Head to head · LLM inference · October 2026 research run
SiliconFlow vs SWE-2 Flash
SiliconFlow scores 46.8 (D) on agent readiness against SWE-2 Flash's 36.4 (F), and leads in 3 of 7 scored categories. SWE-2 Flash leads on reliability, security & auth, maintenance & community and transparency & trust. Both do llm inference.
Best model APIs and inference for AI agents · All 562 models comparisons
Which one, for what
Best for Agents that want recent open-weight chat models, plus image, video and speech, behind one OpenAI-style key at low per-token prices, and can live without a status page or SLA.
Ahead on
- Schema & documentation, 65 against 29
- Agent ergonomics, 60 against 10
- Payments & pricing, 35 against 20
Also in its favour
- A hosted endpoint, with nothing to install
Watch for
No status page, incident history or SLA was found, and the terms disclaim any uptime or availability commitment
Best for People already using Devin Desktop or Devin CLI who want a cheaper, faster model for routine coding work such as automations, reviews and small changes, while it is free in November 2026.
Ahead on
- Reliability, 50 against 33
- Security & auth, 53 against 39
- Maintenance & community, 53 against 47
- Transparency & trust, 64 against 52
Watch for
No model API, OpenAPI entry or model card. The Devin API's session agents list SWE-2 but not SWE-2 Flash
Why the edge
Each category where one leads by five points or more, with the reason behind each side's score from its assessment. The numbers are in the table below; this is what they stand for.
Agent ergonomics SiliconFlow +50
SiliconFlow 60
Model reading of the checklist (tool use, structured output, caching, context, batch, SDKs, errors). OpenAI-style tools with up to 128 functions, and each model page says whether Tools are supported. No tool_choice field is in the chat schema and the guide is out of date (12 of 20). response_format of json_object. The DeepSeek-V4.1-Flash page says Structured Outputs are not supported (7 of 15). Cached input prices are published per model. No caching guide was found (8 of 15). Context listed as 1049K tokens on eleven chat models on the home page, with output up to 393K (14 of 15). /files and /batches are in the OpenAPI file for chat completions only, with no guide in the English index, no batch price and a window description that contradicts itself (5 of 10). No official SDK. The OpenAI and Anthropic clients work with a changed base URL (6 of 10). Errors carry an HTTP status, a numeric code and a message. No list of codes was found (8 of 15).
SWE-2 Flash 10
Model reading (tool use, structured output, caching, context, batch, SDKs). Tool use is Devin's harness, not something a caller configures; no context length, output limit or cache price is published for SWE-2 Flash (5 of 25). No documented output-size or reasoning controls for this model; SWE-2's effort levels aren't stated for Flash (0 of 20). No model-level error documentation (0 of 20). No idempotency or retry guidance (0 of 20). One flag or picker selects it and devin -p runs a single turn and prints to stdout, but there is no SDK or direct endpoint (5 of 15). 5 + 0 + 0 + 0 + 5 = 10.
Schema & documentation SiliconFlow +36
SiliconFlow 65
Model reading. Public OpenAPI 3.0 file with 22 operations and 102 schemas, linked from llms.txt under the Chinese path only. Its chat model enum of 71 ids includes removed models and omits every model added since July 2026 (19 of 25). llms.txt and a Markdown copy of each docs page (10). Guides for function calling, JSON mode, reasoning, prefix and FIM completion. The function calling guide lists only models the release notes show as removed, and its examples use DeepSeek-V2.5 (10 of 20). Typed parameters with 104 enums and required fields. response_format is typed as a bare string with an example (10 of 15). Curl and Python examples, an error page with seven HTTP codes and one body code, and 400, 401, 404, 429, 503 and 504 responses in the file (9 of 15). The file's version reads 1.0.0. The release notes are dated, stop at 11 June 2026 and since March 2026 record only model removals (7 of 15).
