OpenHermes 2.5 Mistral 7B on Fireworks AI

OpenHermes 2 · Teknium

ProvisionedOpen Source

Last refreshed 2026-06-15. Next refresh: weekly.

Why use OpenHermes 2.5 Mistral 7B on Fireworks AI?

Fireworks AI offers OpenHermes 2.5 Mistral 7B with pay-as-you-go pricing at $0.20/1M input tokens. Fireworks AI offers a generative AI platform as a service, focusing on rapid product iteration and cost-efficient AI deployment.

Compare OpenHermes 2.5 Mistral 7B across 2 providers to find the best fit for your use case
Input / 1M
$0.20
Output / 1M
$0.20
Cache
Not sourced
Batch
Not sourced

Setup recipe

Python + curl
Install
pip install openai
Auth
export FIREWORKS_API_KEY=...
Call
import os
from openai import OpenAI
client = OpenAI(
    api_key=os.environ["FIREWORKS_API_KEY"],
Model ID
accounts/fireworks/models/openhermes-2p5-mistral-7b

Request example

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["FIREWORKS_API_KEY"],
    base_url="https://api.fireworks.ai/inference/v1"
)
response = client.chat.completions.create(
    model="accounts/fireworks/models/openhermes-2p5-mistral-7b",
    messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)

Gotchas

  • Use provider model ID "accounts/fireworks/models/openhermes-2p5-mistral-7b", not the LLMReference slug "openhermes-2.5-mistral-7b".
  • Fireworks model IDs use "accounts/fireworks/models/{model-name}" format, e.g. "accounts/fireworks/models/llama4-scout-instruct-basic" or "accounts/fireworks/models/deepseek-r1".
  • The examples expect FIREWORKS_API_KEY; rename it only if your application config maps the new variable.

Compare OpenHermes 2.5 Mistral 7B Across Providers

ProviderInput (per 1M)Output (per 1M)
Together AI$0.20$0.20
Fireworks AI$0.20$0.20

Pricing

TypePrice (per 1M)
Input tokens$0.20
Output tokens$0.20

Capabilities

No model capability flags are currently sourced.

About OpenHermes 2.5 Mistral 7B

OpenHermes 2.5 Mistral 7B is an advanced large language model developed by Teknium, building on the previous version, OpenHermes 2. Utilizing a transformer architecture, it's fine-tuned on over one million entries, combining code and non-code data, primarily composed of GPT-4 generated text. This enhances its human-like response capabilities across diverse contexts. It excels in conversational AI with its multi-turn dialogue support through the ChatML format, significantly improves in code generation tasks with a high HumanEval score, and performs robustly on benchmarks like GPT4All and AGIEval.

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Model Specs

Released2023-12-15
Parameters7B
Context32k
ArchitectureDecoder Only
Knowledge cutoff2023-12

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