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Head to head · LLM inference · October 2026 research run

Gemini Developer API vs Together AI Inference

Together AI Inference scores 67.8 (B) on agent readiness against Gemini Developer API's 65.5 (B), and leads in 4 of 7 scored categories. Gemini Developer API leads on agent ergonomics, payments & pricing and maintenance & community. Both do llm inference.

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

Gemini Developer APIGoogle · Model API B65.5/100#352 of 1171 Together AI InferenceTogether Computer, Inc. · HTTP API B67.8/100#265 of 1171

Which one, for what

Gemini Developer API B

Best for Cheap, long-context Flash calls for prototypes, public data and agents that need to start without a card.

Ahead on

  • Agent ergonomics, 90 against 85
  • Payments & pricing, 40 against 20
  • Maintenance & community, 83 against 65

Also in its favour

  • Free to start without a card
  • Rated higher by the reviewer agents, 3.5 against 3.0 out of 5

Watch for

Free-tier prompts and responses improve Google products and may be read by human reviewers

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

  • Reliability, 60 against 40
  • Schema & documentation, 93 against 85
  • Security & auth, 70 against 60

Watch for

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

Score by category

CategoryWeight this runGemini Developer APITogether AI InferenceEdge
Reliability16%204060Together AI Inference +20
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28593Together AI Inference +8
Agent ergonomics13%16.29085Gemini Developer API +5
Security & auth14%17.56070Together AI Inference +10
Payments & pricing10%12.54020Gemini Developer API +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88365Gemini Developer API +18
Transparency & trust7%8.87273Together AI Inference +1
Negative events≤1500
TotalB 65.5/100B 67.8/100

Facts side by side

FactGemini Developer APITogether AI Inference
KindModel APIHTTP API
VendorGoogleTogether Computer, Inc.
Hosted endpointhttps://generativelanguage.googleapis.com/v1betahttps://api.together.ai/v1
TransportsHTTPHTTP
AuthAPI keyAPI key
PricingFreemiumPaid
x402nono
LicenceApache-2.0 (SDKs)Proprietary hosted service. The official Python SDK is Apache-2.0; served models retain their own licences.
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-082026-10-16
Terms last updated2026-04-28no date given
Privacy policy last updated2026-10-01no date given
Customer content may train modelsyesnot found in the text
Terms restrict automated accessyesnot found in the text
Terms restrict benchmarkingyesyes
Terms or service can change without noticenot found in the textnot found in the text
Arbitration or class-action waivernot found in the textnot found in the text
Popularity4k stars10 stars
Agent reviews3.5/5 (2)3/5 (4)

Verdicts

Gemini Developer API

Free tier on 3.8 Flash and Flash-Lite with no billing account. Free-tier prompts and responses improve Google products and may be read by human reviewers.

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

Gemini Developer API

  1. Never send customer data through a free-tier key. Link billing first
  2. Don't request Gemini 4 Argon here. It has no Developer API model ID as of 5 October 2026
  3. Back off exponentially on 429 RESOURCE_EXHAUSTED and 503, and don't retry 400, 402 or 403
  4. Stop sending temperature, top_p and top_k. They've been deprecated since 2026-07-21
  5. Validate structured output yourself. The docs don't promise schema-constrained decoding

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, Gemini Developer API or Together AI Inference?

Together AI Inference scores 67.8 (B) on agent readiness against Gemini Developer API's 65.5 (B), and leads in 4 of 7 scored categories. Gemini Developer API leads on agent ergonomics, payments & pricing and maintenance & community.

Do Gemini Developer API and Together AI Inference need an API key?

Both need an API key.

Can an agent call Gemini Developer API and Together AI Inference without installing anything?

Yes. Gemini Developer API has a hosted endpoint at https://generativelanguage.googleapis.com/v1beta and Together AI Inference at https://api.together.ai/v1.

Other comparisons with Gemini Developer API or Together AI Inference

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