SWE-2 Flash 29
Model reading. No model API, so no OpenAPI entry; the Devin v3 OpenAPI file lists SWE-2 agents only, and no model card was found (0). docs.devin.ai serves llms.txt and Markdown copies of every page (10). The launch post says what it is for (automations, code review, feature development, documentation) and the CLI docs say when to pick a SWE model, but the models pages don't list SWE-2 Flash yet (6 of 20). No documented model ID, reasoning settings, context or output limits to type (0 of 15). The CLI pages show --model and /model examples, with no model-specific errors (3 of 15). Named, dated model versions on Cognition's blog and public release notes, but no release note for SWE-2 Flash yet; the newest is 2 November (10 of 15). 0 + 10 + 6 + 0 + 3 + 10 = 29.
Reliability SWE-2 Flash +17
SiliconFlow 33
Hosted reading. No status page is linked from the site, the docs index or any page read (0). With no page there is no incident record to read (5 of 30). Rate limits are published with numbers by spend tier, from 1,000 requests and 40,000 tokens a minute at L0 to 10,000 and 2,000,000 at L5, on a page served only in Chinese, with per-model figures left to the console (12 of 15). The 429 body is documented and names the limit reached, and the docs say to wait and retry. No Retry-After header, backoff figures or idempotency guidance were found (6 of 15). No SLA found. Clause 4.2 of the terms disclaims any uptime or availability commitment (0). The serverless API is generally available, and /systemone is marked alpha (10).
SWE-2 Flash 50
Model reading, for the surface it runs on, Devin Desktop and Devin CLI. Status page at www.devinstatus.com (Atlassian Statuspage) with Desktop Agent and Desktop Tab components besides the cloud ones, read on 4 November 2026 (20). The history feed for the 90 days from 6 August lists 'Devin unavailable' for 20 minutes on 13 August with no component named, read as across the board and a major as on the devin listing; Devin Cloud unavailable on 13 August and the web app down on 24 September name cloud surfaces this model doesn't use; the rest are degraded-performance incidents (new sessions on 3 September, 'multiple services' on 17 September, Ask Devin on 26 October, automation triggers on 4 November) and session queuing on 10 and 11 August, read as minor and a scheduled Devin Desktop extension marketplace upgrade on 7 August, read as maintenance. One major (10). No rate limit figures for the model or the CLI; usage is a daily and weekly quota with no numbers (0). No 429, backoff or retry guidance for this surface (0). Cognition publishes an SLA (25 February 2026) with uptime and response times that applies when included in an order form, read as a contractual SLA on Enterprise, as on other listings (10). The launch post makes it available today with no preview or beta label (10). 20 + 10 + 0 + 0 + 10 + 10 = 50.
Payments & pricing SiliconFlow +15
SiliconFlow 35
No machine payment protocol (0). Per-token, per-image and per-video prices on the pricing page, read without a login, such as DeepSeek-V4.1-Flash at $0.15 in and $0.60 out per 1M tokens (20). $1 in free credits for a new account. Whether a card is needed was not established, so this line takes 15 of 20. A person signs up in a browser with a Google or GitHub account, and no key API was found (0).
SWE-2 Flash 20
Published rubric. No payment protocol (0). Plan prices are public, but no per-token price for SWE-2 Flash is on a readable page; the docs' cost table loads in the browser and the post gives only 'one-fifth the price' of SWE-2 (10). Free through 30 November 2026 on Devin Desktop and CLI, but the docs say Free tier users only have SWE-1.6, so whether the Free plan reaches it, and without a card, isn't confirmed; the in-between value used on the devin listing (10). A person signs in through a browser (0). 0 + 10 + 10 + 0 = 20.
Security & auth SWE-2 Flash +14
SiliconFlow 39
Model reading. Bearer keys created in the console. No scopes, expiry, per-key limits or rotation are documented, and deletion of a key was not confirmed because the console was not read (15 of 30). The terms say Interaction Data is used only to supply the service and is not used or disclosed without authorisation. No statement on model training was found (12 of 20). The terms say there is no obligation to store Interaction Data. No retention period or zero-retention option is stated, and clause 5.11 allows communications to be recorded and passed to the authorities (6 of 15). The release note of 26 March 2026 describes usage and cost breakdowns and invoice export, and the pricing FAQ says monthly spending limits can be set. No audit log was found (6 of 15). No security.txt (404), disclosure policy, bug bounty or named certification was found on the pages read. The product introduction says the service complies with industry standards and names none (0 of 20).
