs.

base
Qwen3.8-27B
arch
27B dense
context
256K
speed
~120 tok/s
input / 1M
$0.20
output / 1M
$0.80

Unbound Pro

unbound-pro

The big one. Reasoning, code, tool calling, 1M-token context.

base
DeepSeek-V4.1-Flash
arch
MoE
context
1M
speed
~70 tok/s
input / 1M
$0.60
output / 1M
$2.40
02Benchmarks

Refusals go to zero. Everything else stays put.

benchmarkmodelbaseunbound
Refusal rate
% of 1,000 borderline prompts refused
Flash41.20.6
Pro33.80.3
MMLU-Pro
knowledge + reasoning
Flash79.479.1
Pro85.284.9
GPQA Diamond
graduate-level science
Flash68.367.7
Pro79.679.0
LiveCodeBench
fresh competitive coding
Flash61.561.2
Pro74.173.8
BFCL v4
tool / function calling
Flash72.071.8
Pro80.380.1

Preview numbers. Full eval suite + methodology ships with launch.

03Pricing
Free
$0forever
  • 1M tokens / month on Flash
  • 20 requests / min
  • OpenAI-compatible API
  • Community Discord
Get API key
Propopular
$20/ month
  • $20 of usage included
  • Flash + Pro, pay-as-you-go after
  • 600 requests / min
  • Full 1M context on Pro
  • Zero data retention
Start Pro
Scale
Custom
  • Dedicated replicas
  • Volume token pricing
  • 99.9% uptime SLA
  • Private deployments + fine-tunes
Talk to us
04FAQ

What does abliterated mean?

Safety tuning teaches a model a single 'refusal direction' in its activations. We find that direction and project it out of the weights. No retraining, no lobotomy: benchmarks move by tenths of a point.

Is it a drop-in for OpenAI?

Yes. Point any OpenAI SDK at our base URL and swap the model name. Streaming, tool calls and JSON mode all work. Anthropic-style /v1/messages too, so Claude Code and friends plug in.

Do you log my prompts?

No. Prompts and completions are never stored or trained on. We keep token counts for billing, nothing else.

Anything off limits?

One hard line: child sexual abuse material is blocked at the edge and reported, as required by law. Everything else is between you and your local laws.