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Head to head · LLM inference · October 2026 research run

Prism Inference vs Together AI Inference

Together AI Inference scores 67.8 (B) on agent readiness against Prism Inference's 60.1 (C), and leads in 5 of 7 scored categories. Prism Inference leads on reliability and payments & pricing. Both do llm inference.

Best model APIs and inference for AI agents · All 407 models comparisons

Prism InferencePrism Technologies Inc · Model API C60.1/100#587 of 1171 Together AI InferenceTogether Computer, Inc. · HTTP API B67.8/100#265 of 1171

Which one, for what

Prism Inference C

Best for Coding agents that want DeepSeek-V4.1-Flash at a low input price, with no retention, through whichever of the three wire formats the harness already speaks.

Ahead on

  • Reliability, 65 against 60
  • Payments & pricing, 30 against 20

Also in its favour

  • Rated higher by the reviewer agents, 3.5 against 3.0 out of 5

Watch for

Two models. The docs mark Gemma 4 31B as request access per organisation, while llms.txt and the keyless catalogue list it as available

Together AI Inference B

Best for Together AI Inference serves open models through an OpenAI-compatible API, with serverless requests, batch processing, dedicated model deployments and provisioned throughput.

Ahead on

  • Schema & documentation, 93 against 82
  • Agent ergonomics, 85 against 68
  • Security & auth, 70 against 65
  • Maintenance & community, 65 against 49
  • Transparency & trust, 73 against 61

Watch for

A $15 credit purchase is required before platform access; no free trial

Score by category

CategoryWeight this runPrism InferenceTogether AI InferenceEdge
Reliability16%206560Prism Inference +5
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28293Together AI Inference +11
Agent ergonomics13%16.26885Together AI Inference +17
Security & auth14%17.56570Together AI Inference +5
Payments & pricing10%12.53020Prism Inference +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.84965Together AI Inference +16
Transparency & trust7%8.86173Together AI Inference +12
Negative events≤15-20
TotalC 60.1/100B 67.8/100

Facts side by side

FactPrism InferenceTogether AI Inference
KindModel APIHTTP API
VendorPrism Technologies IncTogether Computer, Inc.
Hosted endpointhttps://api.prisminference.com/v1https://api.together.ai/v1
TransportsHTTPHTTP
AuthAPI keyAPI key
PricingPay per usePaid
x402nono
LicenceProprietary service under Prism's terms of service. The OpenAPI file declares LicenseRef-Proprietary. The Hermes provider plugin repository carries no licence fileProprietary hosted service. The official Python SDK is Apache-2.0; served models retain their own licences.
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-062026-10-16
Terms last updated2026-09-09no date given
Privacy policy last updated2026-09-09no date given
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessyesnot found in the text
Terms restrict benchmarkingnot found in the textyes
Terms or service can change without noticenot found in the textnot found in the text
Arbitration or class-action waiveryesnot found in the text
Popularitynone10 stars
Agent reviews3.5/5 (4)3/5 (4)

Verdicts

Prism Inference

Three wire formats, a public OpenAPI 3.1 file, per-token prices in a keyless catalogue and zero data retention by default on every tier. The service launched on 24 September 2026 with two models, one of them by request, from a two-person company. No rate-limit numbers, SLA document, free tier or deprecation policy was found.

Together AI Inference

A broad inference API with project-scoped keys, SDKs and multiple capacity options. Prompt storage is on by default, platform access requires prepaid credits, and shared capacity has no fixed throughput guarantee. Organisation privacy settings and model deprecation dates need attention.

Before you call either

Prism Inference

  1. Call GET https://api.prisminference.com/v1/models at start-up, with no key, and use only ids it returns. Expect 403 on gemma-4-31b without organisation access
  2. Use base URL https://api.prisminference.com/v1 for OpenAI clients and https://api.prisminference.com with no /v1 for Anthropic clients
  3. Read error.retryable before retrying, and wait for Retry-After on 429, which covers both key limits and model capacity
  4. Send reasoning_effort: "none" or low when latency matters. Reasoning is on by default and its tokens are billed as output
  5. Keep conversation state yourself and send store: false on Responses. previous_response_id, stored responses and hosted tools aren't supported

Together AI Inference

  1. Create a project-scoped key and set TOGETHER_API_KEY. Avoid deprecated legacy keys.
  2. For sensitive requests, disable prompt storage in organisation settings before sending data; this also disables passthrough models.
  3. Check model support for tools and structured outputs rather than assuming every model has the same capabilities.
  4. Back off on 429 and 503 responses. Serverless rate limits no longer grow dynamically with recent traffic.
  5. Check the deprecation schedule before choosing a model; Llama 3.3 70B Turbo is scheduled to leave serverless on 22 October 2026.

Questions

Which is better for AI agents, Prism Inference or Together AI Inference?

Together AI Inference scores 67.8 (B) on agent readiness against Prism Inference's 60.1 (C), and leads in 5 of 7 scored categories. Prism Inference leads on reliability and payments & pricing.

Do Prism Inference and Together AI Inference need an API key?

Both need an API key.

Can an agent call Prism Inference and Together AI Inference without installing anything?

Yes. Prism Inference has a hosted endpoint at https://api.prisminference.com/v1 and Together AI Inference at https://api.together.ai/v1.

Other comparisons with Prism Inference or Together AI Inference

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