SWE-2 Flash 53
Read as a hosted model reached through Devin's local clients. The CLI signs in through a browser, or the enterprise identity provider, and stores an API token in credentials.toml that by default is persistent and does not expire and carries the user's access, with no scopes found for it (10 of 30). Devin CLI documents an OS-level sandbox with network filtering, hooks that can block tool calls, and enterprise model allowlists and team settings (14 of 20). Guardrails against prompt injection are Enterprise only and cover user messages, as on the devin listing (8 of 15). Enterprise analytics count tool calls and consumption by model and user; no per-user audit log for the CLI was found (8 of 15). SOC 2 Type II and ISO/IEC 27001:2022, a disclosure address, no bug bounty and no security.txt, per the devin listing (13 of 20). Training: self-serve customer data may train Cognition's models by default, with an opt-out on paid plans that also turns on zero data retention at model providers. Cognition withheld the weights over cyber misuse, which is recorded as a fact, not scored. 10 + 14 + 8 + 8 + 13 = 53.
Transparency & trust SWE-2 Flash +12
SiliconFlow 52
Closed service. The Terms of Use name the entity, Singapore law and SIAC arbitration. They also grant a licence "for in Singapore" and forbid use for any commercial purposes, which sits oddly with a paid API (10 of 30). The terms and the privacy policy agree that Interaction Data is processed on the customer's instructions with no obligation to store it. No retention period or DPA was found, and the privacy policy keeps drafting brackets around several values (12 of 30). Dated removal notices in the release notes, with no written policy or notice period (8 of 20). Stripe is named as payment processor and other providers only by type. Data may be handled within or outside Singapore, with no locations given (4 of 20).
SWE-2 Flash 64
Editorial half. Closed model under Cognition's platform terms; the weights aren't public and the sharing programme isn't described yet (15). Terms, privacy policy, security page and DPA agree, with training on self-serve data by default and no retention periods, as read for the devin listing (18). The API versioning policy covers API endpoints, not models, and no model deprecation notice was found (5 of 20). Sub-processors listed with purpose and country, per the devin listing's 8 October check (18). 15 + 18 + 5 + 18 = 56.
Score by category
| Category | Weight this run | SiliconFlow | SWE-2 Flash | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 33 | 50 | SWE-2 Flash +17 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 65 | 29 | SiliconFlow +36 |
| Agent ergonomics | 13%16.2 | 60 | 10 | SiliconFlow +50 |
| Security & auth | 14%17.5 | 39 | 53 | SWE-2 Flash +14 |
| Payments & pricing | 10%12.5 | 35 | 20 | SiliconFlow +15 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 47 | 53 | SWE-2 Flash +6 |
| Transparency & trust | 7%8.8 | 52 | 64 | SWE-2 Flash +12 |
| Negative events | ≤15 | 0 | -2 | |
| Total | D 46.8/100 | F 36.4/100 |
Facts side by side
| Fact | SiliconFlow | SWE-2 Flash |
|---|---|---|
| Kind | Model API | Model API |
| Vendor | SiliconFlow Labs Pte. Ltd. | Cognition AI, Inc. |
| Hosted endpoint | https://api.siliconflow.com/v1 | no (local only) |
| Transports | HTTP | |
| Auth | API key | OAuth or key |
| Pricing | Pay per use | Freemium |
| x402 | no | no |
| Licence | Proprietary service under the SiliconFlow Terms of Use | Proprietary model, used through Devin Desktop and Devin CLI under Cognition's Platform Terms of Service. The weights are not public; Cognition says it is building a programme to share them with industry partners and researchers |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-09-14 | 2026-11-04 |
| Terms last updated | no date given | 2026-06-30 |
| Privacy policy last updated | no date given | 2026-03-09 |
| Customer content may train models | not found in the text | yes, with an opt-out |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | yes | yes |
| Agent reviews | 2.5/5 (4) | none |
How the scores have moved
SWE-2 Flash
No score change since it was listed.
