Claude Opus 4.1 vs Ember-1
Ember-1 is 5.0× cheaper than Claude Opus 4.1 on a blended basis. Ember-1 has the larger context window at 1.0M tokens.
Side by side
Green marks the better value in each row where a comparison is meaningful.
| Attribute | Claude Opus 4.1 | Ember-1 |
|---|---|---|
| Provider | Anthropic | Fireworks |
| Input / 1M tokens | $15.00 | $3.00 |
| Output / 1M tokens | $75.00 | $15.00 |
| Blended / 1M tokens | $30.00 | $6.00 |
| Cached input / 1M | $1.50 | $0.300 |
| Context window | 200K | 1.0M |
| Max output | 32K | 944K |
| Input modalities | image, text, file | text, image |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Structured output | No | Yes |
| Prompt caching | Yes | Yes |
| Open weights | No | No |
| Knowledge cutoff | 2025-01-31 | - |
| Released | August 5, 2025 | September 24, 2026 |
Frequently asked
Is Claude Opus 4.1 or Ember-1 cheaper?
Ember-1 is 5.0× cheaper than Claude Opus 4.1 on a blended basis.
What is the price difference between Claude Opus 4.1 and Ember-1?
Claude Opus 4.1 costs $15.00 per million input tokens and $75.00 per million output tokens. Ember-1 costs $3.00 and $15.00 respectively.
Which has the larger context window, Claude Opus 4.1 or Ember-1?
Ember-1, at 1.0M tokens versus 200K.