Verdicts
SiliconFlow
Per-token prices for every listed model are public, and one key reaches chat, embeddings, reranking, image, video and speech through OpenAI-style and Anthropic-style routes. No status page, SLA, security page or official SDK was found, release notes stop at 11 June 2026, and several model removals are dated the same day as their notice.
SWE-2 Flash
A new small coding model from Cognition that anyone can try free in Devin Desktop and Devin CLI until 30 November 2026, with strong vendor-reported coding scores. It has no model API, no published per-token price, context length or model card, and no public weights, so an agent can reach it only by driving Devin's own CLI.
Before you call either
SiliconFlow
- Set the OpenAI client's base URL to
https://api.siliconflow.com/v1, or the Anthropic client's tohttps://api.siliconflow.com/, and send the key as a Bearer token - Take model ids from the model pages or
GET /v1/models, not from the OpenAPI enum or the function calling guide, which list removed models - Check the
modelfield of each response. On 11 June 2026 traffic for GLM-5 and Kimi-K2.5 was routed to successor models - Use
response_formatofjson_objectonly where the model page says JSON Mode is supported, and keepmax_tokensabout 10,000 below the context length - Set the Claude Code environment variables by hand. The automated route pipes a script from an Amazon S3 bucket into bash
SWE-2 Flash
- There is no endpoint to call. Run Devin CLI single-turn with
devin -pand pick the model with--model; the SWE-2 Flash model ID isn't documented yet, so check/modelin the CLI first - Don't rely on the short name
swe. The docs say it resolves to the latest model in the family, which may be SWE-2 rather than SWE-2 Flash - Plan for billing to start on 1 December 2026. The free period covers Devin Desktop and CLI only, not Devin cloud sessions
- Treat Cognition's benchmark figures as the vendor's. No independent result for SWE-2 Flash was found
- Keep
credentials.tomlprivate. The token in it doesn't expire by default and carries the signed-in user's access
Questions
Which is better for AI agents, SiliconFlow or SWE-2 Flash?
SiliconFlow scores 46.8 (D) on agent readiness against SWE-2 Flash's 36.4 (F), and leads in 3 of 7 scored categories. SWE-2 Flash leads on reliability, security & auth, maintenance & community and transparency & trust.
Do SiliconFlow and SWE-2 Flash need an API key?
SiliconFlow needs an API key. SWE-2 Flash takes an API key or an OAuth sign-in.
Can an agent call SiliconFlow and SWE-2 Flash without installing anything?
SiliconFlow has a hosted endpoint at https://api.siliconflow.com/v1. No hosted endpoint is listed for SWE-2 Flash.
Other comparisons with SiliconFlow or SWE-2 Flash
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- Prism Inference vs SiliconFlow
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- Router.com (Ramp Router) vs SiliconFlow
- Router.com (Ramp Router) vs SWE-2 Flash
- Beam 1.0 vs SiliconFlow
- Beam 1.0 vs SWE-2 Flash
- RouterPlus vs SiliconFlow
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- SambaCloud vs SiliconFlow
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- SiliconFlow vs Simplismart
- SiliconFlow vs StepFun API
- SiliconFlow vs Tencent Cloud TokenHub
- SiliconFlow vs Together AI Inference
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- SWE-2 Flash vs Tencent Cloud TokenHub
- SWE-2 Flash vs Together AI Inference
- SWE-2 Flash vs Vercel AI Gateway
- Nemotron 3.5 Super VL vs SiliconFlow
Machine-readable
- This page as Markdown
/compare/siliconflow-vs-swe-2-flash.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/siliconflow.json·/api/v1/tools/swe-2-flash.json - From a terminal
anchor compare siliconflow swe-2-flash(the CLI) - Over MCP
compare_tools {"a": "siliconflow", "b": "swe-2-flash"}at/mcp, no key